Question about 2003 Chevrolet TrailBlazer
You'd probably have to take it in to get it diagnosed, but I'm going to guess that it's the electronic throttle body.
The throttle body and throttle position sensor are in the same unit and if one goes bad, you have to replaced the whole thing.
This will cause high idle, stalling, hard shifts and irratic throttle.
Posted on Oct 21, 2013
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Posted on Jan 02, 2017
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