OBD-II Code P0013 — What It Means & How to Fix It

What Does This Error Mean?

P0013 means there's a problem with the exhaust camshaft position actuator circuit on Bank 1. The engine's computer can't properly control the exhaust camshaft timing. This actuator adjusts when exhaust valves open and close for better efficiency. You may notice rough idle, reduced power, or worse fuel economy. Dirty oil or a faulty solenoid is usually the cause.

Affected Models

All vehicles 1996+
Common in Chevrolet Equinox
Common in GMC Terrain
Common in Cadillac SRX
Common in Buick LaCrosse

Common Causes

Faulty exhaust camshaft position actuator solenoid that has failed electrically
Dirty or sludged engine oil blocking oil flow to the exhaust actuator
Damaged or corroded wiring between the ECM and the exhaust actuator solenoid
Poor electrical connection at the solenoid connector due to corrosion or loose pins
Failed engine control module not sending correct signals to the exhaust actuator

How to Fix It

Check your engine oil level and condition first. Low or dirty oil starves the exhaust camshaft actuator of the pressure it needs. Change the oil and filter if they're overdue.

Use the exact oil type and weight specified in your owner's manual. This is especially important for variable valve timing systems.
Locate the exhaust camshaft position actuator solenoid. It's on the exhaust side of the cylinder head, which is usually toward the back of the engine near the firewall.

The exhaust solenoid is separate from the intake solenoid. Make sure you're working on the correct one.
Unplug the electrical connector and inspect it for corrosion, bent pins, or moisture. Clean the connector with electrical contact cleaner and let it dry before reconnecting.

Check the wiring harness leading to the connector for any visible damage, chafing, or rodent chew marks.
Replace the exhaust camshaft position actuator solenoid if the connector looks fine. Remove the old solenoid, compare it to the new one, and install the replacement.

The solenoid usually costs $25-$90 and is held in by one or two small bolts. A basic socket set is all you need.
Clear the code with an OBD-II scanner and drive normally for a few days. If the code comes back, the wiring or the engine control module may need professional diagnosis.

Borrow a free OBD-II scanner from auto parts stores like AutoZone or O'Reilly to clear and monitor codes.

When to Call a Professional

If replacing the solenoid and checking wiring doesn't fix the code, see a mechanic. An ECM issue requires professional scan tool diagnosis and programming. Internal timing chain problems need specialized tools to repair. Diagnosis typically costs $100-$200. Solenoid replacement by a shop runs $150-$400 including labor.

Frequently Asked Questions

What is the difference between P0010 and P0013?

P0010 is about the intake camshaft actuator circuit. P0013 is about the exhaust camshaft actuator circuit. They're two separate solenoids on the same bank of the engine. The intake side controls when fresh air enters the cylinder. The exhaust side controls when burnt gases leave the cylinder.

Can I drive with a P0013 code?

Yes, short-distance driving is usually safe. Your engine will run less efficiently than normal. You may notice reduced power and higher fuel consumption. Don't ignore it for more than a week or two. Prolonged driving could cause additional wear on engine parts.

Why do GM vehicles get this code so often?

GM's 2.4L Ecotec engine is especially prone to this code. The oil control solenoids on these engines tend to fail over time. Oil sludge buildup is also common if oil changes are delayed. The good news is that replacement solenoids are inexpensive. Regular oil changes with the correct oil prevent most P0013 issues on GM vehicles.