I am trying to determine how to diagnose a PO128 error code on a 2002 GMC Safari. I would appreciate any info anyone might have on this
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Ask Your Question2002 GMC Safari
Question: how to fix po128 code on this van
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Answer #1
csubak30 December 17, 2012, 20:16
MasterHere's the obd code: http://www.obd-codes.com/p0128
I would suggest if the coolant level and strength are good, it is probably a bad thermostat that needs replaced.Flag ThisLike0 -
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Bobby97, December 18, 2012, 16:36ReplyRookiethank you.. I will try that
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