P06DD on Chevrolet
Engine Oil Pressure Control Circuit Stuck Off
P06DD on Chevrolet vehicles indicates engine oil pressure control circuit stuck off. Au7o has documented this code across 3 Chevrolet models — most commonly on Corvette, Silverado 1500, Tahoe. This code applies to engines with an electronically controlled, variable oil pump, where a solenoid (oil control valve) switches the system between low- and high-pressure modes based on engine needs. 'Stuck Off' means the computer commanded the solenoid but the system did not respond, so oil pressure stays in one mode and cannot be properly regulated. This is frequently triggered by low or dirty oil, or by a stuck or sludged-up oil control valve. Symptoms can include engine noise, rough idle, reduced performance, and warning lights — and it should be addressed promptly to protect the engine. Typical repair costs on Chevrolet range from $2,000 to $6,000, depending on the specific model and root cause.
Common Causes of P06DD
- •Low engine oil level or dirty/sludged oil
- •Faulty or stuck oil pressure control solenoid (oil control valve)
- •Clogged oil passages or solenoid screen from sludge
- •Wiring or connector problems at the solenoid
- •Faulty oil pressure sensor
- •Failing variable-displacement oil pump
- •Incorrect oil viscosity
P06DD on Chevrolet by Model
Chevrolet Corvette(1 issue)
- LT2 Engine Valve Lifter Tick and DFM Concerns2020-2025
The C8 Corvette uses the LT2 6.2L V8 with Dynamic Fuel Management (DFM) which can deactivate any combination of cylinders. While the LT2 is generally reliable, some owners report lifter tick similar to the AFM issues on truck engines. The DFM system uses the same collapsible lifter technology. GM has released updated VLOM and lifter designs for the LT2. The tick is most noticeable on cold starts and usually disappears when warm. Severe cases may require lifter replacement.
Chevrolet Silverado 1500(1 issue)
- Active Fuel Management Lifter Failure2014-2019
GM's Active Fuel Management (AFM) system deactivates cylinders to improve fuel economy, but can cause premature lifter wear and failure. Symptoms include rough idle, misfires, and valve train noise. GM released updated lifters.
Chevrolet Tahoe(1 issue)
- AFM/DOD Lifter Failure - V8 Cylinder Deactivation2007-2020
The Tahoe 5.3L and 6.2L V8 engines with Active Fuel Management (AFM) use collapsible hydraulic lifters that commonly fail between 80,000-120,000 miles. Failed AFM lifters cause misfires on deactivation cylinders (1, 4, 6, 7), ticking noises, and potential camshaft and cylinder wall damage. This is the same issue affecting the Silverado and Escalade. GM issued TSB #18-NA-077 acknowledging the problem. The VLOM (Valve Lifter Oil Manifold) must be replaced along with all 16 lifters.
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View P06DD across all makes →Frequently Asked Questions
What does P06DD mean on Chevrolet?▼
P06DD stands for "Engine Oil Pressure Control Circuit Stuck Off." This code applies to engines with an electronically controlled, variable oil pump, where a solenoid (oil control valve) switches the system between low- and high-pressure modes based on engine needs. 'Stuck Off' means the computer commanded the solenoid but the system did not respond, so oil pressure stays in one mode and cannot be properly regulated. This is frequently triggered by low or dirty oil, or by a stuck or sludged-up oil control valve. Symptoms can include engine noise, rough idle, reduced performance, and warning lights — and it should be addressed promptly to protect the engine. On Chevrolet specifically, this code is documented across 3 models.
What causes P06DD on Chevrolet vehicles?▼
Common causes on Chevrolet: Low engine oil level or dirty/sludged oil, Faulty or stuck oil pressure control solenoid (oil control valve), Clogged oil passages or solenoid screen from sludge, Wiring or connector problems at the solenoid, Faulty oil pressure sensor. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P06DD on a Chevrolet?▼
Repair costs on Chevrolet range from $2,000 to $6,000, depending on the specific model and root cause.
Which Chevrolet models have P06DD documented?▼
Au7o has documented P06DD on 3 Chevrolet models: Corvette, Silverado 1500, Tahoe.