Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the engine part that helps control the timing of the camshaft is getting too hot. It's like when you play outside and get too hot, so you need to cool down.
This code indicates that the camshaft position actuator, which adjusts the timing of the camshaft, is overheating on bank 1 of the engine.
The P103E code is triggered when the Engine Control Module (ECM) detects that the temperature of the 'B' camshaft position actuator on bank 1 exceeds the specified threshold. This actuator is responsible for adjusting the camshaft timing to optimize engine performance and efficiency.
• Check Engine Light is on
• Poor engine performance
• Reduced fuel efficiency
• Engine misfires
• Unusual engine noises
• Faulty camshaft position actuator
• Low engine oil level or poor oil quality
• Blocked oil passages
• Faulty temperature sensor
• Wiring issues or poor electrical connections
Camshaft: A shaft in the engine that controls the opening and closing of the intake and exhaust valves.
Actuator: A component that moves or controls a mechanism or system.
• Check the engine oil level and quality
• Inspect the wiring and connections to the actuator
• Test the camshaft position actuator
• Check for blocked oil passages
• Verify the temperature sensor functionality
• Replace the faulty camshaft position actuator
• Change the engine oil and filter
• Clean or unblock oil passages
• Repair or replace damaged wiring
• Replace the faulty temperature sensor
• OBD-II scanner
• Multimeter
• Wrench set
• Oil filter wrench
• Socket set
$150 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly check and change engine oil
• Ensure proper engine cooling
• Inspect wiring and connections periodically
Engine Performance
• Avoid driving the vehicle until repaired to prevent further damage
• Consult with a professional mechanic for accurate diagnosis
Check with your vehicle manufacturer for warranty coverage on engine components.
This code has been associated with vehicles experiencing camshaft actuator issues due to poor maintenance or oil quality.
High – Continuing to drive with this issue can cause severe engine damage.
Ignoring this code can lead to engine failure, which may result in unsafe driving conditions.
• Engine at operating temperature
• Vehicle in idle or low-speed conditions
The camshaft position actuator is located near the camshaft on the engine, typically on the top or side of the engine block.
Q: Can I drive with a P103E code?
A: It's not recommended to drive with this code active, as it can lead to further engine damage.
Q: How can I prevent a P103E code?
A: Regular maintenance, including oil changes and inspections, can help prevent this code.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.