Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
04060300202/01/200410012703Diagnostic information for intermittent vehicle no crank dead battery. *eh03/10/2005
0122501/01/200401225A10007717Engine coolant leak at intake gasket. * mj07/08/2004
990602012D04/01/2002990602012C634218Subject regarding rust in cooling system, heater inoperative, blows cold air, engine overheats (flush cooling system). nlm09/28/2002
990602012C06/01/2001990602012B623086Some customers may comment that the heater is inoperative, blows cold air, engine may exhibit an overheat condition or the coolant reservoir has rust in it. *tt10/26/2001
990602012B02/01/2000990602012A611277Some customers may comment that the heater is inoperative, blows cold air, engine may exhibit an overheat condition or the coolant reservoir has rust in it. *tt05/31/2000
990602012A01/01/2000990602012609717Some customers may comment that the heater is inoperative, blows cold air, engine may exhibit an overheat condition or the coolant reservoir has rust in it. *tt04/07/2000
ENGINE AND ENGINE COOLING - ENGINE
0206801/01/200410007765No start with diagnostic trouble code (dtc) p1626 or p1631. also includes 1998-2004 chevrolet, gmc full size trucks/ utilities/ vans. *tt07/09/2004
03060102408/01/200310004371Rattle noise in engine. *tt12/04/2003
030601024A03/01/2004030601024B10004301Rattle noise in engine. *tt12/01/2003
000604003B02/01/2003000604003A10001298Rough idle after start, and/or a service engine soon (ses) light. various models including the 1995 chevrolet and gmc s/t models. *tt04/28/2003
866503A09/01/199886-65-03603825Subject regarding obd ii diagnostic trouble code (dtc) p1404 (reflash vcm). *yc03/08/1999
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
000601023A12/01/2001000601023628938Information used when diagnosing noise conditions such as engine rattle noise, spark knock at 2000 - 2500 rpm range, under a moderate to heavy load with a warmed up engine. *tt03/25/2002
000604003A12/01/2001000604003628905Some customers may comment on rough idle after start up, especially after setting overnight. *tt03/22/2002
00060401404/01/20006091427Some customers may comment on hard, no, or slow start, backfire or kickback during crank / start, grinding or unusual noises during crank, diagnostic trouble code p0338. *tt10/11/2000
876507A07/01/1998609582Rough idle after start, when vehicle has sat overnight and poppets sticking.04/04/2000
9877600206/01/1998601901Subject on accessory drive belt noise due to power steering pump pulley misalignment. *yc08/28/1998
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
02060500205/01/2002634729Some customers may comment on an exhaust boom / groan noise in the passenger compartment. *tt10/07/2002
01060500611/01/2001628393Subject regarding exhaust system rumble / rattle noise. *jg03/08/2002
31100110/31/2001628070Some vehicles may exhibit an exhaust noise, rattle noise at 550 rpm. *tt03/05/2002
86650307/01/1998615078Some vehicles may set a false obd ii with diagnostic trouble code p1404. *tt12/27/2000

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE AND ENGINE COOLING
03/09/20073510
 I purchased a used 1998 olds bravada. it has been an ok car except. the heater/air conditioner doesn't work properly. my dealer says you have to switch it back and forth from heat to cool in the dash somewhere (my question was, what is the thermostat button for then???). also, the transmission or motor at 3000 rpms cuts out bad and jumps and could cause an accident if you are in the passing zone when this happens. also, the dimmer switch doesn't work anymore. the windshield wipers do and the signals do but not the dimmer?? *jb
01/31/200671000101/31/2006
 Transmission problems, windshield wipers not working, headlights not working, awd problems, cooling system problems, fuel pump, control arm & ball joint problems are just some of the major safety issues on 96-99 gm blazers, bravada's, & jimmys. these problems should really be looked into and recalled. most problems starting right after warranty expired. can't believe gm is getting away with this. transmission went bad at 71000 miles and dealer says that they know there was a defect with the transmissions also problem (code 1870) but they will not cover the repair. *jb
04/28/2004503/16/2001
 The engine overheats, the heater will become inoperative and blow cold air and it gets rust in the cooling systems requring constant flushing.
ENGINE AND ENGINE COOLING - ENGINE
06/01/2004960001
 Dear sir or madam, i am the owner of a 1998 oldsmobile bravada with a 4.3l vortec engine. upon having my vehicle inspected, the mechanic at the dealership told me that my oil cooler lines were leaking, and that i needed to have them fixed ($433). i asked him about this problem, and was told that it was an inherent problem with gm's -- the lines may eventually fail and cause engine seizure. *ak i wanted to do some price checking and find out just how widespread this problem was. needless to say, i was shocked at the sheer number of owners who have had to replace these lines -- regardless of mileage. gm pretends as though they're not aware of the problem, and they are not offering any help with these faulty parts. the costly replacements are just as bad -- some people have experienced failures two or three times. i was told that they were not covered, even under the extended warranty i had purchased. if it is as bad as they say, and it seems to be, the vehicle shouldn't even have been sold to me without being fixed first. i have a major issue with gm when they deny that there is a problem; for the oil cooler lines to fail in such widespread numbers indicates that there is a potential hazard on the roadways. the threat of engine seizure, combined with oil spillage on the highways is a dangerous recipe, indeed. i urge you to please investigate the oil cooler lines issue on the 1998 oldsmobile bravada/chevy blazer/gmc jimmy -- the results of such an investigation will turn up much evidence and make our roads safer. thank you in advance for reading this submission. sincerely, scott luhrs
11/01/20031009/06/2000
 No heat. *cb
11/24/1998112/29/1997
 Tensioner pulley failed. yh
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
 When driving at any speed ehicle will cut off without prior warning. consumer contacted the dealer. dealer has replaced the fuel pump and other parts, butproblem still occurs. please provide any further details. *ak