Question

1998 Chevrolet Silverado, my service engine light is on scanner reads "P1345".

Answer 1

Hi there,

This code is for the crankshaft position sensor. Typically the sensor itself is the cause of the problem. Depending on which engine is in the truck, then that would determine the location of the sensor.

Answer 2

P1345 CHEVROLET - Crankshaft Position-Camshaft Position Correlation

Read more: https://www.autocodes.com/p1345_chevrolet.html