Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING - ENGINE
04060407606/01/2005040604076A10012723Information on unstable/rough/lumpy engine idle, and low speed vehicle surge, random disturbance or vehicle shudder. *tt03/11/2005
04060102503/01/2005040601025A10011204Exchange program for 2005 model year engines. *tt update. *tt01/10/2005

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE
07/15/20121090001
 Exhaust manifold developed a leak while driving on interstate 40 between nashville and jackson tn. driver and passengers developed headaches and drowsiness before leak was discovered by sound during stop for gas. *tr
07/15/2012109000
 Exhaust manifold developed a leak while driving on interstate 40 between nashville and jackson tn. driver and passengers developed headaches and drowsiness before leak was discovered by sound during stop for gas.
ENGINE AND ENGINE COOLING
03/04/20081
 Lights dimming and brightening, engine coils misfiring and needing to be constantly replaced (2nd time) and fuel gauge constantly stating tank is empty (many, many complaints about this; check the blogs). *tr
03/08/200735999506/15/2005
 2005 trailblazer. middle of high way engine stopped and instrument panel went crazy. some time later ignition key worked again. i changed battery but it happened again and when i turned the ignition key to start the engine, sometimes is work and sometimes id doesn't. the dealer wanted me to pay for diagnosis fee my car is 46000 out of warranty and as i check internet forum some people have the same trouble and dealer covered the money how can i protect my family with the engine stopping in middle of highway!!!!!!!! *jb
ENGINE AND ENGINE COOLING - COOLING SYSTEM
09/22/2009333331
 My chevy trailblazer 2005 model accelerated in the parking lot as i was turning it on and put it in drive with my foot over the brake, it accelerated and jumped 3 feet before i stopped it. i am very thankful, no car was in front of me! *tr
07/01/2009761861
 I have a 2005 trailblazer ext purchased new in july 05. recently while driving, the car had reduced engine power, the check engine light then came on then my car just shut off. it started back up after pulling off the road but had to endure this the entire time while driving home. when i took it in for diagnosis i was told the accelerator pedal sensor needed to be repaired after having that repaired i drove home and the same thing happened with the check engine light and the car shutting off while driving. when i took it back again they noticed an additional problem the fuel level sensor wiring was chaffing on fuel pump ground terminal or in layman's term the wire was sitting in fuel so they had to remove the fuel tank and reroute the wires. this sounds very dangerous and if this is happening please report it. there are tsb reports on the issue with the accelerator pedal but gm has not issued a recall on this. the question is why not? i have also had to have the output shaft seal on the transmission replaced last year and again this year. not very happy with this vehicle. in my opinion these are vehicle defects not problems you should be having with the normal maintenance issues. gm needs to issue recalls to have these issues resolved. oh in addition to the other problems i also just had to have the thermostat replaced in early june. *tr
ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN
01/22/2010630001
 Fan motor only works on 1-4 settings, after a few weeks no setting works. inspecting fan blower found burnt wires leading to the resistor, external before harness. new resistor and harness are needed to remedy. *tr
ENGINE AND ENGINE COOLING - ENGINE
08/16/200628000107/20/2005
 Dt*: the contact stated while driving various speeds, the engine stalled without warning. afterward, the engine easily restarted. the vehicle was inspected by a dealer who was unable to duplicate the problem. the manufacturer was alerted. updated 09/12/06. *jb
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
07/24/2011
 Exhaust manifold on the 2005 chevrolet trailblazer ext with 4.2 engine leaks exhaust fumes into the air and into the interior of the vehicle creating an emissions problem as well as a health hazard of driver and passengers of the vehicle breathing the fumes. replacement parts are near to non existant since there are apparently so many of the vehicles with his problem. i have been looking for a replacement part for 3 weeks and nothing yet. have been told by parts stores, and dealerships that they do not have them and their distribution centers do not have them either, neither do the online websites. there are no parts available in junk yards either. no options at the moment and vehicle will not pass current state inspection.
02/01/201052800
 My 05 chevy trailblazer ext lt with 4.2 l cracked its exhaust manifold at 85000 kms. gm dealership in 2 different cities refused to repair under warranty. this truck was purchased as a new used demo from the original dealership with 14000kms may 06.
07/01/2009761861
 I have a 2005 trailblazer ext purchased new in july 05. recently while driving, the car had reduced engine power, the check engine light then came on then my car just shut off. it started back up after pulling off the road but had to endure this the entire time while driving home. when i took it in for diagnosis i was told the accelerator pedal sensor needed to be repaired after having that repaired i drove home and the same thing happened with the check engine light and the car shutting off while driving. when i took it back again they noticed an additional problem the fuel level sensor wiring was chaffing on fuel pump ground terminal or in layman's term the wire was sitting in fuel so they had to remove the fuel tank and reroute the wires. this sounds very dangerous and if this is happening please report it. there are tsb reports on the issue with the accelerator pedal but gm has not issued a recall on this. the question is why not? i have also had to have the output shaft seal on the transmission replaced last year and again this year. not very happy with this vehicle. in my opinion these are vehicle defects not problems you should be having with the normal maintenance issues. gm needs to issue recalls to have these issues resolved. oh in addition to the other problems i also just had to have the thermostat replaced in early june. *tr
04/20/2009700001
 Under normal driving conditions the exhaust manifold cracked with 70,000 miles on vehicle. *tr