Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN | |||||
| 00773 | 10017190 | 4l60e, 4l65e replacement valve body gaskets does not seem to fit. *tt | 10/27/2005 | ||
| 3276 | 10013496 | 4l80e output carrier thrust washer changes. *tt | 04/20/2005 | ||
| 3054 | 01/01/2004 | 10009665 | Replacement flexplate may have larger bolt holes than the original flexplate. *tt | 10/14/2004 | |
| 3002 | 3002D | 10008802 | 4l60e/4l65e intermittent neutral condition while accelerating from a stop or while driving. *tt 1999-2006 gm cars, light duty trucks and utilities. *tt | 08/23/2004 | |
| 01599 | 01/01/2004 | 10007237 | 4l60e, 4l65e forward and low reverse waved steel clutch plate appearance change. *tt | 06/04/2004 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 10082002 | 10/08/2008 | 10013129 | Service engine soon light is illuminated and the vehicle may not start. diagnostic trouble code p0706, which relates to transmission range switch performance may be stored. *tt | 04/08/2005 | |
| 030730020C | 05/01/2005 | 030730020D | 10005578 | Transmission has a harsh 1-2 shift, slipping 1-2 shift followed by a harsh engagement. *tt | 03/04/2004 |
| 030730056 | 11/01/2003 | 10005566 | 4l60-e automatic transmission oil pump first and second design identification. *tt | 03/04/2004 | |
| 3259C | 3259E | 10005514 | 4l80e, 4l85e whine noise in first and second gear. *tt | 03/01/2004 | |
| 00702 | 01/01/2004 | 00702B | 10005476 | Slip condition in 2nd, 3rd or 4th damaged 2-4 band 3-4 clutch on the 4l60e/4l65e automatic transmission. *tt *mj | 03/01/2004 |
| 00559C | 01/01/2004 | 00559D | 10005485 | 4l80e, 4l85e automatic transmission diagnostic trouble code (dtc) p0706 and vehicle may not start. *tt | 03/01/2004 |
| 010730038B | 10/01/2005 | 010730038C | 10005162 | The service engine soon lamp is illuminated, no 3rd and 4th gear, the transmission does not shift correctly, the transmission feels like it shifts to neutral or a loss of drive occurs. *tt | 02/09/2004 |
| 00559B | 11/18/2003 | 10004265 | 4l80e/4l85e may set a diagnostic trouble code (dtc) p0706 (transmission range switch performance) and exhibit a no start condition. *tt | 11/24/2003 | |
| 030730020A | 06/01/2003 | 030730020 | 10002863 | Transmission has a harsh 1-2 shift, slipping 1-2 shift followed by a harsh engagement. *tt | 09/29/2003 |
| 030730020 | 05/01/2003 | 10002393 | Transmission has a harsh 1-2 shift, slipping 1-2 shift followed by a harsh engagement. *tt | 08/27/2003 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM) | |||||
| 01483 | 01/01/2004 | 10005496 | Vehicle has no pcm (power train control module) communication with tech 2. sit bulletin 1400427. *tt | 03/01/2004 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES | |||||
| PIT-4722 | 10/01/2008 | 10026804 | Gmc: fluid leak from transmission oil cooler lines due to corrosion. all 2000-2006 light duty trucks equipped with the light duty automatic transmission. *pe | 12/18/2008 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT | |||||
| 020730024A | 08/01/2005 | 020730024B | 634999 | Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt | 10/11/2002 |
| POWER TRAIN - AXLE ASSEMBLY | |||||
| 4030 | 4030A | 10021676 | New design front axle side bearing adjusters. *kb | 06/15/2007 | |
| 3364 | 10014953 | Rear axle retainer button breakage. *eh | 05/12/2005 | ||
| 3001 | 3001A | 10008872 | The service information and owners manual do not show a service interval for the 8.6, 9.5, 9.75, 10.5, and 11.5 inch rear axles with or without g80 (locking differential). *tt 2006 all general motors light duty trucks, vans and utilitie | 08/25/2004 | |
| 030419001A | 09/01/2004 | 030419001B | 10004717 | Use of synthetic front axle lubricant for 4wd vehicles sold in cold weather climates. *tt this bulletin replaced previous bulletin dated 10/01/2003. *tt | 01/02/2004 |
| 030419004 | 04/01/2004 | 030419004A | 10004366 | Growl or moan noise coming from front axle. *tt | 12/04/2003 |
| 030417001 | 06/01/2003 | 030417001A | 10002853 | Whine noise from rear axle. *tt | 09/26/2003 |
| 030418003 | 06/01/2003 | 10002854 | Revised wheel drive shaft inner joint and seal replacement. *tt | 09/26/2003 | |
| 030417001C | 10/01/2005 | 030417001D | 10001136 | Whine noise from rear axle. *tt update. *tt | 04/17/2003 |
| POWER TRAIN - DRIVELINE | |||||
| 3300 | 3300A | 10013572 | 4wd models with noise, vibration on dry pavement. *eh | 04/21/2005 | |
| 030419003 | 08/01/2003 | 10012557 | Fluid leak from front of vehicle add teflon tape to front axle vent plug threads. *eh | 03/07/2005 | |
| POWER TRAIN - DRIVELINE - DRIVESHAFT | |||||
| 040495001 | 03/01/2004 | 10008653 | Revised wheel drive shaft nut torque specification. *tt | 08/12/2004 | |
| POWER TRAIN - MANUAL TRANSMISSION | |||||
| 3136 | 3136K | 10021019 | Slip condition in 2nd, 3rd, or 4th. damaged 2-4 or 3-4 clutch. *kb updated 10/31/07. *nj | 02/22/2007 | |
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||||
| 3665 | 10018926 | 4wd inoperative and possible dtc c0327 stored in the transfer case control module. *tt | 01/24/2006 | ||
| 05-04-21-003 | 01/01/2008 | 050421003C | 10017464 | Service 4wd light illuminated, diagnostic trouble code (dtc) c0374 set. *tt updated 10/05/07. *nj inspect wiring harness to transfer case speed sensors, replace wiring harness. updated 7/18/08 *pe | 11/08/2005 |
| 3424 | 3424A | 10017299 | Electronic transfer case unable to complete shift. *tt | 11/02/2005 | |
| 3526 | 10016558 | Intermittent service 4wd light comes on with diagnostic trouble code (dtc) c0306 or c0308 stored in tccm. *tt | 09/22/2005 | ||
| 3351 | 10014853 | Intermittent malfunction indicator lamp (mil) with diagnostic trouble code (dtc) c0374 or erratic 4wd/awd operation. *tt | 05/10/2005 | ||
| 030421001D | 12/01/2003 | 030421001C | 10005166 | 4-wheel drive switch indicator lights flashing, 4-wheel drive inoperative, diagnostic trouble codes c0327, p0836, p0500. *tt | 02/10/2004 |
| 011603 | 01/16/2003 | 10005105 | Concerns with the service four-wheel drive light or the four-wheel drive is inoperative with a c0327 code stored in the tccm. gm voicemail express. *tt | 01/30/2004 | |
| 020421006C | 03/01/2004 | 020421006D | 10004357 | Inoperative 4wd/awd lamps, inoperative 4wd/awd system. *tt | 12/04/2003 |
| 01267B | 11/18/2003 | 10004200 | Service 4wd light on no codes besides u1000 codes. service vme. *tt | 11/21/2003 | |
| 01267A | 11/18/2003 | 10004104 | Service 4wd light on, the 4wd is inoperative and no codes besides u1000 codes. service vme. *tt | 11/18/2003 | |
| 030421001C | 06/01/2003 | 030421001B | 10002856 | 4-wheel drive switch indicator lights flashing, 4-wheel drive inoperative, diagnostic trouble codes c0327, p0836, p0500. *tt | 09/29/2003 |
| 030421001 | 02/01/2003 | 10001124 | 4-wheel drive light, 4-wheel drive inoperative, diagnostic trouble codes c0327, p0836, p0500. *tt | 04/15/2003 | |
| 020421006A | 10/01/2002 | 020421006 | 10000173 | Inoperative 4wd/awd lamps, inoperative 4wd/awd system. *tt | 02/14/2003 |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 01/20/2012 | 62000 | ||
| I have had several issues with my 2003 chevorlet avalanche z71 only 62,000 miles. my problems started around 8,000 miles with the rear brakes going bad. i have replaced the front and rear brakes four (4) times since i have owned it. the abs speed sensors have been replaced once and need replaced again. the speedometer is stuck at 120 mph, the u joits have been replaced and now the transmission has gone out. i feel that chevorlet should fix these problems under a warranty/recall. | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 02/17/2004 | 6 | ||
| Pick a problem. pin from transmission gears were too short from the manufacturer, causing the transmission to not shift properly. this repair was done at 8000 miles. 4 quarts. low on oil within month of changing. no leaks and no explanation from the dealer as to where the oil went. a/c functioned improperly after truck surged at traffic light. still no explanation. remote entry works when it wants to. interior lights pulse when truck idiling. heater motor functions according to speed of vehicle, slow when braking and speeds up when accelerating. drivers power window stopped functioning and started working the evening before taking it to the dealership for repair. popping noise from exhaust just after starting and shutting off. from inside the vehicle while running i continuously hear cooling fluids flowing. sometimes the horn does not function while the vehicle is turned off. braking has always been a problem from day one. always feels as there isn't enough brake pressure to stop in a normal distance. along with the remote entry not working the personal presets for driver 1 most of the time do not operate with the remote entry. i have to select driver 1 from the interior to engage settings. bed plastics are fading. buttons for radio on the steering wheel and radio are flaking. *ak | |||
| 09/09/2004 | 5000 | 3 | 09/23/2003 |
| 2003 chevrolet avalanche with harsh and suden unexpected down shifts. dealer has attemped repair several times without repairing the problem. when slowing in traffic or for a turn the transmission will downshift hard and clunk and bang as if something is going to break. this in my opinion is a safety hazard on slippery roads while making a turn as it could cause a spinout. last call from dealer the service manager read to me a tsb from chevrolet saying this was a normal condition and not to attempt a repair. not acceptable. i have been an auto tech for 38 years. i feel the transmission is shifting into 1st gear instead of 2nd when speed drops just below 20mph. this just may be a shift program problem, but what damage is being done to transmission over long term? *ak | |||
| 11/16/2004 | 14700 | 1 | 04/30/2003 |
| Transmission started making growling and whining noise while attemping to shift into 4th gear, then started slipping in 4th gear.shifting was also stiff or harsher than was normal for the vehicle prior to this. i took to dealer and was dismissed as their computer did not record any trouble codes. 1 week later, and only 65 miles travel distance, both 2nd and 4th gears completely failed, causing a complete overhaul and rebuild of transmission. vehicle had only 14, 700 miles on it when problem surfaced. dealership told me no known problems associated with this model vehicle.*ak | |||
| 02/15/2004 | 15000 | 1 | 02/06/2003 |
| The truck continued to shake when depressing the gas pedal. turns out the transmission was messed up. the dealer found lots of metal in the pan. rebuit the broken parts @ 15,000 miles not a new one just rebuilt. *ak | |||
| 12/15/2003 | 9000 | ||
| On december 12, 2003 vehicle stalled in the middle of an intersection, resulting in a crash that could have been fatal. consumer stated, this vehicle had been seven to eight times at dealer with engine and transmission problems. dealer could not duplicate or correct the problem.*ak | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT | |||
| 04/02/2004 | 1 | 04/10/2003 | |
| When ignition key is in accessory position and vehicle is in park, the brake/shifter interlock is disabled, allowing the shifter to be accidentally shifted into neutral. if the vehicle is on a slope vehicle immediately starts freewheeling downhill.*ak fortunately i was able to apply the brake and stop without incident... | |||
| POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT | |||
| 11/03/2007 | 34295 | 1 | 07/09/2003 |
| At a regular service interval, the chevrolet dealership informed me the front differential has a bad seal and needs to be replaced. this seems premature since the vehicle only has 34,000 miles on it. the dealer stated it was not a warranty repair due to time elapsed since purchased was over 36 months. *tr | |||
| POWER TRAIN - DRIVELINE - UNIVERSAL JOINT | |||
| 02/15/2006 | 55000 | 1 | 06/28/2003 |
| 2003 chevorlet avalanche 1500 - drive shaft universals failed (front gone, rear going. i had dealer replace both) - i noticed the noise and immediately took vehicle in. had i not noticed or could not pinpoint the cause i may have continued driving and it could have failed and failing while driving on the thruway would not have been a good thing as the front end of the driveshaft impacts the road. my concern is that when talking with gm customer service on more than one occasion the folks with whom i talked could not say whether gm had a data base on the average/mean failure time on the universals. i wanted to determine should i start concerning myself as i get to 100,000 miles, but they were unable to assist me. so i am writing you if you have had other universal failures around 50,000 miles. *jb | |||
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||
| 09/01/2004 | 15000 | 10 | 06/30/2003 |
| Service 4wd comes on and truck reverts to 2wd, dealer has reprogrammed a few times unable to correct. when traveling down icy roads with no notice. *nm | |||
| 10/21/2003 | 22000 | 6 | 05/10/2003 |
| 2003 chevrolet avalanche, driving down road service 4 wheel drive light comes on and vehicle is locked in all wheel drive, or 4 wheel drive.light has come on 6 times, dealer has inspected several times, and cannot duplicate the problem.no correction has been made so far.*ak | |||
| 02/07/2004 | 1 | 05/21/2003 | |
| A warning light stating service 4wd now appeared on my dash of my 2003. chevrolet avalanche. according to the owner's manaul, this indicates that there is a problem with the 4-wheel drive of my vehicle. upon inspection at the local chevrolet dealership, i was informed that there is a bulletin from gm stating not to do any repairs for this concern. my vehicle is now stuck in 2wd and gm does not know if or when they will be able to remedy this defect.*ak | |||
| 4 | |||
| While traveling error code light for 4-wheel drive came on. *ak | |||