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Problems for specific GMC Sierra 1500 years:

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Most reported 2009 GMC Sierra 1500 problems

 

Verified for the GMC Sierra 1500

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

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Verified for the GMC Sierra 1500

The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.

5 Reports
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Verified for the GMC Sierra 1500

A Loose or worn gas cap may cause Check Engine Light to illuminate.

4 Reports
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