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Re: 2012 Ram 2500 6.7 Cummins P020a, P020b etc.after head gasket
Posted to HD/Fleet Forum on 3/30/2018 3 Replies

Thanks Albin. Answer to test on #4 is yes, but its not repeatable everytime.

Are you suggesting a return flow test? The techconnect trouble tree for this range of p codes by vin didnt suggest such.

Thx Andy Login to read more.

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