Honda Accord VCM

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Comments

  • thegraduatethegraduate Member Posts: 9,731
    That's odd about the gas pedal, since it isn't connected to anything mechanical like old throttle pedals; all Accords have had electronic throttles since 2006.
  • markm124markm124 Member Posts: 19
    I figured that I would add my two cents worth to the VCM discussion. I have had a 2009 EX since late November, but just recently took my first long (approx. 250 miles) trip. While I could certainly feel the VCM working, I did not find it annoying and I felt no excessive vibration.
    What has surprised me, though, is the low mileage that I have been getting. In mixed (mostly city) driving, I have been getting only 16-18 mpg. On this recent trip, I got only 23 mpg. It is possible that the car is not "broken in", but I expected better mileage from a 250 mile trip at a steady 65-70 mph.
  • jhinscjhinsc Member Posts: 399
    On my 08 V6, I have just over 10,000 miles and mileage is consistenty higher now. Mileage is now slightly better than my previous 06 V6. My last 2 fillups returned 27.1 and 26.4 mpg, with 50/50 driving. Steady throttle inputs, even in city driving helps. I also dont' have a lot of hills where I live - I'm sure that's a factor. I found that getting up to speed and then holding it steady is best for good mpg's.
  • markm124markm124 Member Posts: 19
    Thanks for the information. I don't have much over 2,000 miles. I have usually done fairly well, mileage wise, on most of my past cars. I regularly got 30+ mpg highway on my 2001 Saab 9-5. That was much higher than the government rating.
  • jbhansenjbhansen Member Posts: 20
    16-18mpg does seem unusually low, even for around town driving. As a comparison to your road trip, I drove a 300 mile round trip last weekend and got better than 27mpg. I've been getting 22-24mpg with mostly around town driving.
  • ron_211ron_211 Member Posts: 1
    I just traded my 2001 Passat V6 for a new 2009 Accord V6. Everyone told me how great Hondas were and after a short test drive I moved quickly to buy this new car. The Passat has a really smooth ride, always had to watch to be sure I wasn't speeding. On my first drive to work (50 miles of mostly highway) in the new Accord was a real disappointment. Vibration and a feeling of the engine missing are quite annoying. At a steady speed on a flat road it’s not bad, but who gets to drive like that. I only have a little over 100 miles on the car and I can already see I made a big mistake.
  • jmillerjmillerjmillerjmiller Member Posts: 113
    Just to add another 2008 Accord V6 navi mileage (just about 5000 miles on the car) to the list:
    Around town local driving with my lead foot I get around 17MPG - about the same as my prior Subaru Outback Turbo four cylinder which was rated that year at 250 horsepower. On the highway only trips, using cruise it is about 24MPG in western PA on the turnpike (hilly terrain), but rises up to about 26MPG on the Ohio flatland. Cruising speed is about 73 if traffic is good, unless in WV, then 78. This is about what I expected - this is a much bigger, heavier, and powerful car compared to my first 1993 Honda Accord EX 5spd that turned in 29 in mixed driving (that was the 150HP Vtec four). The only way to truly get good fuel mileage for my heavy foot driving style would be to buy a small car with a small engine and a manual.

    VCM seems least obtrusive when the cruise is in use, otherwise you can find yourself adding more throttle than needed and provoking the mini-downshift like feel to the six cylinder mode (kinda like when dropping overdrive on the old style transmissions).

    I haven't seen any company offer a performance program for the engine computer - they could shutdown the VCM mode etc and not have to worry about the gov't. I suspect Honda cannot offer a disable for the system without running foul of federal regulations regarding the emissions cert of which the engine computer is an important component.
  • yukayuka Member Posts: 9
    I am still conscious of the shifting into and out of ECO - regardless of the stupid light. It is not seamless and unnoticeable as Honda had touted it to be in its advertising, and there is nothing that can be done about it - some cars are worse than others, and some drivers more sensitive than others - sensitive driver and bad car = years of misery. IMHO. Gas mileage? Mine gets about 30 MPG on the NY Thruway between Albany and NY at 75-80 MPH - pretty flat going up the Hudson River Valley as it does. I have found that the hillier the terrain the worse the mileage and this engine seems to be more adversely affected by that than other cars I have driven - because it is going into and out of 3-4-6 cylinder operation all the time? And IMO, having it on cruise does nothing to help things - still noticeable. Just my own personal experience. Overall - in the 22-24 range, 50/50 city /highway. My car has about 10,000 miles on it and is an '08 EXL V-6.
  • jhinscjhinsc Member Posts: 399
    My recent fill up yielded 25.2 mpg and I estimate I did about 60/40 city hwy. I have now have a longer commute with more stop lights and traffic, plus I do a lot of mini-stops during the day where I leave it idling for a minute or so as I put stuff in and out of the trunk. I was only expecting about 22 mpg so I was pleasantly surprised. As far as how the VCM operates, I agree it's not seamless, but to me it's not unpleasant. To me it feels like it's shifting into another gear when the transition occurs. To make it even better, my wish list would include an idle-stop feature (as long as the a/c still works!) for even better mileage in city driving.
  • thegraduatethegraduate Member Posts: 9,731
    Sorry to hear you're car seems to be one of the more problematic ones, but for what its worth, your mileage is right on target; a little better than EPA estimates, actually. It calls for a combined average of 22 MPH (you're getting 22-24 MPG) and for 29 Highway (you're getting 30 while going at above normal Highway speeds, impressive!). Usually, EPA highway estimates are more likely to be achieved at or below 70 MPH.
  • jmillerjmillerjmillerjmiller Member Posts: 113
    Speaking of the ECO light - I would like to get the bulb removed on mine at some point. It's more worthless than the old upshift light on some of the manual transmission cars in the late seventies and early eighties, or the vacuum gauge marked fuel economy on some others. Just an annoying distraction.
    The car does have some odd engine notes and vibration from it, as well as the surging/hesitation. Those appear to be the nature of this particular design. I was a little leery buying the car just after seeing all the gee-whiz junk they did, as the earlier Accords (gen 6 and earlier) did not have this stuff. Navi is one thing, but adding active noise cancellation and a dual active chamber engine mount (earlier ones had a single chamber mount), etc. just hide the 3-4-6 schemes issues?
    This is a live with it for me, the steering wheel shimmy that mine has since day one is the bigger issue. It's been minimized with the third road force balance, but if you know what to look for it is still there in a small way.
    The paint job on this car has more flaws in it than the the last four vehicles I've owned combined - this is also a live with it. I had to wait for this one to come from Marysville, so I could not reject it for this, unlike if it was one on the lot.
    Still, I like this cars size, handling, and performance in general. But after loosing the low dash due to the ACS design it feels a lot more like a traditional american car design where the dash is high and you sit down in a tub.
  • yukayuka Member Posts: 9
    "But after loosing the low dash due to the ACS design it feels a lot more like a traditional american car design where the dash is high and you sit down in a tub."

    I totally agree - this is the most "American" Honda to date, losing the low cowl other had had. I liked the 1st generation Acura Legends - they had every bit as much leg room, etc. but were SOO much lower and the cowl ? Your line of sight was amazing.

    Some interesting comparisons - 1990 Legend v 2009 Accord V6

    Acura Honda
    Front HR 37 41
    Rear HR 37 37
    Front LR 43.4 42.5
    Rear LR 35 37
    Length 191 194
    Ht 54.7 58!
    Wt 3170 3600
    Width 69 73
    WheelBase 109 110
  • dpmeersmandpmeersman Member Posts: 275
    Most 2008 and newer vehicles have to meet new pedestrian impact standards which have resulted in higher cowl designs.
  • yukayuka Member Posts: 9
    Oh - I knew - what shame though - those low cowl designs were great. How many pedestrians have you hit? I have been driving 43 years/1,000,000+ miles and haven't hit one yet. Stupid laws.
  • thegraduatethegraduate Member Posts: 9,731
    Having been on an urban campus for three and a half years (U. of Alabama at Birmingham), I hear of about one car meets pedestrian accident per semester. Only one has been fatal though.
  • elliott2elliott2 Member Posts: 64
    We just had the active noise cancellation model replaced on our 2008 V6L-NAV. You can still hear (and feel) the affect of the misfiring cylinders, particularly at 25, 35, and 45 mph. The vibration is not as bad on the highway at higher speeds, of course, that's after all 4 wheels were balances for the third time. It's going back in for the noise. The driver and passengers should not be able to hear the sound of the misfiring cylinders.

    The VCM engine with the 5 speed automatic transmission is a bad combination. There are many time when driving around town that the car is outright annoying as the transmission [non-permissible content removed] up too early and the engine has switched to a lower number number of cylinders, causing the sensation that the engine is hesitating and doesn't have enough power. Other times, it feels like the engine is stalling out.

    The Honda factory rep avoided the topic of the sloshing sound from the gas tank; I've have never had a car that did that after 40 years of driving. Just took the car to one of the major insurance companies safety lab and they found that the baffles in the gas tank appear to have moved from their original fasteners in the tank. The result is that when there is more than 3/4th of a tank of gas, the gas not only sloshes but the weight of the gas moving causes the car to move slightly when you're stopping, almost like another car just slightly bumped you from behind.

    Counting the days to get rid of this car. It's great looking inside and out; love the handling (with the exception of the engine and the transmission). Until the problems with the VCM can be reduced (there's obviously a quality control issue when a large enough number of drivers are complaining at various websites).

    One final note: Honda needs to re-focus on quality. If you've looked at the latest rankings of cars, you'll notice that Honda is slipping from its previous rankings (the exception seems to be the Civic, which continues to rated very high). Accord is quickly becoming an "also ran".
  • jhinscjhinsc Member Posts: 399
    The driver and passengers should not be able to hear the sound of the misfiring cylinders.

    Elliot, I know you're unhappy with your Accord, but how exactly are the cylinders misfiring? Whether it's running on 6, 4, or 3, they're all firing as Honda intended to. Honda didn't make a mistake, they designed it that way. I love the fact when I'm cruising down the road on 3 cyl's because I'm getting great mpg's. My 08 V6 runs beautifully and now is exceeding my average mpg's over my previous 06 V6. My 08 doesn't run the same as the 06 did, but it wasn't designed or intended to. As for the noise problem you're having, could it possibly be subjective? I can 'hear' and 'feel' it when in 3 cyl mode but it's not annoying - for me it's better than having the louder 4 cyl all the time. I don't hear any sloshing in my gas tank so maybe you have a problem there. Have to ask; sure you don't have anything in the trunk?
  • elliott2elliott2 Member Posts: 64
    Sorry, I used "misfiring" as shorthand for not firing. Strange when you think about it: a engine that is designed to not fire all cylinders with liquid-filled, computer-controlled engine mounts, coupled with an active noise cancellation system that's designed to cover it all up. I don't believe the noise and vibration is subjective, the engine/transmission is either working as designed with no problem or, as is more likely the case, there is one component that is not working exactly as designed, causing the noise and vibration. Each time I've taken the care in, I've gotten a different mechanic (all the way up to the service manager) and their first reaction when they drive the car is, "what the hel! is that noise?". One of the mechanics stopped the car to look in the trunk to see if there was anything in it that was causing the sloshing and movement sensation. We went back and tried several other new cars off the lot and found (unscientific sampling) that about 2 out of 3 had the sloshing going on. As I stated on my earlier post, Honda has developed a quality issue with the Accord (note that Consumer Reports has lowered its rating on reliability on the 2008 Accord from prior model years.)
  • jhinscjhinsc Member Posts: 399
    Well the good news is Honda isn't looking at you like you have 2 heads - LOL! But seriously, it sounds like you have several problems with your Accord that does not seem to prevalent among all V6's. The only thing I have a concern with is reading reports of premature rear brake wear. It is what it is, but I swear if I take it in for an oil change and the service guys tell me I need new rear brakes, I'll quietly but firmly tell them and the sales manager together that if I have to pay for replacement, it will create serious reservations about purchasing another Honda. Since they're the only game in town for Honda, I'm sure they will at least listen to me carefully and hopefully make the right decision. Who knows, I may not even have any problems with it, but it seems to be an ongoing problem with the 08's. Good luck to you.
  • jmillerjmillerjmillerjmiller Member Posts: 113
    Mine has a high speed shimmy in the steering wheel (a rapid, but small left to right movement in the steering wheel). Its been there since day one, after the two new tires and three road force balances it is very minor in amplitude, but if you know what to look for it is still there at various highway speeds. At this point if I complain again I will get the - normal road vibration - diagnosis. When it is time to rotate the wheels this will become a problem again, but it won't be under warranty for tire work anymore. I may resort to adding some ceramic balance beads inside the tire in addition to the road force balance. The wide wheels exacerbate lateral imbalance issues, and the cars suspension appears to be quite sensitive. I will say that the V6 demonstrator had it too, but at the time I thought it was just that particular car - I had to wait a few weeks for mine to arrive.
    The VCM is too much effort for too little mileage gain in my book, but it is an integral part of the car - only way to get rid of it is to trade it. I now have around 5000 miles on the car and have noticed that at about 2500rpm it has gotten a bit of a 'droning' sound to the engine note in the front of the car.
    I like the car, but it does feel like Honda is subscribing to the larger and cheaper is better school, unlike my prior Subaru which most people got sticker shock looking at what you got (size and techno toys wise) for the money.
    We need to add Honda to the list of automakers where we don't by the first years model.
    The old saying with domestics was that the first year they found and fixed the bugs, so the second year was more reliable, then the third year they would finally add the more powerful engine and features that the car should have had from the beginning. Then they would redesign it and start the process over. So only buy the third year of any generation car.
    Brake wise, I had a 1990 Dodge Spirit ES V6 with four wheel disc brakes that only got to the mid 20K miles on each set of front brakes.
  • elliott2elliott2 Member Posts: 64
    If you also follow the Consumer Reports website on the 2008 honda accord, note that customers having the vibration problem have begun winning against hond in arbitration. Honda lost and is being ordered to repurchase the cars from the owners. To file, you must go through the BBB autoline as described in the warranty manual provided by Honda. Go get 'em!
  • dc10pltdc10plt Member Posts: 10
    I just got my 2009 EX v6. I like the car alot. I'm getting used to VCM but it isnt that bad for those that are on the fence. When VCM kicks on I can tell barely...but truth be told it isnt much. What I am however trying to figure out is the feeling that after going into VCM, it feels like it makes another transmission shift. I however note that there is NO change in RPM and the car was already in 5th gear at the time. Is this the torque converter? If so what is the purpose? It isnt intrusive or rough, just feels like after i'm crusing around 50mph and VCM kicks it shifts.

    Only part of this VCM system that could do without is going into VCM when letting off the accelerator. It keeps the car in gear as you slow and just feels like their is strain on the drivetrain as opposed to just going to neutral like all other cars out there. Slowing through 25mph you can feel the torque converter lock up.

    Again I'm sure this was well designed by HONDA for some reason but if anyone knows better Id love to know. I would sacrafice the extra 1mpg or whatever difference VCM makes if they would just make a mod where I could turn off VCM. When the car is cold in the morning and drive around..the car drives so great! Even with VCM..it drives fine but I just notice very little nitnoid stuff such as posted before.

    Otherwise I have no shimmy issues and my car is registering great mileage. ~25mpg average. Knowing what I know now..Id still by the V6 as the I4 doesn't have the power or good gas mileage anymore comparatively speaking. The only other car I would consider is the TL but that is much more money wise. I still feel the accord offers the best bang for the buck value and looks great. I'm sure HONDA tested VCM out and that my car will last for many worry free years.
  • dpmeersmandpmeersman Member Posts: 275
    "Only part of this VCM system that could do without is going into VCM when letting off the accelerator. It keeps the car in gear as you slow and just feels like their is strain on the drivetrain as opposed to just going to neutral like all other cars out there. Slowing through 25mph you can feel the torque converter lock up. "

    Sounds like your experiencing the Grade Logic Control of the 5 spd auto tranny. It does fly in the face of convention that the VCM indicator light stays on as your engine breaking on a downhill incline causing the engine to rev higher then if you were coasting in a higher gear. There are times I feel this feature achieves it's intended goal and times that I wish it would allow for a more efficient coast. It's a smart tranny but nothing can take the place of the human brain and a manual shifter or automated paddle shifter tranny. Like everything else the Accord is built to a price point and remains first and foremost a family sedan, and a fine one at that.
  • jmillerjmillerjmillerjmiller Member Posts: 113
    All the Honda Accords with automatics I have driven (95,99,08,09) have that as part of the grade logic, as another reply noted.
    If you want the coast sensation, just keep your foot 'barely' (just touching) on the gas pedal. Only when you completely lift off the pedal does the engine braking come into play.
    Once you get used to it, you can avoid having to hit the brakes all the time in traffic - unlike the people where the brake lights go on and off every ten seconds.
    Maybe this will help the rear brake pads last....
    The Honda transmission also downshifts as you slow to a stop - almost like a manual (watch the tack bump up each time), and is therefore ready to go if you step back on the gas as well as helping to slow the car a bit.
    The sensation on the highway (I think) is just what it feels like when you lose or gain a couple cylinders of power. The added power feels like a mini downshift, and when you lose the extra power it feels like a mini up-shift.
  • mrmack90mrmack90 Member Posts: 3
    This message isn't in direct response to jmiller, but more a response to the entire group attempting to justify Honda's current issues with the V6 VCM. I recently traded in a '98 Volvo for a 2009 Honda EXL - V6. With less than 200 miles on the new Honda, I am absolutely shocked with Honda's engineering screw up over their VCM technology. The only advantage for me right now is that I chose to lease this vehicle, so I can happily turn the darn thing in after 3 years!

    The fact that so many people here try to make excuses for Honda or make blind statements that they are sure the excellent Honda engineers "have tested the VCM engine and therefore it should be fine" is absolute crap. Bottom line is that Honda had too much vested in this engine and it went to production before it was ready. Honda should be ashamed of putting any car out that requires a driver to adjust their style of driving (to the point of walking on eggshells) in order to get a smooth ride and avoid downshifting drag and a perception of transmission issues while coasting at a constant MPG on the freeway with no rash traffic adjustments.

    As for my experience with the new car, despite its great new roomy interier and sleek exterior... the car is simply crap without acceptable, smooth engine performance. From my vantage point, if a 4 cylinder Jetta drives more smooth than a Honda Accord V6, then the Honda should be viewed as nothing but a failure by Honda engineers.

    I'm already marking the months off my calendar until my lease runs out...C'mon 2012!!!! And to those experiencing the same issues... stop making excuses for Honda... they let us down... and we should let them hear about it!

    All the best to everyone with your cars...
  • jhinscjhinsc Member Posts: 399
    mrmack90, thank you for your opinion, if you can call it that with less than 200 miles on your car. I'm sorry your intial experience hasn't been good. I wish Honda sales people would help educate buyers on VCM and how to get the most out of it. Spend some time in your new Accord. Heck, I put almost 50 miles on one before deciding to buy. You will find that if driven properly, the V6 with VCM will provide great mpg and performance. I read one post where the driver complained the ECO light flashed on and off over 60 times on their commute to work, and then went on to complain about their mpg's. Uhhh, one the ideas of the ECO light is to help make us more efficient drivers. The object is to have the ECO stay on as much as possible. The only reason the ECO flashes on/off all the time and due to the right foot pressing up and down on the gas pedal all the time. That is not efficient driving. Keep the right foot steady, accelerate moderately without holding up traffic to get up to speed and then let VCM take over and do it's thing. It's a remarkable piece of engineering that allows you the power of a V6 and the economy of 3 and 4 cyl and works well.
  • elliott2elliott2 Member Posts: 64
    mmack90 - thank you for your honest opinion. I happen to share it and believe that Honda's engineering prowess is a thing of the past. If a car is designed so that you're watching whether the ECO light is on or off in order to get better gas mileage, the car represents a danger of distraction to the driver for very little economic benefit as the car gets less gas mileage than the previous, smooth running generation of Honda engines.
  • thegraduatethegraduate Member Posts: 9,731
    If a car is designed so that you're watching whether the ECO light is on or off in order to get better gas mileage, the car represents a danger of distraction to the driver

    Then by all means get every hybrid off the road. You're driving for max economy in those, too. Take a look at the offerings below. Which seems most distracting? How about the ever-changing bar graphs on the mighty screen in the middle of the Altima's dash? Or perhaps you prefer the cartoons to be right there next to your speedo, as in the Camry and Fusion? You decide.

    By the way, for those who can't quite make it out, the ECO light in the Accord is the dim thing just below the 8 in the tachometer, not the bright green thing between the gauges (that's the D indicator). Face it, the Accord is one of the LEAST distracting models out there.

    Camry
    image

    Fusion
    image

    Altima
    image

    Accord
    image
  • mrmack90mrmack90 Member Posts: 3
    jhinsc,

    Believe it or (and despite other comments about constantly looking for the ECO light), I actually don't have a problem with it... not do I pay much attention to it. My primary issue is with breaking. I've found that while simply coasting with no pressure applied to the gas pedal because I know I have a turn or a stop coming up there is a very noticeable "downshift feeling" almost an instant drag in the car the actually lurches you forward a bit. In addition, I also experience this when applying the break with even pressure to come to a complete stop. I've noticed that if I break more aggressively and more at the last minute, I don't sense the "dragging". However, driving conservatively, applying the break with plenty of lead time, you get the noticeably drag... almost consistently between 3rd and 2nd on the downshift.

    Quite frankly, upon sensing a break, the system should either disengage ECO until the system senses acceleration or lock the ECO distribution (regardless of the number of cylinders in use) so that you have a smooth breaking situation.

    I've never experienced this issue with the Honda Pilots that contained the same technology in the 2007 models.
  • jhinscjhinsc Member Posts: 399
    mrmack90,
    What you are describing has nothing to do with VCM or torque converter. It is the Grade-logic software of the transmission. It will hold the current gear going up or down hills to maintain speed. It will also downshift when slowing down as you described.
  • dpmeersmandpmeersman Member Posts: 275
    As noted by jhinsc, I believe it is the Grade Logic that you are experiencing. I feel it working but In use on my particular vehicle it seems to work smoothly as I only experience engine braking as one would if you shifted from 3rd to 2nd in a manual transmission. In this sense I feel it is one of the more intelligent and best implemented auto transmissions I've ever owned.
  • cstilescstiles Member Posts: 465
    Hey Graduate--another stellar post (with photos) from you, as usual. This VCM discussion thread is my all time favorite on Edmunds...I come back every few weeks to be entertained.

    It will be interesting to see if Honda continues to invest in this technology. Most of their models with six pot engines (Accord, Pilot, Odyssey) include VCM, yet none of the Acuras offer it. The TL, MDX, and V6 TSX eschew VCM, and it does not appear that the upcoming ZDX will have it. Will the next generation RL offer VCM? Will any Acura model include it? Sure doesn't look like it right now.

    And as far as I can tell, VCM is offered in Australia, but not in most overseas markets, including Europe. But Honda's answer to fuel economy in Europe is to offer diesel powerplants.

    I personally am not against VCM, although the complexity and frustrations created for a small minority of Accord owners may ultimately trump its MPG benefits. And you have to wonder---if Honda truly believes in this technology, why do they not make it available on their upscale Acura line?
  • mrmack90mrmack90 Member Posts: 3
    So, is the Grade Logic something that can be adjusted/updated? Your experiences may be different than mine, but my car seems to have a more noticable (downshift) pull to it than I would like. When traveling in heavy traffic or along streets with many stoplights, the sensation can almost make one nautious. At times, it's almost as if I'm applying increased pressure suddenly on the brakes when I am not.

    I welcome anyone's thoughts, as it's driving me nuts!
  • elliott2elliott2 Member Posts: 64
    By the way, for those who can't quite make it out, the ECO light in the Accord is the dim thing just below the 8 in the tachometer, not the bright green thing between the gauges (that's the D indicator). Face it, the Accord is one of the LEAST distracting models out there.

    It's amazing how using a smaller scale for the Honda makes the other offerings look so much larger. So, how long have you worked for Honda?
  • thegraduatethegraduate Member Posts: 9,731
    It's the first pic that I found when I googled; no need to be snide. Below is yet another photo, showing the smaller-font, dimmer than the PRND321 or Odometer, ECO light.

    I'll pass on responding to the personally-directed comments. Others should follow suit. My sincere apologies, it appears the Fusion's picture wasn't the same size as the others either. :sick:

    image
  • jhinscjhinsc Member Posts: 399
    mrmack90, Grade Logic has been on all Honda's and Acura's since the mid-90's at least. It can be a little disconcerting and weird at first, but you do get used to it. Once you become accustomed to it, your driving style will anticipate it without thinking. Now when I drive a non-Honda vehicle, I find I have to adjust to not having Grade Logic, meaning I have brake differently in stop/go traffic or when approaching a stop light.
  • jam1000jam1000 Member Posts: 182
    This was the exactly the problem (the most significant one, at any rate) I had with my 08 V6 Accord before I got rid of it. To this day I don't know whether it was purely the grade logic or some combination of the grade logic and the VCM. In any event, when I had my first regular service done (~ 6,500 miles), I asked the dealer's service dep't to look at it, and they applied a software update. That helped the issue considerably, though did not entirely eliminate it.
  • elliott2elliott2 Member Posts: 64
    Honda engineering just finished looking at my 2008 Accord V6 and concluded that the droning noise, vibration, and sluggishness caused by the engine operating in 3 cylinder mode "is a normal characteristic of this make/model". If you're considering acquiring an Accord with VCM and are accustomed to the quiet smooth running engine in the previous generation of Accords, you will be annoyed by the VCM engine.

    For me, I just filed papers for arbitration.
  • accordguy0325accordguy0325 Member Posts: 169
    While it can be noticeable at times, I really like the VCM's fuel mileage... I had an 08 EX 4 cylinder that got around 20-22mpg consistently, and my new 09 EXL V6 gets similar mileage with allot more ooomph. Im sure as Honda improves this technology it will become even more seamless to the point where it really isn't noticed.
  • elliott2elliott2 Member Posts: 64
    The VCM's fuel mileage is not so great. In looking at the new consumer reports, they mention that the gas mileage on the VCM equipped models is a negative (not to mention that this model is now the lowest rated Accord by consumer reports in the last ten years). The new Ford Fusion is rated higher than the Accord for reliability, customer satisfaction, and cost (since the overall mpg for the Accord is lower that the previous Honda Accord V6). My 2003 Honda Accord V6 got between 26 and 30 mpg without any noise, vibration, or surging. Honda needs to go back to the drawing board on this one.
  • stove1stove1 Member Posts: 53
    Hi everybody. I plan to test drive an Accord V6 this month. I hope the VCM is not a deal killer. really like the look inside out over the Camry. And Accord has double wishbone suspension. I missed it last 20 years.

    At what speed does the VCM kick in ? Honda brochure only mention low cruising speed for 3 and high cruising for 4 cylinder. Does it kick in in city driving? Lots of acceleration to 45mph then brake to stop driving. On the highway I can maintain speed of 60 mph without much variation. Houston is all flat.
  • elroy5elroy5 Member Posts: 3,735
    I would inform the salesman of my concerns, and let him know I want to do an EXTENSIVE TEST DRIVE, at various speeds (from 30mph to interstate speeds). Make sure you test drive THE car you plan to purchase, and not assume each car will be the same.
  • dpmeersmandpmeersman Member Posts: 275
    During any driving situation VCM activity is in direct proportion to input and backing off on the throttle. The sensation felt is sometimes more evident as you slowly depress the throttle causing the 3 or 4 cyl mode of operation to switch to full 6 cyl power, but not if you aggressively engage the throttle. The schizophrenic nature of the design can be felt on a regular basis as the on again off again relationship your foot will have with the throttle during typical city driving. In my particular car it seldom is any more noticeable than a transmission shift. 21 months and almost as many miles of motoring with VCM as my constant companion and it would not deter me from buying an Accord again. Just seems that the rest of the mfg's have achieved the same results in fuel economy by going the traditional route of adding another cog to the tranny.
  • accordguy0325accordguy0325 Member Posts: 169
    Only problem with the Fusion is its lower resale value - not to mention its questionable long-term reliability. The folks at Ford may know how to beat imports in initial quality ratings, but long term dependability remains to be seen.
  • stove1stove1 Member Posts: 53
    Test drove Accord Ex-L V6 today. The Accord VCM is totally transparent to me. I don't feel it. The engine does what I want it to do. I step on the gas it speeds up, take my foot off it slows down. I can see the ECO light come on and off during all kinds of driving, no surge ,no hesitation associated with 3,4,6 operation. Maybe this 50 year old is just too old dumb and numb to feel it.

    The car as a whole package is a different story though. The Accord is terribly noisy ,the tires, wind , engine sound fills the passenger compartment. I can feel more engine vibration through the steering wheel. It reminds me of my 1980's Corolla. Not a top of the line $25000 Accord. Maybe I'm too spoiled by my Toyota 4runner V8, one of the most silky smooth quiet vehicle there is.

    Disappointed. I went on to drive a Mazda6. Very nice car. Quiet and competent but I dislike the exterior and interior look. Gets only 25 mpg on the highway. Forget that one. On to the Toyota dealer. Asked for a SE V6. What a pleasant surprise. Quiet like my 4runner. Silky smooth powertrain. That blue tint instrement panel is beautiful. I still don't like the Camry's look. I will just have to focus my eyes on the road ahead instead of the car itself.

    Golfski and other Accord critic: I hope you succeed getting Honda to drop the VCM. While it doesn't bother me I don't see no reason the engine should run at 2500 rpm instead of 1500 (my 4runner) at freeway speed. Everytime the engine turns, it takes a little life out of it. There's no excuse for this.
  • thegraduatethegraduate Member Posts: 9,731
    So far, its got the other guys beat based on previous generation models (Comparing my 2006 Accord with a 2006 Fusion, for example).

    I must say, I'm happy to see at least one of the "home team" guys getting it right.
  • stove1stove1 Member Posts: 53
    Test drove another V6 Accord today. Noisy noisy. This time my ear drum felt uncomfortable I don't know its the tire noise or Honda's active noise cancellation at work. I suspect the later.
  • accordguy0325accordguy0325 Member Posts: 169
    "your eardrum" > ? perhaps the ANC interferes with hearing-aids and thus created the noise you heard (if you wear one that is) ;)
  • elliott2elliott2 Member Posts: 64
    Only problem with your statement is that there isn't any published resale value yet for the Fusion Hybrid as it just came out. If you look at the latest Consumer Reports, the new style Accord has the lowest predicted resale value that Accord has had in the last 10 years.
  • csr67csr67 Member Posts: 58
    Just thought I'd post an update on my 2008 EXL V6. Just had the second oil change done at 15k miles. Car has been totally flawless, no VCM issues at all. I drive this car hard on a daily basis, and the 3.5L v6 is a great engine. If it was not for the green "eco" light coming on, I'd never know the VCM is active. Just an opinion from one satisfied owner. If you're in the market for a v6, go try one out, they don't all have issues.
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