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July 1, 2014 Service bulletin

Chevrolet/gmc: the engine harness is rubbing on engine vacuum pump pulley and causing a no crank issues...

Chevrolet technical service bulletin PIT-5307 for 2014 Chevrolet Silverado 1500 and 2014 GMC Sierra 1500.

Bulletin number
PIT-5307
Component
Electrical system: wiring
Summary
Chevrolet/gmc: the engine harness is rubbing on engine vacuum pump pulley and causing a no crank issues and other diagnostic trouble codes (dtcs). Model 2014 silverado 1500, sierra 1500.

Owners of these vehicles have filed 470 complaints in the electrical category.

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