Question about 2004 Chevrolet TrailBlazer
Sounds like the throttle body is going out or just dirty. It has an electronic throttle body that controls the idle. I would remove the air tube that comes from the air cleaner from the throttle body. Prop the throttle blade open, clean it and the throttle body with carb. cleaner, rags, and a toothbrush. If this doesn't take care of it I would replace the throttle body.
Posted on Dec 11, 2009
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Posted on Jan 02, 2017
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