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September 10, 2020 Service bulletin

This technical procedure provides a procedure to replace the front oil crank seal on remanufactured...

Chevrolet technical service bulletin 20NA185 for 2014, 2017-2018 Chevrolet Silverado 1500, 2015 Chevrolet Tahoe and 2014 GMC Sierra 1500 and others.

Bulletin number
20NA185
Component
Equipment
Summary
This technical procedure provides a procedure to replace the front oil crank seal on remanufactured engines only, if found the cause of the customers concern.

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