How to Change the Throttle Body on a 2002 Trailblazer?

Answer Chevrolet introduced the Trailblazer as a separate vehicle in 2002. Prior to 2002 the Trailblazer label was attached to the Blazer model as a top trim level designation. Chevrolet only offered 4.2-... Read More »

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How to Clean the 2003 Trailblazer 4.2 Throttle Body?

Over time, you can expect the throttle body installed on your Chevy Trailblazer 4.2-liter engine to retain residue form road grime and from the gas you put into the gas tank. This is especially tru... Read More »

How to Change the Battery in a 2002 Chevrolet Trailblazer?

The battery in a 2002 Chevrolet Trailblazer controls the lights, radio and ignition. When the battery dies or needs to be recharged, the vehicle will not start. When the ignition key is turned, a c... Read More »

How do I change engine oil in a 2002 Chevy Trailblazer?

ProcedureRemove the splash shield from the vehicle's underside so you can access the oil pan. Remove the oil pan's drain plug near the bottom of the pan and let the oil drain into a drain pan capab... Read More »

How to Change the Headlights on a 2002 Chevy Trailblazer?

The headlights of your 2002 Chevy Trailblazer must be changed when they burn out to avoid getting into a serious accident while driving at night. The service life for traditional halogen headlights... Read More »