Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The fan that helps cool the air entering the engine is stuck and won't turn off.
The P028C code indicates that the cooling fan for the charge air cooler is not turning off as it should, which might cause the engine to not perform optimally.
The charge air cooler cooling fan is responsible for reducing the temperature of the air entering the engine after it has been compressed by the turbocharger. If this fan is stuck on, it may indicate a malfunction in the fan control circuit or a mechanical issue with the fan itself.
• Cooling fan runs continuously
• Reduced engine performance
• Possible overheating
• Faulty cooling fan relay
• Short circuit in the fan control wiring
• Defective cooling fan motor
Charge Air Cooler: A device used to cool air after it has been compressed by the turbocharger.
Relay: An electrically operated switch used in various automotive systems.
• Check the cooling fan relay for faults.
• Inspect the wiring for shorts or damage.
• Test the cooling fan motor for proper operation.
• Replace the faulty cooling fan relay.
• Repair or replace damaged wiring.
• Replace the cooling fan motor if defective.
• Multimeter
• Screwdriver set
• Relay puller tool
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect fan wiring and connections.
• Ensure cooling fan relay is functioning properly.
• Perform routine maintenance on cooling system.
Engine Performance
• Avoid driving long distances until the issue is resolved.
• Monitor engine temperature closely.
Check vehicle warranty for coverage of cooling system components.
This code is relatively uncommon and typically associated with vehicles that have a turbocharged engine.
Moderate – Address the issue soon to prevent potential engine overheating.
Operating a vehicle with a malfunctioning cooling fan can lead to engine overheating and potential damage.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The charge air cooler cooling fan is typically located near the front of the engine bay, close to the radiator.
Q: Can I drive with the P028C code?
A: It's not recommended to drive for long periods with this code, as it can lead to engine overheating.
Q: How can I reset the P028C code?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
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