P0009 on GMC
Engine Position System Performance - Bank 2
P0009 on GMC vehicles indicates engine position system performance - bank 2. Au7o has documented this code across 1 GMC model — most commonly on Acadia. This code means the engine control module detected that the position of the camshaft(s) on bank 2 is out of alignment with the crankshaft beyond an acceptable range. The computer compares crankshaft and camshaft position sensor signals to confirm the valve timing is correct; when bank 2 is off, the engine's intake and exhaust valves are not opening and closing at the proper moments. This can cause rough running, reduced power, hard starting, or rattling, and on engines with variable valve timing it often involves the timing components or the phasing system. It generally indicates a mechanical timing problem — such as a stretched chain or jumped timing — on the bank of cylinders not containing cylinder 1.
Common Causes of P0009
- •Stretched or worn timing chain on bank 2
- •Worn timing chain guides or tensioner
- •Faulty camshaft phaser / variable valve timing actuator
- •Stuck or clogged VVT oil control (cam phaser) solenoid
- •Low oil level or dirty oil affecting VVT operation
- •Camshaft or crankshaft position sensor fault
- •Timing chain that has jumped a tooth (skipped timing)
P0009 on GMC by Model
GMC Acadia(1 issue)
- High-Feature V6 Timing-Chain Correlation DTC Bulletin2007-2012
GM bulletin 10245795 documents timing-chain and guide service information for High Feature V6 engines that set camshaft-to-crankshaft correlation DTCs P0008, P0009, P0016, P0017, P0018 or P0019.
Looking for P0009 on a different make?
View P0009 across all makes →Frequently Asked Questions
What does P0009 mean on GMC?▼
P0009 stands for "Engine Position System Performance - Bank 2." This code means the engine control module detected that the position of the camshaft(s) on bank 2 is out of alignment with the crankshaft beyond an acceptable range. The computer compares crankshaft and camshaft position sensor signals to confirm the valve timing is correct; when bank 2 is off, the engine's intake and exhaust valves are not opening and closing at the proper moments. This can cause rough running, reduced power, hard starting, or rattling, and on engines with variable valve timing it often involves the timing components or the phasing system. It generally indicates a mechanical timing problem — such as a stretched chain or jumped timing — on the bank of cylinders not containing cylinder 1. On GMC specifically, this code is documented across 1 model.
What causes P0009 on GMC vehicles?▼
Common causes on GMC: Stretched or worn timing chain on bank 2, Worn timing chain guides or tensioner, Faulty camshaft phaser / variable valve timing actuator, Stuck or clogged VVT oil control (cam phaser) solenoid, Low oil level or dirty oil affecting VVT operation. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0009 on a GMC?▼
Repair costs vary widely depending on the root cause and specific GMC model.
Which GMC models have P0009 documented?▼
Au7o has documented P0009 on 1 GMC model: Acadia.