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Jeep Liberty Diesel

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Comments

  • unclebubbaunclebubba Member Posts: 80
    It just figures, does'nt it!!! Talk about having you by the short hairs!!! :cry:
  • winter2winter2 Member Posts: 1,801
    As to the OEM tires, they are horrible. At 111 miles I got rid of them after hydroplaning at 30 mph in a puddle no more than two inches deep. My experience with OEM Goodyear rubber has been less than exemplary. They work well when going in a straight line and when the pavement is perfectly dry. Add water, even rain for several days and look out. I had Goodyear Invicta GL on my Dodge Dakota 4X2 pickup and had control problems up the wazoo. Tried adjusting the air pressure, etc. to no avail. Put a set of Pirelli P300 APT on the truck and the control problems simply disappeared. Had Goodyear Eagle GL on my wife's 1998 Chrysler Concorde. Trash tires! Poor wet control. Again went to Pirelli and what a difference. Had an Eagle Premier prior to the Chrysler with Goodyear GT+II. One peeled, two went out of round in less than 20K miles. Replaced with Pirelli and this large sedan handled like a sports car.

    Go to tirerack.com. Look at the Wrangler ST and how it has been evaluated, poorly. I have Bridgestone Alenza tires on my CRD and that has made such a difference all around.
  • winter2winter2 Member Posts: 1,801
    Add some skid plates and the right tires and this critter will rock crawl very nicely, thank you. I have seen videos of the Liberty crawling over rocks, etc. with the addition of the items I just mentioned.

    As to GM and Ford being in the pickle they are in, I blame it on their lack of foresight. Using health costs as an excuse is pretty poor. It is their lack of flexibility that is killing them.
  • winter2winter2 Member Posts: 1,801
    Is the Arco fuel ULSD? If it is send some to me in MD.
  • caribou1caribou1 Member Posts: 1,354
    "Because we can," he said.
    He could have also said: 'Because many humans feel proud to show their dominance'.
    When the cost of gasoline rose close to 1.5 Euro per liter over here, this didn't help dampen speed nor traffic. I think banks should be doing well when the cost of fuel goes up.
    The same argument applies to the cost of ownership: why do we have to pay 500 USD for service that you pay 200 USD in NA? Charging more gives more freedom to those who copy a given technology and will destroy interrest in making something nice (I'm referring to my owner's manual where it's written: 'Built with pride').
    European customs are chasing illegal imports of automobile spare parts such as hoods, headlights, shock absorbers, etc, just because local dealerships DO overcharge their customers that need to pay gas ~7.2 USD per gallon. :sick:
  • pmitchellpmitchell Member Posts: 2
    I also have not had any tire problems with the OEM tires. My first Liberty I purchased in 2002 with Goodyear’s did me well in light off roading, in the 120+ inch average snow we have per year, hauling my camper 5000 miles plus per year, etc. On the 2002 the Good Years went 52000 miles and still had plenty of tread before I replaced them. I just purchased my 2006 CRD and so far the winter driving was no problem even in the 15" snow storm we had several days ago.
    I plan to keep what I got on the new ones also.
    Have a good day
  • anomiousanomious Member Posts: 170
    "Damn tires"

    Just be careful...
  • ttandjjttandjj Member Posts: 21
    Just researching tires at tirerack.com. Found that the ratings are based on opinions of many people like yourself. However, If you go to a government site (safercars.gov) and look at actual testing, you would get a differnet answer. Based on the tires you have named and comparing to the government web-site. Most goodyears have a traction rating of A and temp rating of B with the average tire lasting approx. 2.8 to 4 times the control tires used. I could not find information on Pirelli P300 APT. Not sure if this is correct information. Eagle GL's don't seem to come up either.

    Wrangler ST's Have a traction rating of A, temp rating of B and rated to wear 3.4 times the control tires used.

    Bridgestone Alenza's have a traction rating of B (worse), temp rating of B (same) and wear 7 times longer than control tires.

    My studying tells me the only advantage is getting more mileage out of a tire that has poorer traction ratings. I guess they plan this for when you are spinning your tires due to less traction.

    Maybe the reason your having bad luck with your history of Goodyear tires is due to the way you drive. I could have crappy performance from Pirellis and Bridgestones if I purposely spin my wheels and make abrubt lane changes.
  • winter2winter2 Member Posts: 1,801
    The Pirelli P300 APT is no longer available in the U.S. As to the Alenza, look under Dueler H/L. I just looked at the sidewall ratings and they are Traction A, Temp B.

    As to my driving style, I am generally pretty gentle with the right foot and the steering. In the CRD I try very hard to avoid abrupt steering inputs. My wife is a NYC driver, so enough said there. It is difficult to purposely spin wheels on my wife's 1998 Concorde unless the surface is sufficiently wet or loose. The CRD is another story. I have unintentional left 30 feet of rubber on the road the first day I had it. Have chirped it in 4WD full time once or twice out of curiosity.
  • lightnin3lightnin3 Member Posts: 153
    Well it's about time someone gets some mileage out of this puppy.I was getting to wonder if I had a magic Liberty or something.
    So what speed are you travelling at to get that mileage??
    I'll guess... 55 Kms/hr at 1500 rpms?? with Shell diesel Ultra,and tires at 35 lbs.
    Please tell us we want to know...
    I have been noticing that my mileage is slowly increasing as she breaks in.I am at 32,000 Kms.30 -32mpg , 800 kms to a tank..
    peace ...
    Lightnin3
  • anomiousanomious Member Posts: 170
    You should work for the fed!

    Two of the five Alenzas listed are "B" rated, the "S" rated ones and a specific 22" low profile one. The other three are "A" rated
    The Goodyear ST's , except for two 15" sizes are rated "B"...
    Lets not color the data! Let the "actual" facts speak for themselves.
    The Goodyear ST is near the bottom of the Tire Rack chart. :shades: LK
  • vtdogvtdog Member Posts: 163
    I tossed the OEM ST tires due to hydroplaning and lack of traction (i.e. complete slipping) in snow. I put on Michelin LTX M/S @ 245/70/16 and could not be more pleased. The ST tires (as I have said before) are not only awful, they are dangerous.
  • steverstever Guest Posts: 52,454
    Don't forget the grain of salt:

    "Unfortunately for all of the money spent to test, brand and label the tires sold in the United States, the Uniform Tire Quality Grade Standards have not fully met their original goal of clearly informing consumers about the capabilities of their tires. Maybe it's because tires are so complex and their uses can be so varied, that the grades don't always reflect their actual performance in real world use."

    The Tire Rack

    The treadwear numbers are perhaps the least helpful.

    Steve, Host
  • bhcs111bhcs111 Member Posts: 26
    You have the right to say the tires do you fine for the way you use your Liberty. But when you live in Iowa, farm 1800 acres and raise 10,000 head of hogs and need a vehicle that can be used to go out into a corn field, and remember the Liberty is trail rated, You don't want a tire that goes flat from corn stalks going through the tires. Most of the miles from my Liberty are put on driving on limestone gravel roads and highways, but needs to go out to a field in the spring and fall. Thats why I bought the jeep because it is built tougher than any thing else its size and gets great fuel mileage. Most tires we buy for the farm vehicles don't last on gravel roads anyway. We only get about 20,000 miles out of a set of tires that are on gravel all the time. But the good year ST's on the Liberty are not made for the way we use our vehicles in Iowa. But enough on tires.

    I'm glad to see you are having good luck with your diesel. I have one that come off the line on 1-24-05. And I haven't had the EGR problems our anything the others are having. I had the loose hose problem and they fixed that and then reflashed the computer. I'm getting in the cold Iowa winters about 23 to 30 miles to the gallon. Just depends on what the weather is and the way I'm using the Liberty. In Iowa we have to look three places for people during a winter storm home, grocery store and the ditch. :)
  • ttandjjttandjj Member Posts: 21
    That's right, forgot about the ditch. Also, didn't realize that corn stalks could puncture a tire. I guess I'm one of them city slicker types or suburbanite. Have alot of respect for farmers. Take care.
  • bhcs111bhcs111 Member Posts: 26
    There are a lot of times I wish I was one of them cityslickers. But we have to feed all you city folks... I'm glad some of you respect us farmers. Alot of our neighbors don't have any respect for us. they don't like hte smell of our pigs.

    Corn stalks can really mess up a tire in the fall after they have dried out. Well better stop talking about pigs and respect this is a liberty forum.

    Do you have to keep tightening the hoses or did they just miss some the first time? Mine haven't came loose again. I have been checking them everytime I change oil. I found out mine were loose when the engine light came on and it started leaking oil.
  • laidslaids Member Posts: 3
    I bought my CDR in July 05, have 7000 miles on it now, I have not noticed any performance problems but the mileage has gone down to about 20 mpg latley, mostly city driving. Does this sound like EGR issues? I have heard of blocking off the the EGR , has anyone tried this?
  • faroutfarout Member Posts: 1,609
    I suppose there are some drivers for whom the ST tires work out just fine, and it speaks well of Goodyear that you are pleased, and the tires work for you. Your wisdom is evident by the fact you choose a CRD, and that too speaks well for you as well. However Goodyear makes a variety of tires and there are reasons that they have a wide choice of tires. I live in a rural area that we get ice and snow. Often the snow is over the ice, not a pretty sight, a Jeep Liberty CRD going sideways down a steep hill. So to add protection and for the safety of my bride of 37 years, I felt the ST tires were not designed for my driving enviorement. I did replace my ST tires with Goodyear Wrangler Silent Armor tires. A B and rated at 520. This tire was designed for my driving conditions, and for my specific use' s.
    I believe my experience, and motto of safety first is a wise one. I would never accuse anyone of of improper driving habits to justify why I chose to keep OE tires on. Perhaps you (ttandjj) are a real cheap skate and refuse to become informed? I am sure you would not want anyone to assume the worst of you, and neither should you assume the worst in others not liking the OE ST tires. Merry Holidays.

    Farout
  • derbs24derbs24 Member Posts: 17
    Did you notice a difference driving on icy roads? The ST's really impressed me in the snow, but I suppose it has a lot to do with the aggressive tread(for a little suv) and type of snow. I haven't driven on much ice yet...just curious.
    Long live the CRD
    Derbs
  • derbs24derbs24 Member Posts: 17
    I agree, they are paying the ultimate price right now. I like Ford and Chevy both, but they seem to be chasing the trend rather than setting it...especially GM(Ford did well with the Mustang)
    I have never been a big Chrysler fan, but with vehicles like the Viper, PT Cruiser, Charger/300M/Magnum(plus the "HEMI" campaign) and our little diesel Liberty it hard to argue that Chrysler is not setting the trends. I bought a Jeep this time because I feel Chrysler deserves it by keeping me on my toes...I like that.
    I hope GM and Ford get it figured out soon, would be a shame to lose them.
  • ttandjjttandjj Member Posts: 21
    The two times my CRD was in the shop was:

    1. Power steering hose was loose, lost all power steering fluid. No harm.
    2. Turbo inlet hose "popped off". Towed, replaced, oil topped off and runs fine.

    I have noticed a little drop in mileage this winter. I kinda expect it though. No oil leaks other than above. Can't really complain.

    Pigs are stinky. But, damn good eating in the morning. Thanks for keeping me fed.
  • ttandjjttandjj Member Posts: 21
    Didn't think I was accusing him of any improrper driving habits. Just said maybe. I can't imagine hydroplaning at 30 mph with this vehicle and OEM tires. I can't imaging sliding all over the place with these tires. I have tried to lay some rubber on the road. I can't do it, unless I break traction by means of abrubt turning or using ice patches, mud or snow. I had a 1966 Chevelle SS that would burn-up a set of tires sitting still. (It was all stock) Shoulda kept this one. I had a 2004 GMC truck that would leave about 100 feet of dual marks. Can't do this in my Libby. The diesel has some turbo lag that won't allow me to do this. I know the other two vehicles are gasoline powered and not good for comparison. The only diesel powered vehicle that I've ever left four sets of rubber tracks to the road was a 1995 Pierce firetruck with an 8V92 Detroit and an empty tank of water. Left about 20 feet of quality Goodyear rubber on one of Virginia's highways. Finally, I never assume anything of others. To assume makes an [non-permissible content removed] outta u and me. Happy Holidays.

    The T
  • caribou1caribou1 Member Posts: 1,354
    You may not be able to burn out your tires with the CRD but I rotate my 5 tires every 5,000 miles and measure them afterwards. I found that the rear tire on the driver's side wears more than the others. Thread wear gets even on all wheels when the 5th rotation is done. This should mean that the differential locking occurs on the passenger's side when needed, and explains why the rear end of the truck always slides to the right on a slippery surface.
    Have you noticed this on yours?
  • winter2winter2 Member Posts: 1,801
    I check hoses weekly when I check oil and fluid levels. Only takes a few extra minutes. Snugged a bunch of them down the day after I got the CRD, and repositioned some of the clamps to keep them from rubbing against, hoses or wire harnesses. Never had an oil leak. Been to the dealer once for a re-flash of the computer after the CRD died on the road and went into limp in mode (586 miles). Other than that, it has been perfect. EGR valve is a non-issue as I "blow it's nose" at least weekly.

    I appreciate all of your work as a farmer. Had an uncle who had a dairy farm in CT some years ago. I use to help out from time to time. Tough hard work. I know how hard it is for you and I appreciate people like you.
  • winter2winter2 Member Posts: 1,801
    My previous vehicle, a Dodge Dakota 4X2 had a locking rear differential. On wet or slippery surfaces, the rear end use to skew off to the right when a little too much power was applied.

    As to tire rotation, the owners manual only shows using four of the tires. I asked the dealer about this and they only rotate the four tires.
  • pheffpheff Member Posts: 1
    I bought my CRD in June 05. I have the same issues. My check engine light came on and they replaced the EGR valve. Since that time my mileage has dropped to 20mpg or below. I realize their are many variables with mileage,add to that the winter cold etc....but this is frustrating. Also I do not get any heat out of this vehicle. Dealer says everything checks fine, but my heat is luke warm most but not all of the time and the temp gauge actually drops when the vehicle is in idle. Any suggestions on the mileage or heat issues? I want to love this vehicle, but it is getting difficult!
  • egregr Member Posts: 4
    you really cant block the egr. it will make the engine run lean & do damage.i really dont think there is an egr problem its poor assemly & poor techs
  • winter2winter2 Member Posts: 1,801
    Is the thermostat stuck open? Could also have air in the cooling system which means it was not purged properly after the EGR replacement. Also, try a different dealer if one is nearby.

    My CRD was built in early May. I can roast my self out of my CRD in 7 minutes, even in single digit cold.

    My mpgs are down too in the cold. This is normal.
  • caribou1caribou1 Member Posts: 1,354
    We are not allowed to use two tires of a different make on the same axle over here. When you want to get a different set of tires and buy only 4, you face the eventuality of having mixed tires in case of a flat or you keep a single new tire (the old spare) in the garage and buy 5 :confuse:
    I feel rotating by 5 is practical and you get a set that is 'evenly roasted' by the sun!
    Rotation time is also brake inspection and oiling time for all hinges. I think in a near future I should get 8 spots of oil stain around the truck but none underneath! :shades:
  • caribou1caribou1 Member Posts: 1,354
    You should perhaps also check the water mixing valve or 'heater button'.
    To purge the eventual air trapped in the system, there is a simple way using an old vacuum cleaner or vacuum pump if you have one under hand. Stop the engine, let it rest and outgas (make it's bubbles). Remove the coolant filler cap. If you apply continuous light succion to the coolant reservoir where the cap sits, you will be able to bring the air out after a few minutes. Don't forget to pinch the overpressure release hose that's connected where the cap sits. This principle is used for filling all types of circuits when there is liquid conflicting with emprisonned gas.
  • faroutfarout Member Posts: 1,609
    The only time this year we have had any ice, it was just so little I believe any tire would have had no problem. However I know it's soon to be here this winter. So far it looks like a colder, more snow winter. My wife and I love snow! Most people here are not as nuts about snow as we are. I did check out the Wrangler Silent Armor and it's too new to have a rating, you can see how Goodyear rates it on their web site. Merry Christmas!

    Farout
  • northernbc2northernbc2 Member Posts: 1
    We are just in the process of buying a Jeep Liberty Diesel 2006. On the Information we were sent, it says "Goodyear Brand Tires". Is this the ST that everyone here is talking about.

    I told the dealership that I was not happy with the last Goodyear tires, that we had on our other 1500 dodge, and it seems like they had the cheapest of everything (shocks etc) on the last 3500 we had, ..

    What brand of Goodyear is a higher end tire? What should I be asking them?
  • faroutfarout Member Posts: 1,609
    pheff: If I let my CRD idle for as long 20 minutes in the early mornings is is a waste of time. When I get in it and drive less than 1/2 a mile its warm and hear gauge says half way. Perhaps a piece of cardboard in front on the radiator would warm it up as not to get in a cold seat. So perhaps others will chime in and tell us how they are getting a warm up before leaving in the cold. Merry Christmas.

    Far4out
  • faroutfarout Member Posts: 1,609
    northernbc2:I am not sure you can change much as far as what the factory sends you. However, the dealer I bought mine from was willing to up sell with my tires in trade, but the difference was more that the near by tire shop that can get GoodYear tires. At 300 miles I changed tires. I have GoodYear Wrangler Silent Armor tires. Pretty aggressive tread, yet very quiet on the road. They are a very new tire and run about $160. a each. I paid $410. plus my ST tires. When the ST's were taken off you can feel how light and flimsy they are. They are a light passenger tire and that's what CD wants to keep the price if the Jeeps down. The ST is almost the bottom end tire. Hope this helps. Merry Christmas.

    Farout
  • faroutfarout Member Posts: 1,609
    unclebubba: Thanks a lot! I found 5 qts Mobil 1 syn. at Walleyes World for $20.17 which is much better. In fact they will do an oil and filter change for about $34. which means by by dealer for oil changes (they charge $75 + tax and evo fee. Merry Christmas.

    Farout
  • faroutfarout Member Posts: 1,609
    My cruse control kicks out at the bottom of a big dip in the road. It kicks just as it starts to climb. I took it to the dealer 3 times. They called Star and Star says they have had no other problem like this. I find it rather hard to believe this. Star says they don't know what to do. The dips I have problems wit are not big, and not very steep. The trans shifts down as it should, and gains very little speed. Sure would be grateful for any suggestions.

    Farout
  • faroutfarout Member Posts: 1,609
    Is it true that CRD should use no more bio diesel than B-5? Dealer says this.

    Farout
  • winter2winter2 Member Posts: 1,801
    You can always mail order your tires from tirerack.com. They have good reviews and are reasonably priced. I got my dealer to buy back the tires on my CRD for $60 each.

    My experience with Goodyear tires has been less than exemplary, so I am cynical about anything they make. In tirerack most Goodyear tires do not get good ratings by their users/reviewers.
  • winter2winter2 Member Posts: 1,801
    It is in the owners manual. Forgot the page number but I have seen it.

    CRD engines will run on B-20 (has been tested). Some users here have run their CRDs on B-20 without a problem. I have done a tank of B-15 myself and the CRD ran quite well.

    The reason DCX wants you to stick to B-5 is because of standardization issues with the biodiesel (so I understand).
  • faroutfarout Member Posts: 1,609
    Thanks for the response. However I talked with the Toledo CRD Liberty tec. DC DOES NOT ENCOURAGE THE USE OF BIO FUELS. I was told they pretty much have to put B-5 in because of state pressure as Ohio is a corn producing state and it is a because of this they come with B-5. I was told that there is a serious problem with bio diesel and the fuel pressure switch, which has had problems, and is very costly to replace. I was told never to use Bio unless there was nothing else. Bio does not lubercate as we have been misled to believe.
    The very reason you state to use diesel is the exact reason they DO NOT RECOMMEND BIO DIESEL. I am sure this may seem confusing, at least it did to me. I will add the only additive DC said should be is an anti-gel is very cold temps. They also said the heater should not be needed until the teens, if then.
    You are correct that the owners book does say B-5 is acceptable. So please DO NOT CONSIDER THAT I AM TRYING TO MAKE YOU OUT TO BE A BAD PERSON. THIS IS JUST HOW MUCH WRONG INFORMATION IS PASSED ON FROM WHAT DC ACTUALLY SAYS.
    I was also told soon we will see the Grand C. get a diesel 6 cyl. Time will tell. Merry Christmas Winter2.

    Farout
  • anomiousanomious Member Posts: 170
    Hi! There is some kind of switch or sensor that tells the cruise control when you hit the brakes. If it's set up "Too close or sensitive" a slight movement of the pedal due to it's weight might disable the cruise. Might be worth checking... good luck with it. LK :confuse:
  • winter2winter2 Member Posts: 1,801
    Funny that DC would state that you can use B-5 and then someone says you cannot. I am surprised that DC has not written us to tell us this.

    Biodiesel has some interesting properties including being one heck of a solvent/cleaner. It is possible that the biodiesel is attacking the seal on this fuel pressure switch causing to fail. As to the lubricity issue, I would need to see data on that. Too many diesel fleets have used biodiesel blends successfully without a single hiccough. I do not use biodiesel blends all that often because of an availability and location issue.

    I will ask my local dealer about this. I am really curious.

    Have a great Holiday season!
  • tired_old_davetired_old_dave Member Posts: 710
    Have you bought yet. Even though you referenced only DC products, if you have an open mind, please lurk at all the jeep only sites. In addition to everything here, there is a report of a 2005 liberty ball joint failure and a link to a Moog replacement part describing their take on the DC ball joint issue that made big time tv news.

    And remember, some are waiting for next summer and round two of the heating issue, not believing the temp guage needs recalibrated answer.

    If nothing else you probably will get better and better deals next year until a lot of plants have closed and inventory dries up for all American brands.

    Why did CRD's sit on lots? Why did DC have to put incentives on a very limited production run? Don't get confused by the numbers sold as reported by DC. When a unit ships from the factory it is a sold unit to DC even though a dealer has to buy/floor plan it until the retail sale is completed.
  • siberiasiberia Member Posts: 520
    One of the tasks of the OBDII (onboard diagnostics system) is to verify that the EGR valve is performing properly. One (cheaper) method of verification (I don’t know what method the CRD uses) is to deliberately open the EGR valve under certain conditions and measure the reading on an array of sensors and compare those readings to a baseline (stored values or a moving average before the EGR was deliberately opened). This happens during every drive cycle if the proper conditions are met.

    Consider the following example operating conditions (not a CRD specific list):

    •Engine temperature more than 170 F.
    •Ambient air temperature more than 20 F.
    •Engine run time more than three minutes since 170 F.
    •Engine speed 2248-2688 (auto. trans.), 1952-2400 (manual trans.).
    •Manifold absolute pressure from 5-20 hg.
    •Short Term Adaptive Fuel Trim is adjusting pulse width by less than +7 percent and more than -8 percent.
    •TP sensor from 0.6 to 1.8 volts.
    •Vehicle speed sensor more than 40 mph.

    Deliberately opening the EGR valve in this manner can cause a miss (or perhaps a jerk) that is felt by the driver. Does anyone know how the CRD OBDII performs the EGR test? What few times I had jerking it was only under certain conditions that I don’t repeat very often.

    Now comes the leaking turbo boost hose. When a turbo hose is leaking at the boost side of a turbo there is more air going in to the intake side of the turbo relative to when it is not leaking (duh!). The mass airflow sensor sees more airflow and sends more fuel to the engine at a time when the boost is not as high as it should be. The engine speeds up with less turbo boost than should occur and runs less efficiently than it would otherwise, getting worse mileage than it should.

    What happens if the OBDII runs an EGR test while this is happening? Does it show up as a bad EGR valve? Some brands and models use additional sensors to test the EGR valve by taking pressure readings above and below the valve.

    Contrary to common belief, a precisely controlled EGR valve can actually increase performance and economy by reducing the combustion chamber temperature allowing the timing (spark or fuel) to be more advanced. If a turbo boost hose is leaking does this also reduce the cooling effect of the EGR valve preventing the timing from being fully advanced, further degrading fuel economy?

    I throw this out for discussion after reading a lot of technical sites that relate to EGR valves but not specifically the CRD EGR valve. I don’t know if any of this applies to the CRD in the way stated and I apologize in advance for wasting space on the forum if it does not. But if it does, it is a real shame that some are having trouble and might even be dumping their CRDs because of something as simple as a leaky turbo hose.
  • anomiousanomious Member Posts: 170
    Hi! Thanks for the post! Waste as much space as you like. LK :)
  • bhcs111bhcs111 Member Posts: 26
    I will bet that you have a bad thermostat. I just had mine replaced about two weeks ago. Mine was doing the same thing yours is doing. Mileage I have only had low mileage when the OBD light came on and told me low boost presure and it was a loose boost hose. Hope this helps.
  • winter2winter2 Member Posts: 1,801
    Even though your entry is long, you give a reasonable explanation as to why EGR valves might be failing. The day after I got my CRD home, I was under the hood looking at things and found the placement of certain clamps questionable. I repositioned those and in examining others found one or two that were marginally snug. I spent the next 30 minutes after that examining every hose clamp I could access and snugged down quite a few, repositioned several more. I now check the air induction hose clamps weekly and the rest monthly.

    Another issue I ran across was air in the fuel injection system from the factory. I had to purge the system a few times to get all of the air out as I had some jerking when cold. I learned that you cannot fill the CRD with fuel while the engine is running as you will get air in the system, not a good thing.

    To anyone who owns a CRD, I would take the time to look at the hoses and their associated clamps and make sure that they are really snug. This might save you a head ache in the long run.
  • whitgallmanwhitgallman Member Posts: 121
    5% biodiesel oxygenates the diesel fuel making it burn cleaner.
  • patentguypatentguy Member Posts: 45
    I have 9,000 miles on my CRD. My check engine light came on the other day (Monday). The car ran fine with no problems, but I made an appointment to bring it in anyway. Tuesday night the check engine light went off. I brought the car in Wednesday morning. They retrieved the fault code P0504. They said it related to my brake lights. They did a number of diagnostic tests, conversed back and forth with STAR, and found no problems.

    Their conclusion was that the fault code/check engine light was tripped accidentally.

    Otherwise, I have had no problems with my CRD.
  • siberiasiberia Member Posts: 520
    Excellent advice Winter2, I still have some places I have not checked for tight seal.

    I left something out on the earlier post. Newer model EGR valves are electrically modulated and indexed for precise control by the computer. Early models of this type could close on a chunk of carbon and the index would show open when the computer was set in the closed position causing a defect code. It would stay that way until removed and cleaned so it could close. The cure that was developed was to periodically or under certain conditions have the computer fully open the EGR valve to “blow” out the carbon and re-establish the index.

    I was surprised to find that virtually every car manufacturer (including the Japanese) has had a variety of non trivial difficulties with EGR valves related to function and diagnosis. It’s not just a CRD problem.

    Also, on the earlier post I may have something backwards. If the CRD has a manifold absolute pressure sensor rather than a mass airflow sensor that changes the fuel delivery relative to the throttle position, then a loose hose might be providing less fuel than needed. Once again, timing might be affected and efficiency reduced.

    All of this points to how very important it is to have all of the air systems tightly sealed on this engine and you have been saying this since day one, Winter2.
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