What does code P0016 mean on a Chevrolet and is it safe to drive?
P0016: Crankshaft/Camshaft Position Correlation – Bank 1, Sensor A. Here's what it means on your Chevrolet, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
What this code means
The PCM has detected that the crankshaft and intake camshaft positions on bank 1 are out of expected sync. A serious code that can indicate timing chain wear or jump.
Common causes for your Chevrolet
- Stretched or jumped timing chain
- Faulty crankshaft or camshaft position sensor
- Worn timing chain tensioner or guides
- Incorrect cam phaser position
Symptoms
- Check Engine Light
- Hard starting or no-start
- Rough running, stalling
- Rattling from timing chain area on startup
Typical fixes
- Replace timing chain, tensioner, and guides
- Replace crankshaft or camshaft position sensor
- Inspect and replace cam phaser if locked
Repair cost range
For a Chevrolet, repairs for P0016 often fall between $300 and $2500, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Chevrolet
GM 5.3L and 6.2L V8 engines have a documented timing chain wear problem that causes P0016. The AFM system accelerates wear; replacing the full timing chain kit and disabling AFM with a tune is the definitive fix.
Most commonly affected models