Test Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers in the diagnostic procedures.

3

A condition that sets one of these DTCs may also result in a DTC P1345. Diagnose these codes before continuing with this diagnostic.

4

A loose CMP sensor may result in a DTC P1345. Attempt to tighten the sensor to proper torque specifications. If unable to prevent CMP sensor movement, inspect the cover for damage before replacing the sensor.

5

A cracked CMP sensor or internal breakage could result in DTC P1345. This will not be apparent unless the sensor is removed from the front engine cover.

6

If the CMP sensor appears to be damaged by contact with the camshaft gear, you may need to remove the front engine cover and inspect for excessive camshaft end-play.