P0009 on Cadillac
Engine Position System Performance - Bank 2
P0009 on Cadillac vehicles indicates engine position system performance - bank 2. Au7o has documented this code across 1 Cadillac model — most commonly on STS. 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. Typical repair costs on Cadillac range from $1,500 to $3,000, depending on the specific model and root cause.
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 Cadillac by Model
Cadillac STS(1 issue)
- 3.6L V6 Timing Chain Stretch and Guide Failure2005-2011
The 3.6L V6 LY7 engine suffers from premature timing chain stretch and plastic timing chain guide failure, often before 100,000 miles. The stretched chain causes valve timing errors that trigger check engine lights and can eventually lead to jumped timing and catastrophic engine damage. This is one of the most expensive repairs on the STS.
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View P0009 across all makes →Frequently Asked Questions
What does P0009 mean on Cadillac?▼
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 Cadillac specifically, this code is documented across 1 model.
What causes P0009 on Cadillac vehicles?▼
Common causes on Cadillac: 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 Cadillac?▼
Repair costs on Cadillac range from $1,500 to $3,000, depending on the specific model and root cause.
Which Cadillac models have P0009 documented?▼
Au7o has documented P0009 on 1 Cadillac model: STS.