Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that there's a problem with one of the parts in the engine that helps control the opening and closing of the valves in cylinder 7. It's like one of the doors in the engine isn't opening or closing properly.
The P349E code indicates an issue with the deactivation or performance of the intake valve for cylinder 7. This can affect how efficiently the engine runs.
The P349E code is triggered when the Engine Control Module (ECM) detects a problem with the deactivation mechanism or performance of the intake valve for cylinder 7. This could be due to a malfunction in the valve lifter, a problem with the oil control solenoid, or an issue with the valve itself.
• Check Engine Light illuminated
• Rough engine idle
• Reduced engine performance
• Faulty valve lifter
• Oil control solenoid malfunction
• Low engine oil pressure
ECM: Engine Control Module, the computer that controls engine functions.
Valve Lifter: A component that helps open and close the engine's valves.
• Check for any other related trouble codes.
• Inspect the oil level and pressure.
• Test the oil control solenoid for proper operation.
• Replace the faulty valve lifter.
• Repair or replace the oil control solenoid.
• Ensure proper engine oil level and pressure.
• OBD-II scanner
• Oil pressure gauge
• Multimeter
$200 - $600
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly change engine oil and filter.
• Use the correct oil type and viscosity.
• Perform routine engine maintenance.
Engine Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional.
• Avoid heavy engine loads until the issue is resolved.
Check with the vehicle manufacturer for any applicable warranties related to engine components.
This code has been associated with vehicles using cylinder deactivation technology to improve fuel efficiency.
Moderate – It should be addressed soon to prevent further engine damage.
Driving with an active Check Engine Light may result in reduced performance and increased emissions.
• Engine at operating temperature
• Vehicle in idle or low-load conditions
The intake valve and related components for cylinder 7 are located in the engine's cylinder head.
Q: Can I drive with a P349E code?
A: It's not recommended to drive for extended periods with this code active, as it may lead to further engine damage.
Q: How can I prevent this code from appearing?
A: Regular maintenance, including oil changes and using the correct oil type, can help prevent this issue.
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