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Recent questions tagged p1621

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1 answer 479 views

P1621 GMC - code and a rattle in transmission when in park but shifts good. wha does this mean

asked Sep 9, 2018 by T.Rankin

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2 answers 966 views

On my 1998 Chevrolet Cavalier with engine code p1621, how to repair?

asked Jun 20, 2018 by anonymous

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1 answer 566 views

what is he cause of a 1999 0ldsmobile alero p1621

asked Jun 8, 2018 by chpadilla

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1 answer 588 views

2005 Chevrolet Silverado 6.6L with codes P0237, P0670, P1621, and P0106

asked May 5, 2018 by anonymous

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1 answer 995 views

What is code p1621 on my obd?

asked Aug 2, 2017 by anonymous

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1 answer 1.6k views

2005 Chevrolet Duramax with engine code P1621, what would cause this?

asked May 1, 2017 by anonymous

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