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May 24, 2021 Service bulletin

This technical bulletin provides a procedure to locate and repair a possible short in the wiring harness...

Chevrolet technical service bulletin 18NA307 for 2015-2021 Chevrolet Colorado and 2015-2021 GMC Canyon.

Bulletin number
18NA307
Component
Engine and engine cooling
Summary
This technical bulletin provides a procedure to locate and repair a possible short in the wiring harness located at the camshaft cover or the cylinder head.

Owners of these vehicles have filed 273 complaints in the engine category.

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