P0011 on Cadillac: How to Diagnose & Fix
Intake Camshaft Position Timing - Over-Advanced (Bank 1)
3 Cadillac models · 3 documented issues · 1 critical · $2,500-$4,500 repair
P0011 on Cadillac by model: symptoms, diagnosis and fix
GM PIP5652A covers the 2019 XT4 with the 2.0L LSY engine when a front-engine rattle is present, with or without P0011, P0014, P0016 or P0017. A stuck or collapsed timing-chain tensioner can damage camshaft actuator valve hardware, so GM directs inspection of the actuator snap rings, tensioner and guides rather than automatic replacement of a generic timing kit.
Common Symptoms
- Rattle from the front of the engine
- Check-engine light may be present
- P0011, P0014, P0016 or P0017
How to Fix
Have a qualified technician verify the engine RPO and DTCs, inspect both camshaft actuator valve snap rings, then inspect the timing-chain tensioner and guides using current Cadillac service information. Replace only the failed or damaged components identified by that inspection. The exact ShowMeTheParts lookup returned no timing-chain candidate, so the former aftermarket kit and water-pump links were removed.
Sources for this issue (1)
The XT5 V6 models use the GM 3.6L V6 (LGX) which has improved timing chains over earlier versions but is not immune to timing chain stretch at higher mileage. The LGX is better than the earlier LFX but still uses three timing chains with plastic guides. Issues typically appear later (100,000-150,000 miles) compared to earlier 3.6L variants. The 2020+ XT5 2.0T models use a different engine (LSY) and are not affected by this issue.
Common Symptoms
- Check engine light with timing correlation codes
- Rattling on cold start
- Rough idle or misfires at high mileage
- Reduced engine power warning
How to Fix
Same timing chain replacement as SRX/CTS 3.6L. Cloyes 9-0753S kit, replace water pump simultaneously. The LGX timing chain typically lasts longer than the LFX, so preventive replacement at 100,000+ miles is recommended rather than the 80,000-mile interval for earlier engines.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Timing chain kit (complete) — GM 3.6L LGXOEM12713649Cross-refACDelco (GM OE) 12713649, Cloyes 9-0753S — DOES NOT FIT, see note$280–$360
This is the correct complete timing chain kit for the XT5's 3.6L V6 (LGX), sold as ACDelco/GM OE kit 12713649 and cataloged for 2017-2025 Cadillac XT5 3.6L. IMPORTANT CORRECTION TO THE DOCUMENTED FIX: Cloyes 9-0753S is NOT an XT5 part.
- Water pump (with gasket) — 3.6L V6OEM12707180Cross-refACDelco GM OE 12707180, supersedes GM 12672035, ACDelco Professional 252-1038$110–$140
Replace with the timing chains — the water pump is behind/at the timing cover on the LGX, so doing it at the same time saves the whole teardown later. 12707180 is the current GM part and supersedes 12672035.
Sources for this issue (1)
The XT6 uses the GM 3.6L V6 (LGX) which has a documented history of timing chain stretch across the GM lineup. While the LGX generation is improved over earlier 3.6L variants, the three-chain design with plastic guides remains a long-term reliability concern. Most XT6s are still too new for widespread timing chain failures, but owners should monitor for early signs and plan for preventive replacement around 100,000-120,000 miles based on the engine's history in other models.
Common Symptoms
- Rattling on cold start that goes away when warm
- Check engine light with timing correlation codes at higher mileage
- Rough idle developing gradually
How to Fix
Monitor for timing chain rattle on cold starts. If codes or rattle develop, complete timing chain replacement is needed. Preventive replacement at 100,000-120,000 miles is wise based on the 3.6L's track record. Same Cloyes 9-0753S kit as other 3.6L applications.
Sources for this issue (1)
P0011 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0011 mean on a Cadillac?
P0011 stands for "Intake Camshaft Position Timing - Over-Advanced (Bank 1)." P0011 means the engine computer detected that the intake camshaft timing on Bank 1 is more advanced than it should be — the variable valve timing system is either over-advancing the cam or not responding correctly to commands. Modern engines use a camshaft actuator, controlled by an oil-fed solenoid, to vary valve timing for better power and efficiency. When the actual cam position stays more advanced than the computer commands (or won't move back), this code is set. It generally indicates a fault in the variable valve timing system and can cause rough idle, reduced performance, or poor fuel economy. On Cadillac it is documented across 3 models: XT4, XT5, XT6.
What are the most common causes of P0011?
The most common causes of P0011 are: Stuck or faulty camshaft (VVT) oil control valve / solenoid, Low or dirty engine oil restricting actuator movement, Clogged oil control valve screen or oil passages, Faulty camshaft phaser / actuator stuck advanced, Wrong oil viscosity or overdue oil change, Wiring or connector fault to the VVT solenoid, Faulty camshaft position sensor. The specific cause varies by vehicle.
How much does it cost to fix P0011 on a Cadillac?
Published repair estimates on Cadillac range from $2,500 to $4,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0011 on a different make?
View P0011 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.