I recently had the head gaskets changed. Mechanic replaced heads with 1994 or 1995 heads.

Question

Changed cam and crank sensors as well as wiring. P1345 Code still comes up.

Answer 1

Hi there,

Check the electrical and the mechanical. Here is some more info for you.

P1345 GMC - Crankshaft Position-Camshaft Position Correlation

Read more: https://www.autocodes.com/p1345_gmc.html