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 the car's computer has detected a problem with the system that controls how the engine uses one of its cylinders, specifically cylinder number 10. It's like one of the engine's parts isn't working properly when the car tries to save fuel.
The P3473 code indicates an issue with the circuit controlling the deactivation of cylinder 10's intake valve. This is part of a system designed to improve fuel efficiency by deactivating certain cylinders when full power isn't needed.
The P3473 code is triggered when the Engine Control Module (ECM) detects an open or malfunction in the intake valve control circuit for cylinder 10. This can affect the engine's ability to deactivate the cylinder properly, which is part of a fuel-saving technology known as cylinder deactivation.
• Check Engine Light illuminated
• Reduced engine performance
• Increased fuel consumption
• Faulty intake valve control solenoid
• Open or shorted wiring in the intake valve control circuit
• Faulty ECM
ECM: Engine Control Module
Solenoid: An electromechanical device used to control a valve
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for the intake valve control solenoid.
• Test the intake valve control solenoid for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the intake valve control solenoid.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Suburban
• GMC Sierra
• Cadillac Escalade
• Regular maintenance and inspections
• Ensure wiring and connectors are secure and free from damage
• Use high-quality engine oil
Engine Performance
• Avoid heavy acceleration until the issue is fixed.
• Have a professional mechanic diagnose and repair the issue.
Repairs may be covered under powertrain warranty if the vehicle is still within the warranty period.
Cylinder deactivation systems have been used in vehicles to improve fuel efficiency, but they can sometimes lead to issues with solenoids and wiring.
Moderate – It's important to address this issue to maintain fuel efficiency and engine performance.
Driving with an illuminated Check Engine Light can lead to further damage. Always address engine issues promptly.
• Engine at operating temperature
• Vehicle running at a steady speed
The intake valve control solenoid for cylinder 10 is typically located on or near the engine block, close to cylinder 10.
Q: Can I drive my car with a P3473 code?
A: It's possible to drive, but it's not recommended as it can lead to reduced fuel efficiency and further engine issues.
Q: What happens if I ignore this code?
A: Ignoring the code can lead to increased fuel consumption and potential damage to the engine.
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