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Steve
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Subliminal
1. On a cold start there is some soft lifter noise for the first minute or so. It is not a pronounced tap (like I have heard on some older vehicles) but more of a muffled noise. It subsides and is completely gone in a minute or so. Is this normal?
2. Occasionally, the vehicle seems to hesitate for a split second before moving forward or resuming acceleration. This happens on pulling away from a dead stop in 1st gear, and occasionally during an upshift from a higher gear. It happens somewhat infrequently and is fairly subtle. It seems more like a transmission hesitation than an engine hesitation. I cannot tie it to any event or specific set of conditions. Does anyone know what this could be?
3. Occasionally, the engine sounds rougher or throatier than normal when under load during acceleration. When this happens, it sounds like you can hear all eight cylinders (like you might expect from an older car). Normally, the engine is loud but smoother sounding. It seems like this happens when the ambient temperature is higher. When the engine sounds this way, it seems like I might also have slightly less power.
4. I am burning some oil. I dropped three-fourths of a quart in 3000 miles. I assume this is still in the normal range. I have a 95 Nissan Maxima that I never put a drop of oil in, so I guess I am spoiled.
All comments are welcomed.
Rick
1. On a cold start there is some soft lifter noise for the first minute or so. It is not a pronounced tap (like I have heard on some alder vehicles) but more of a muffled noise. It subsides and is completely gone in a minute or so. Is this normal?
I do not know if this is normal but I to have some lifter noise when I do a cold start. It goes away in a few minutes and I am not that concerned because I was given a 75,000 mile five year warranty due to a oil line failure that occurred the day I brought my Suburban home.
2. Occasionally, the vehicle seems to hesitate for a split second before moving forward or resuming acceleration. This happens on pulling away from a dead stop in 1st gear, and occasionally during an upshift from a higher gear. It happens somewhat infrequently and is fairly subtle. It seems more like a transmission hesitation than an engine hesitation. I cannot tie it to any event or specific set of conditions. Does anyone know what this could be?
I have not experienced any hesitation under any conditions. One thing that I can honestly say about this engine is that it impressive acceleration and torque from idle to 4500 RPM's.
3. Occasionally, the engine sounds rougher or throatier than normal when under load during acceleration. When this happens, it sounds like you can hear all eight cylinders (like you might expect from an older car). Normally, the engine is loud but soother sounding. It seems like this happens when the ambient temperature is higher. When the engine sounds this way, it seems like I might also have slightly less power.
I have not experienced this problem either.
4. I am burning some oil. I dropped three-fourths of a quart in 3000 miles. I assume this is still in the normal range. I have a 95 Nissan Maxima that I never put a drop of oil in, so I guess I am spoiled.
I have never had to add oil. I get my oil changed by the dealer (thanks to a free 3 YR 36,000 mile maintenance plan for the same problem mentioned above) every 3000 miles.
I would have your engine checked for the acceleration issue and the excessive noise under a load. This does not seem normal
2. Split second hesitation: I have experienced this a couple of times. My foot is off the brake, I give the car a little gas, the engine speed increases but I go nowhere for about a second. Kind of like the car is on rollers but the tires aren't moving. I was on dry level surfaces with a warm vehicle. My guess would be the computer that controls the transmission is on holiday for a second or two and needs an update from GM.
3. Throaty sound: Don't know if I've heard that.
4. Oil consumption: 2 quarts added first 4000 miles. None next 4000 miles.
( Garage Door Opener )
Have you tried using the GDO in both positions of the Valet Switch?
The removal of the short overhead console is described on page 8-1436. Only one screw holds the unit in place. It is located in the forward end of the console.
You can not find the term valet switch in the index of volume 5 of the service manual. There is not one wiring diagram which lists Home link transmitter as a wired item nor does one connector show a lead identified as a Home Link Transmitter Lead.
Not sure but I think this item is powered through the INT PRK fuse which is rated at 10 amp. If this fuse was blown you would lose several small light circuits. A connector may have come apart inside the overhead short console. Again only one screw supports this device - other end is held in place by two small tabs which plug in to the headliner. Please advise of the wire colors IF you drop the console to check for a lose connector or broken wire.
Good Luck Don.
We have located a 2000 Yukon XL SLT that we are interested in buying just across the border in Canada. It is being sold at a GMC dealer who originally sold the vehicle as new to the one owner. ( He traded it in on a motorhome)
It has all we've been looking for... quad buckets, liftgate, 1/2 ton... except the sunroof! Has anyone added an aftermarket sunroof on the Yukon XL? Cost ideas/problems, etc...?
Also, has anyone done any buying across the border? This dealer doesn't usually change the odometer over unless he's dealing with another dealer... All the dealers around me locally say to be sure and have it changed...???
The price is better than we could buy it for here... and we can't seem to find the quad buckets in the color we're looking for. This one is pewter which isn't my favorite... but it's alright. We'd rather have the maroon, navy, or green with the pewter underneath.
Anyway... any ideas in how to proceed with these issues would be greatly appreciated!
Thanks!
It's been a while since I have posted. With 2 small kids forgive me if this has been covered before. We are looking for a tv/vcr that others would recommend. I am tempted to buy a 9 inch tv/vcr ac/dc model and put it between the rear seats on our 2000 xl. Does anyone know if and or how I could hook this up to the rear audio controls? Thanks, Carl
I feel some hesitation when I first start to move off, but to me it feels like the engine/trans. is haveing a hard time getting the weight moving. I notice this pulling my boat out at the ramp. Once moving, it feels like a D8 Cat.
Gas mileage: 6 or 7 around town, short trips, 7.7 pulling 8000 LB boat and trailer, flat land, 225 mile trip. Hiway, 12-13.5. (Very disappoint-ing.)
If I was buying a new 2500, I would not accept Firestone tires. I only got $25 per tire, trading up to Michelins 245/75 to 265/75 at over $800 for the Michelins. Most flustraing to me, two GM dealers have been unable to use the "Tech 2" to correct the 4% error on the speedometer with the increased tire size. The problem caused is that in Tow/Haul, the truck will not go into overdrive until it reads 55 on the speedometer. That means that I have to drive almost 58 MPH to get into overdrive. Sometimes a problem on tow lane traveled roads. Also, I never expected the lost of power and the effect of keeping it in overdrive with the new tires, only 1.3 inches larger in diamiter. Before, it stayed on overdrive over interstate overpasses, and now jumps out on small grades. I choose the 6.0 engine, thinking I would get better gas mileage than the 8.1. I hate to think the 8.1 would be worst.
Otherwise, very nice truck to drive (with autoride feature) and no problems so far. At over $60 per tank full, mileage is costly. MY .02
Skipjack 2
Thanks for the experience information. You characterized the hesitation problem much better than I did. It seems like the drive train is trying to overcome some type of inertia. I have already found myself checking the emergency brake to make sure it is not on. I didn't have this problem on my 1500, so it must be specific to the 2500 transmission.
I've only checked towing mileage with a 6630 lb (dry weight) travel trailer in tow, and it wasn't a precision check. On flat highway it was a little under 9 mpg. I do not think my 5.3 L. 1500 did much better. For highway travel I can cruise in 4th/OD at 65 mph and 2000 rpm almost all of the time with the 8.1L. I couldn't tow in 4th at all with the 5.3 L., so the engine was always running at 3000 rpm while cruising. I assume there is a tradeoff between engine speed and displacement when it comes to mileage.
Rick
I have written about the cold start problems with the 8.1 on this forum before. I have about 3500 miles on my 2500 Suburban, and it still continues to clatter on start up. Very disturbing noise coming from a new vehicle that cost $43000. The dealer has no clue. Just says that the lighter weight piston is the culprit. They have been trying to get some help from GM technical assistance with no success. They say it is not doing any damage and does not effect engine performance or longevity. RIGHT! Might have to pursue getting an extension on the warranty like whatever7.
Did have to add about 3/4 qt. of oil in first 2000 miles, but after first oil change at 3000 miles, have not had to add any.
Have not had any transmission hesitation problems. Did have a problem with a thunk coming from the drive line when coming to a stop. Lubing the spline with silicone lubricant helped this problem.
Mileage has been what I consider very good. Have been getting around 11.5 to 12 mpg around town and driving to work. About 14.5 interstate driving. About 9 mpg when towing 35' travel trailer. As good as my 96 with 454. I have the 3.73 rear end.
Power is great and don't have a problem with excessive noise that I've noticed.
Let us all know if your dealer has a fix for the cold start clatter problem.
Thanks.
We have a house in the mountains of Northern Arizona so we do a lot of mountain driving. My 95 is fine except for the non-Vortec, 60mph ax on some grades - I hate to be passed by new Fords!
I don't buy new cars so I am looking at 2000, 1999 (old style) and 98 Suburbans.
Would welcome input on pluses and minuses of old as new style. Also, are the 2001's improved enough to justify waiting for them to show up in the used market?
Thanks
The other one I was thinking about was the one that replaces you console cover and swivels. Has anyone seen this one?
Thanks, Carl
Steve
Host
Vans, SUVs and Aftermarket & Accessories Message Boards
Ken
Please contract me @ mch@mindspring.com with any information.
Thanks
Mase
Also I just want to say that this is a awesome truck, awesome pickup, I can't wait till I'm over my break-in period so I can really test it's power.
Jerry
having just leased a '01 'bourbon LT 4wd for my wife last month using the Loyalty rebate.. my old 'fishin' truck, my '99 'bourbon LT 4wd with 44K miles on it and with about 9+ months left on my lease may be going bye-bye also.. found out I can use that $1K Loyalty Rebate as many times as you want..so maybe another new 'bourbon??.. who knows.. something to think about..
Steve..Host.. If this pic is not permitted on this board, you can access it via this link at http://greengrouper.com/ggserver/ChevyLeaseend.jpg
I too hear a bit of noise when the engine
is cold - not alarming to me.
2. Occasionally, the vehicle seems to hesitate for a split second before moving forward or resuming acceleration. This happens on pulling away from a dead stop in 1st gear, and occasionally during an upshift from a higher gear. It happens somewhat infrequently and is fairly subtle. It seems more like a transmission hesitation than an engine hesitation. I cannot tie it to any event or specific set of conditions. Does anyone know what this could be?
I never notice it from a dead stop, but in
certain environmental conditions, I notice a
lag under full-throttle acceleration on the
shift at ~50-60mph. It seems to happen only
when the transmission and engine are cold. I
think that this is the torque management
electronics limiting torque (because the
transmission can't handle the full 8.1L
torque in some cases). All GM trucks cut
the torque during shifts, but it seems more
abrupt with the cold 8.1L. I think it is
probably normal, although they should be
able to make it better with a software
change (I consider it a software bug).
3. Occasionally, the engine sounds rougher or throatier than normal when under load during acceleration. When this happens, it sounds like you can hear all eight cylinders (like you might expect from an older car). Normally, the engine is loud but smoother sounding. It seems like this happens when the ambient temperature is higher. When the engine sounds this way, it seems like I might also have slightly less power.
This is the viscous cooling fan engaging when
the engine compartment is overheating.
Perfectly normal and expected for the large
engine on hot days. It is amazing how much
power the fan robs - there is a very noticeable
power loss.
4. I am burning some oil. I dropped three-fourths of a quart in 3000 miles. I assume this is still in the normal range. I have a 95 Nissan Maxima that I never put a drop of oil in, so I guess I am spoiled.
Mine isn't using much oil - unlike my previous
5.7L that drank it pretty quick. Probably just
luck of the draw. I think GM considers it
within spec for 1qt/3000 miles.
I believe the front pads have not "set" yet, has anyone else with this experence? Your comments would be appreciated.
I have tried three times to have my speedometer adjusted to the change in tires from 245's to 265/75/16's. The speedometer has remained, about 4% fast at 70 MPH. Now I'm told that this is normal range of error. Must have really been off with my old tires. Is it possible to get the correct speed reading with the on-board computer. I detailed the problem in an mail to Chev/GM web site. Just got referred to the service line and told to use the phone. So much for the site's request to "tell us about your new Chev"!! Any comments? Skipjack 2
John Naitove