Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN
344410017051Service vme-tcc surge or shudder, investigation of water intrusion into the transmission. *sc10/21/2005
3420A10017010Ping, pop or click noise from under the rear. *sc10/20/2005
313810011821Reduced power light on and diagnostic trouble code p1680 p1221 and or p1271 stored in the powertrain control module. *eh02/01/2005
322212/01/20073222D10010630Intermittent boom, rumbling noise at highway speed. *tt updated 2/27/08. *nj12/02/2004
30023002D100088024l60e/4l65e intermittent neutral condition while accelerating from a stop or while driving. *tt 1999-2006 gm cars, light duty trucks and utilities. *tt08/23/2004
0208601/01/2004100077824l60e, 4l65e intermittent neutral from a stop or steady speed. *tt07/12/2004
0203001/01/200410007750Ping, pop or click noise from the propeller shaft. service vme. *tt07/09/2004
0211701/01/200410007448Tccm will not program through tis. *mj06/23/2004
0159901/01/2004100072374l60e, 4l65e forward and low reverse waved steel clutch plate appearance change. *tt06/04/2004
0170701/01/200401707A10006406C0379 sets after overnight cold temperature start up. *tt05/03/2004
0171401/01/200410006412The 4l60e/4l65e automatic transmission may experience a leak, inoperative/slipping in 2nd, 3rd and 4th gears or no movement (no forward or reverse) due to excess fluid loss. sit bulletin 1455088. *tt05/03/2004
990730022A06/01/200399073002210002886Shift stabilization and tow/haul mode feature for hydra-matic 4l60-e/4l65-e and 4l80-e/4l85-e transmissions. *tt09/30/2003
POWER TRAIN - AUTOMATIC TRANSMISSION
PIP-3366-B11/01/201110043185Cadillac/chevrolet/gmc/hummer: some suvs and trucks are exhibiting a condition where by grinding/ratcheting type noise coming from automatic transmission when shifting into park while in 4wd low (4lo) range. *pe02/29/2012
05073003111/01/2005100187214l60-e automatic transmission torque converter clutch (tcc) shudder, water in transmission (repair transmission and replace transmission filler tube, level indicator and seal). *ak01/11/2006
351610017393Vibration felt and heard at low rpm during parking lot maneuvers. *tt11/04/2005
1120200311/20/200310013261Rattle noise underneath the vehicle or an automatic transmission fluid leak. *eh04/13/2005
04073004110/01/200410012732Service engine soon (ses) light on, diagnostic trouble code (dtc) p0741, harsh shift, cruise control inoperative. *tt03/11/2005
04073002205/01/200410012605Harsh garage shift from park to drive or from park to reverse with transmission fluid at cold ambient temperatures. *eh03/08/2005
04073003508/01/200410011217Release of rear transmission mount separate from exhaust mount. *tt01/11/2005
04073000201/01/200410011130Rattle type noise coming from under the vehicle. *tt01/03/2005
31703170C10010577Harsh 1-2 shift. *eh12/01/2004
31363136A10010080The 4l60e/4l65e automatic transmission slip condition in 2nd, 3rd, or 4th gear. also to include the pontiac gto 2005. *tc11/04/2004
0420200404/20/200410009227Harsh park to reverse or park to drive garage shift engagement especially when the transmission fluid is at a low ambient temperature. gm voicemail express. *tt09/17/2004
0165401/01/200401654A10007233Squawk or grunt noise that occurs on the 2-3 upshift on vehicles with 4l60e - m30, 4l60e m32 transmission. *tt06/04/2004
0197301/01/200410007213Harsh shifts from park to drive or drive to reverse (garage shift). worse in cold ambient temperatures. *nm06/03/2004
03073005611/01/2003100055664l60-e automatic transmission oil pump first and second design identification. *tt03/04/2004
0070201/01/200400702B10005476Slip condition in 2nd, 3rd or 4th damaged 2-4 band 3-4 clutch on the 4l60e/4l65e automatic transmission. *tt *mj03/01/2004
010730038B10/01/2005010730038C10005162The 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. *tt02/09/2004
0143201/01/200310004412Automatic transmission poor acceleration, performance. *tt12/05/2003
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
306112/01/20073061F10023773Dtc c0327 with or without additional dtc's setting. with four wheel drive (4wd) only. *nj01/31/2008
0148301/01/200410005496Vehicle has no pcm (power train control module) communication with tech 2. sit bulletin 1400427. *tt03/01/2004
POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES
PIT-472210/01/200810026804Gmc: fluid leak from transmission oil cooler lines due to corrosion. all 2000-2006 light duty trucks equipped with the light duty automatic transmission. *pe12/18/2008
0157301/01/200401573A10005419Rattle noise and/or transmission fluid leak from transmission cooler line contact with catalytic converter. *tt *mj02/25/2004
POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT
020730024A08/01/2005020730024B634999Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt10/11/2002
POWER TRAIN - AXLE ASSEMBLY
04041900102/01/200410012696Diagnostic trouble code (dtc) c0379 set, service 4wd light on, 4wd inoperative. *tt03/10/2005
313710010612Service 4wd light on and no communication with transfer case control module. *eh12/02/2004
317710010599Repeat front axle fluid leak. *eh12/01/2004
03041700212/01/2006030417002A10001111Whine noise from rear axle. *tt04/15/2003
03041900209/01/2004030419002A10001123Squeak, squeal or whistle noise from front axle. *tt04/15/2003
POWER TRAIN - DRIVELINE
04042100105/01/200410008503Delayed engagement of front wheels during a slip condition. *mj08/03/2004
POWER TRAIN - DRIVELINE - DRIVESHAFT
SB-070417001D05/01/200910030590General motors: a bump or thump noise is heard coming from the rear suspension or felt in the floor. the information affect vehicles with g67 automatic level control rear suspension. *pe10/23/2009
POWER TRAIN - MANUAL TRANSMISSION
31363136K10021019Slip condition in 2nd, 3rd, or 4th. damaged 2-4 or 3-4 clutch. *kb updated 10/31/07. *nj02/22/2007
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
04042100412/01/2004100174424wd switch indicator lights flashing, 4wd inoperative, diagnostic trouble codes c0327, p0550 set. *tt11/08/2005
05-04-21-00301/01/2008050421003C10017464Service 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 *pe11/08/2005
34243424A10017299Electronic transfer case unable to complete shift. *tt11/02/2005
335110014853Intermittent malfunction indicator lamp (mil) with diagnostic trouble code (dtc) c0374 or erratic 4wd/awd operation. *tt05/10/2005
0184301/01/200401843A10007961Calibration for improved transfer case operation in awd mode. *tt07/19/2004
020421006C03/01/2004020421006D10004357Inoperative 4wd/awd lamps, inoperative 4wd/awd system. *tt12/04/2003
03042100608/01/200310004367Service 4wd light on, 4wd inoperative, harsh engagement of 4wd, no communication with transfer case control module (tccm), tccm diagnostic trouble code (dtc) c0550 set. *tt12/04/2003
01446A01/01/200401446C10004255Service 4wd light on no codes besides u1000 codes. *tt11/24/2003
08110308/11/200310003863The service four-wheel drive light or the four-wheel drive is inoperative with no communications with the tech 2, or c0550 code is stored in the tccm. *tt11/05/2003

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN - AUTOMATIC TRANSMISSION
06/01/200944386209/01/2008
 Tl*the contact owns a 2004 gmc envoy. the contact stated that the speedometer and fuel gauge became inoperable. the dealer estimated that the repair would cost $500 at the contact's expense. on a separate occasion, the vehicle would only shift into first and second gear and would not accelerate over 35 mph. in addition, the rpms would rev higher than normal and the vehicle would hesitate when attempting to pick up speed. the contact heard a loud humming noise under the hood when attempting to accelerate. the dealer stated that a new transmission was needed. the repair would cost over $2,000. an independent mechanic stated that he could rebuild the transmission. the vehicle has not been repaired. the failure mileage was 44,386 updated 07/28/09 *bf the transmission failed at 58,000 miles. updated 07/31/09.*jb
10/21/2007570001
 Bought certified used envoy in october of 07. transmission completely stopped at 57k miles 3 months after purchase. check engine light comes on and off every couple days(have video, but sandy sansing of pensacola florida says there nothing wrong) vehicle jerks at stops and starts. after 3 trips to dealership w/ nothing wrong they finally decided that a o2 sensor was bad at 71k. envoy had been back in the shop at a cost of 80.00 bucks twice since then because of the check engine light and the brakes are failing, the abs brake light doesn't come on so they say it cant be the brakes. when trying to stop the brakes stop working and a second later they will catch and begin to stop vehicle, as if the brake system is obstructed and skips a few times. the check engine light flashes for those few seconds but doesn't stay on long and they say it isn't throwing any codes. problem doesn't happen everyday so the dealership has said its a unfounded problem. the thermostats assembly with other parts have been replaced. have all receipts and dates that i've taken this pos into the dealership. i will never buy another gmc vehicle. i have a 10 year old pickup truck also and has only been in the shop once. there's no excuse that we are driving these (expensive) unsafe vehicles!! *tr
02/15/200852450306/09/2004
 We complained about the transmission slipping at 33,000 miles and take it back to the dealer they say the checked the problem and replaced an electrical component, at 50k while my wife was driving on the highway at 65mph lost the power train. after much discussion and three weeks the dealer finally agreed to fix for 500 vice 3300 which they wanted. a week later the transmission is slipping again and now we lost power steering and the gas needle stopped working. i have left messages for the service manager at wiesner gmc in conroe tx and they have not returned any calls. i am now taking the vehicle to a different mechanic to tried to get it repaired. *tr
04/29/200764000306/15/2006
 I was driving in town and my speedometer stopped working at 0. the oil gauge is not working, pegged out at the max and my engine light is now constantly on. these events, particularly the speedometer not working, is a major safety hazard. not driving at controllable speeds can lead to an accident and death. the parts and labor to fix this problem is $550. while researching this problem on the internet, i've found out that this is a common problem with gmc's in this year. there should be a recall with the cluster unit on 2004 gmc envoys. gmc should try to prevent deaths that their products may create. *tr
07/30/2004130003
 When contact comes to a yield sign transmission jerks before going into gear. later he was told this was a brake problem. when approaching a hill/downhill and applying brakes they lock and car slides.*ak dozens of times check brake, service 4 wheel drive lights have come on. contact has taken vehicle to dealer over 12 times since it has been purchased. due service lights, brakes and transmission. consistently told by dealer that nothing is wrong. but dealer aknowledges check brake lights have come on. dealer states that if computer diagnostic does not produce an error code, then there is nothing they can do.
11/16/20042000309/10/2004
 1. engine will shut off when making a hard turn: after stopped at a stop sign, i was trying to make a hard turn (steering wheel reached the maximum turning angle) when the engine suddenly shut off itself. it happened three times either tuning left or right (today), but always after stopping and with a hard turning angle. it is such a huge safety defect with all the cars infront and behind you. no repair action has been taken. the problem may be reproduced. 2. turning signals not working after emergency lights used: it happened two times. turning signal lights (left or right) will not work correctly after the emergency lights were in use; instead both left and right turning lights will flash at the same time. it can be reproduced. no repair action taken yet. 3. difficult turning at a hard turn with 4-wheel-drive is on: it is almost impossible to make a hard turn when the 4-whell-drive is on. it happens every time. no repair action taken yet.*ak
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
01/01/19011
 There is a malfunction in consumer gmc envoy power train control module resulting in failure to accelerate. *ts *jb
04/22/20044
 2004 gmc envoy developed the following problems: vehicle stalled, turn signals stopped working, blower fan stopped working, and the srs light remains lit.*mr the turn siganls stopped working due to a short in the flasher. the powertrain control module was replaced due to the ses light iluminating. the blower motor fan failed 4 times due to a short in the wires and control head. the vehicle overheated, but the problem could not be diagnosed. the lcd displays, knobs become extremly hot after hours of driving. *jb
POWER TRAIN - CLUTCH ASSEMBLY
10/17/20059430301/01/2005
 Dt: the contact stated the service brake light illuminated in the dashboard. while driving the vehicle and pressing on the accelerator pedal the vehicle lost power. the vehicle was taken to the dealership for inspection, and they changed the fan clutch assembly. the vehicle is still under warranty .*ak
POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT
03/22/2008718381
 Tl*the contact owns a 2004 gmc envoy. while making a turn at 40 mph, the contact heard a loud boom and a grinding noise. she had the vehicle towed to her mechanic and then to the dealer. the dealer stated that the front driver side differential casing was cracked. the purchase date was unknown. the current and failure mileages were 71,838.
03/08/2007554531
 Tl* the contact owns a 2004 gmc envoy. while driving 55 mph, the driver heard a loud noise in the front of the vehicle. the gear shifts from normal to 4 wheel drive. the dealer informed the contact that the front differential was cracked and needed to be replaced. the vehicle was diagnosed for a second opinion and the mechanic agreed with the previous failure including that there was no oil in the differential. the contact stated that she has filed a complaint## 71-492693494 with the manufacturer. the contact can provide photos if needed. the dealer advised the contact the vehicle can be repaired for a fee. the current and failure mileage were 55453.
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
01/10/2004170010/24/2003
 Service 4wd light came one with 2500 miles on new 2004 gmc envoy. replaced actuator, then a control module on transfer case. was told neither fixed the problem. now told the transfer case must be replaced.