P11AD
Camshaft Adjustment Actuator 'A' Cylinder 4
P11AD is an OBD-II diagnostic trouble code meaning: Camshaft Adjustment Actuator 'A' Cylinder 4. Common causes: vvt solenoid valve malfunction, clogged oil channels of the vvt mechanism. Estimated repair cost: $33–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unstable engine idling
- Popping sounds in the exhaust system
Causes
- VVT solenoid valve malfunction
- Clogged oil channels of the VVT mechanism
- Mechanical damage to the actuator
- Problems with wiring harness or contacts
- Poor quality or contamination of engine oil
How to Fix
- Check the condition of the engine oil and replace if necessary
- Diagnose VVT solenoid valve
- Check the electrical control circuit of the mechanism
- Clean or replace the timing mechanism
- If necessary, replace the entire VVT assembly
Related codes
FAQ
What does the P11AD code mean?
P11AD is an OBD-II diagnostic trouble code that indicates: Camshaft Adjustment Actuator 'A' Cylinder 4
What causes a P11AD error code?
The most common causes of P11AD include: VVT solenoid valve malfunction; Clogged oil channels of the VVT mechanism; Mechanical damage to the actuator; Problems with wiring harness or contacts.
How do I fix a P11AD diagnostic trouble code?
To fix P11AD: Check the condition of the engine oil and replace if necessary. Diagnose VVT solenoid valve. Check the electrical control circuit of the mechanism. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P11AD?
Yes, but get it checked soon
How much does it cost to fix P11AD?
The estimated repair cost for P11AD is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat