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Chevy Tahoe Maintenance and Repair

Have 2004 1500 z71 w/off road packg.over even slight bumps it sounds like a broken shock nocking/thumping noise. I found when I push against the cross member that connects the torsion bars to the frame with my foot I get the noise . The dealer 2x says nothing wrong. It is obviously loud. rubber mounts don't look broken any others have the same problem out there ? thank you


  • jimg2jimg2 Posts: 3
    Have a 2004 1500ls when it shifts to 2nd sometimes it bangs in and other times it's fine. when i accelerate a little heavier it seems to shift 2x in second gear.I feel it shift to 2nd then a hesitation(not a slip)then I feel it catch. It seems as if there is 2 sets of 2nd gear clutch packs, one goes in then the other. dealer says within specs. no problem found any others out there with same problem? jim
  • My 2002 Z-71 recently started making a sound similar to an oil can popping. It almost sounds like it is coming from the gas tank. It makes the sound quite often even after the car is turned off. It's pretty loud too. Anyone had this problem before?
  • Another noise problem with my 2002 Tahoe Z-71 is the front end squeaks and is most noticeable at low speeds.
  • k71k71 Posts: 1
    Have a new '05 Z71 and have had difficulty with the memory seats. Neither the drivers side memory buttons (1 or 2) seem to maintain the saved setting, nor do the keys or remote. Wanted to see if anyone else is having a similar problem with the '05. Also wondering if I correct in assuming the the remote controls should be able to trigger the memory setting as well as the driver memory buttons - my understanding from the sales person.
  • mwkinneymwkinney Posts: 1
    I have a 2002 Tahoe also with the same type of noise. Have you found the solution yet?
  • mwoldmwold Posts: 2
    I too just purchased an '05 Z71 Tahoe. I have been able to have the memory buttons remember my seating positions.

    Whe I first looked at a Tahoe early last week, the salesman is the one who directly told me that the the remotes were labeled #1 and #2. And that when Driver #1 used Remote #1 that the Tahoe would use Driver Memory #1. And the same for the #2 drive/remote/memory. But I'll be damned if I can make it work or find any reference to it in the manual.

    If you find any informaiton on this, please let me know.
    M. Wold
    Elburn, IL
    mark.wold - at -
  • mitzijmitzij Posts: 613
    Memory Seat
    (buttons located on driver's door, round, marked 1 and 2)
    These buttons are used to program and recall memory settings for the driver's seat, throttle and brake pedals and both the driver's and passenger's outside mirrors. The settings for these features can be saved for up to two drivers.

    To store the settings, do the following:

    While the vehicle is in PARK (P), adjust the driver's seat, including the seatback recliner, lumbar, and side wing area, throttle and brake pedals and both of the outside mirrors to your preference.
    Press and hold the 1 or 2 button of the memory control for three seconds. A double chime will sound to let you know that the position has been stored.
    To repeat the procedure for a second driver, follow the preceding steps, but press the other numbered memory control button.

    Each time button 1 or 2 is pressed and released while the vehicle is in PARK (P), a single chime will sound and the memory position will be recalled.

    To stop recall movement of the memory seat feature at any time, press one of the memory buttons or power seat controls.

    Easy Exit Seat
    The controls for this memory function are located on the driver's door.

    (Easy Exit Seat):
    (oval button with picture of car and arrow)
    This button is used to program and recall the desired driver's seat position when exiting/entering the vehicle. The seat position can be saved for up to two drivers.

    To store the seat exit position, do the following:

    Press and release the 1 or 2 button. The seat will move to the stored memory position.
    Adjust the seat to the desired exit position.
    Press and hold the exit button of the memory control for three seconds. A double chime will sound to let you know that the position has been stored for the selected button (1 or 2).
    To repeat the procedure for a second driver, follow the preceding steps, but press the other numbered memory control button.

    To use the seat exit position, press the exit button on the memory control.

    I bugged the salesmen up front about the remotes. Newer Tahoes/Suburbans/Trailblazers do not have a connection between the remotes and seat memory. Now you have to push the button on the door to get the seat to move to your favorite position. They tell me it's been that way for a couple of years.
  • jimg2jimg2 Posts: 3
    With my truck, after the steering shaft was replaced something sqeaked at low lubed the bushing where the shaft goes thru the firewall.It squeaked again a few days later, I found it to be the emergency brake cable where it goes into the firewall.sounds like front end. WD40 and no squeak.
  • jad27jad27 Posts: 12
    I just got an '05 Envoy and was told the same thing from the dealer. Found out later that starting with the '05 model year, you cannot recall the memory seats using the remote, you MUST push the 1 or 2 on the door. This is VERY inconvenient and a BIG step backwards.

    Dealer also told me that enough people complained about this new "feature" on the escalade, and GM rewrote the software to include the recall from remote function. I have been complaining to GM for weeks now, hopefully they will fix it for my Envoy.
  • debri81debri81 Posts: 1
    GM says this is normal. It is your muffler. Mine did it for years.. I have a '01. Eventually it went away. A GM mechanic said he could replace the muffler but it would just be louder because the muffler was new. A design flaw. Nothing is wrong or dangerous. But I now what you mean. It is loud. I have two little ones and this made it annoying getting the sleeping beauties out of the car without waking up... ;-)
  • The noise you are hearing is coming from the muffler expanding and contracting. Some do it worse than others. Problem heard on both a 2001 GMC Yukon and a 2001 Chevy Tahoe.
  • kbaileykbailey Posts: 1
    I have the same problem on my 1995 Tahoe, how do you fix it?
  • I was wanting to install a set of lights on the rear end of my luggage rack on a 2002 tahoe z71. Can anyone tell me what kind of bulbs to use and if anyone has tried this before?
  • tsal54tsal54 Posts: 1
    I have a new Z71 and when I drive under 1500 rpm's pressing on the gas I feel scratchiness or something. I had a ford and at 76000 I have never felt that type of pressure. When we test drove tahoes the drive was ALWAYS smooth no heavy feeling when pressing the gas but this one feels totally different. Took it to the dealer service and they said as it aquires more miles and breaks itself in it will change. But he said he really didnt feel anything out of the ordinary. Im at over 500 miles and it still bothers me that I dont have a smooth quite ride.
  • 05z05z Posts: 1
    My 2005 Z71 heated seats worked fine for the 1st 3 months of use. Now they turn off 30 seconds after they have been turned on. Anyone have a similar problem/solution?

  • yoppsteryoppster Posts: 1
    Just traded my '02 Bravada with the "old feature" for a '05. I agree that pushing a button on the door is inane when the capability of programming the seat recall funtion activated by the remote is available. Did your dealer respond? Is there a service bulletine number?
  • jad27jad27 Posts: 12
    TSB number: 04-08-128-002 Sept 2004
    "Changes to personalization features"

    It just explains that they are trying to simplify the personalization and memory features starting in 2005. It goes on to say that this is an engineering change and no repairs should be attempted.

    All they have to do is update the software. I have called GMC and complained a few times. Hopefully enough people will complain and they will do something.

    The dealers response was that it was gone.... And also they told me that enough people already complained about the Escalade and they rewrote the software for it. Hopefully they do the same for us too.
  • aj76aj76 Posts: 3
    I have a 2003 Suburban with 40,000 mi. With the climate control on upon acceleration there is a rattling sound coming from the engine . It sounds like the fan hitting the shroud but I checked and there is full clearance. This does not happen with the a/c off. I suspect the compressor. The dealer has no clue and I am past warranty. Any ideas?
  • PS2PS2 Posts: 3
    I purchased a 2004 z 71 in Nov 2003. To this date I have had it in to shop multiple times for a clicking/ticking/engine knock. Noise is especially noticeable in the mornings after starting tahoe and letting it run for 5 minutes. I am being told that it is "normal" engine noise and that engines were built "looser". Anyone else out there haveing this problem? The engine sounds like it has a piston or lifter tapping/knocking. I know I wouldn't buy another one if the engine sounded like this one. Any suggestions would be appreciated. :confuse:
  • obyoneobyone Posts: 8,054
    Here ya is common on these motors and you are not alone. The dealer is repeating what he has been told to say.

    Engine - Knocking on Cold Start Explanation

    File In Section: 06 - Engine/Propulsion System

    Bulletin No.: 01-06-01-028A

    Date: March, 2003

    Engine Knock on Cold Start

    1999-2002 Chevrolet and GMC C/K Pickup and Utility Models
    2002 Cadillac Escalade (2WD)
    with 4.8L, 5.3L or 6.0L Engine (VINS V, T, Z, U - RPOs LR4, LM7, L59, LQ4)

    This bulletin is being revised to add an additional engine to the models section. Please discard Corporate Bulletin Number 01-06-01-028 (Section 06-Engine).

    Some of the above vehicles may exhibit an engine knock noise that begins in the first 19,000-24,000 km (12,000-15,000 mi) of use. The knock noise is most often noticed during initial start-up and typically disappears within the first 5-30 seconds (may last longer in extreme cold temperatures). The noise is usually more noticeable on the initial start-up when the temperature is below 10°C (50°F) and may be more pronounced on the first cold start following a long trip.

    This noise may be caused by an interaction between carbon that has formed on the piston, the piston motion and the cylinder wall. GM Powertrain Engineering, and an analysis of engines with this condition, has confirmed that the noise is not detrimental to the performance, reliability or durability of the engine.

    Important: At this time, attempts to repair this condition by replacing the engine assembly or pistons are not recommended.

    Please share the information found in this bulletin with customers who inquire about this condition. In the event they have additional questions or concerns, please advise your Area Service Manager.
  • xwesxxwesx Fairbanks, AlaskaPosts: 13,083
    I have a friend who owned a 1998 Silverado 1500 and it had this same ticking noise - not from new, but over the 5 years he had it the noise was there for the last three at least. He now has a 2003 Tahoe and it is quiet thus far.... Sorry I cannot help you diagnose it, but it did not seem to affect the vehicle's performance. The sound was VERY noticable though and normal or not, I would not prefer to have it. ;)
    2014 Audi Q7 TDI, 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup
  • PS2PS2 Posts: 3
    I just had my 2004 Z 71 in for service and was told there was a software update that would take care of the heated seats problem. My seats had started coming on on their own. After they updated the software haven't had the problem since. Might give your dealership a call. This update also supposedly took care of the "service 4WD message" that displays for no reason on occasion. I believe they also told me it was supposed to take care of the memory seat problem as well. Will keep you posted on whether the "bugs" come back. Hope this helps. :sick:
  • chevhdz71chevhdz71 Posts: 1
    Everytime I drive off road my truck will die on me and after an hour or so it starts right up then dies untill i get back on normal road i guess whenever it gets shookin up it dies has this happened to anyone else i need help fixin this i hate goin out in a field with buddies and my tahoe dies on the way out there
  • jkisnerjkisner Posts: 2
    I have a 2003 Tahoe with 41,000 miles with the same problem and the A/C for the rear compartment stopped working. All this happened on a drive back from Arizona to Los Angeles.

    I took it in and they said that a value was clogged and the noise is just the fuel injectors pulsating. Well, three days later, the A/C goes out and the noise is still there.

    Come to find it, the compressor it going out. Had to get it replaced today. $1300 later, ($500 a week ago and $800 today)
  • 5omike5omike Posts: 1
    I have put 500 miles on my new Tahoe LT and I hear a whining sound which increases as I accelerate 1st to 2nd gear, and diminishing in cruise. At times it is louder and I am not sure if this is normal or a precursor to more serious issues . I don't recall hearing this sound when test driving. I'm also hearing a periodic swooshing sound when my A/C is on, does not affect it's function but the sound is annoying. Could it be the compressor failing? I appreciate all advice, thanks.
  • 1k91k9 Posts: 1

    I am also having a squeak or rattle under the dash area of my 2003 Tahoe. Looked everywhere, can't find it. Exactly where did you lubricate the emergency brake cable? Is it under the carpet area? Thanks
  • jeff00jeff00 Posts: 1
    I am looking at a 2000 tahoe 7z1 with 54000 miles. I see on here that most problems start at 60,000. can someone tell me what I should look for. And what average gas mileage is everyone getting out there with the 5.7?

    Thanks Jeff
  • kcarkcar Posts: 1
    I am looking for feedback on why a Tahoe with 136,000 miles rear end would break apart. Just put two new tires on the front end but not the back. Had new pinion seal and exhaust system replaced. A few days later the truck would not drive and the mechanic said the rear end had broken apart. Where is best place to buy replacement?
  • utdmanutdman Posts: 1
    99 Tahoe
    When I start for the first time in the morning it will start and them cough and die. Time seems to fix it till the next morning
  • Does anyone know if you can add the XM Radio service to a radio that did not come with it...I want it to be just like the radio in the vehicle, but have the XM service as I just plug an antenna in to the back of the vehicle? I have a brand new 2005 Chevy Tahoe Z71 4x4 with the off-road package.
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