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10-04-2015, 09:01 PM
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Registered User
Join Date: Jul 2012
Location: Stewartville mn
Posts: 19
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Fault codes
I'm getting a check engine light and the truck goes into limp-home mode. The codes are P1516,P1517, and P1518. I changed the throttle position sensor earlier this year because it would shift out of first at WOT. Should I change out the TAC module? It's a 03 6.0 out of a Yukon Denali. Thanks for any help.
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