Exhaust fumes

[thebrug]

I have a 2002 Trailblazer. I'm getting what I think are exhaust fumes into the inside of my truck mostly when coming to a stop when driving. I think I also have to replace my electronic blend door actuator. Any relation between the two. Thanks for any help.

[rodeo02]

Could be a cracked or loose exhaust manifold causing the fumes in the cabin. Broken blend door actuators are also common on 2002's.

Joel

[95_ESi_Person]

Blend door actuator? What is that and how can you tell if it is broken?

[rodeo02]

Originally Posted by 95_ESi_Person

Blend door actuator? What is that and how can you tell if it is broken?

They are electric actuators that open/close the "damper doors" in the HVAC plenum. You may get a clicking/buzzing noise when they break or some of your HVAC vent positions wont work. They are burried up under the dash.

Joel

[ScarabEpic22]

I agree with Joel, but make sure you check your exhaust manifold. There are some early year guys (02-03) having issues with the manifolds rusting through.