Emission Control Problems of Chevrolet Trailblazer

Chevrolet Trailblazer owners have reported 5 problems related to emission control (under the engine and engine cooling category). The most recently reported issues are listed below.

car image   Emission Control problem of the 2005 Chevrolet Trailblazer 1
Failure Date: 03/07/2007

In March 2007 the check engine light came on and stayed on . I took vehicle to dealer to have it checked out. It turned out to be the secondary air pump either clogged, not running or something electrical with it. Ever since then all the exterior and interior lights became bright then dimmed for a few minutes when I start the vehicle. After leaving for work and stopping the vehicle to turn, and then again a few miles down the road, the headlamps started to flicker. Sometimes it flickered a few more times before I got to work , only 25 minutes from home. I have noticed the battery gauge fluctuated while this is happened. I was told that this was normal. Also, I am not sure this was related, but ever since the check engine"light problem the air conditioning system did not work properly. It didn't work on 5, but it did blow some on the other levels, and that varied too. I have had the air conditioning recharged, to no avail, it acted like there was a leak somewhere. Hopefully ,gm or someone else will find the solution before there was an electrical fire or even a case of road rage due to other drivers thinking I wa s flashing the bright lights at them.

See all problems of the 2005 Chevrolet Trailblazer.

car image   Emission Control problem of the 2004 Chevrolet Trailblazer 2
Failure Date: 04/22/2005

The consumer had the sensor code p0171 replaced on the 2004 Chevrolet Trailblazer but the check engine light still illuminates on the dashboard. The consumer also felt a loss of power and the vehicle would not accelerate properly. Bucking and hesitation was current as well. The consumer was told an oxygen sensor was needed.

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car image   Emission Control problem of the 2003 Chevrolet Trailblazer 3
Failure Date: 04/07/2004

Air conditioner emits a foul smell! dealer states it is a air born bateria that they can not resolve. My choices are spray vents with lysol frequently, get monthly chemical treatments, or suffer from the bacteria that is making us ill. But of course after the warranty expires I will have to pay for the monthly chemical treatments at $100 each visit. Dealer and chevy says they can not fix.

See all problems of the 2003 Chevrolet Trailblazer.

car image   Emission Control problem of the 2001 Chevrolet Trailblazer 4
Failure Date: 01/01/1901

2001 Trailblazer cuts off when driving. After having it serviced found that mass air flow sensor needs to be replaced fuse and hose assembly.

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car image   Emission Control problem of the 2002 Chevrolet Trailblazer 5

Air conditioner came on without turning it on. Dealer determined that the oxygen sensors and the air conditioning switch must be replaced.

See all problems of the 2002 Chevrolet Trailblazer.