Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that helps cool down the gases from the engine before they go back in to be burned again. It's like a valve that isn't opening or closing right.
The EGR (Exhaust Gas Recirculation) cooler bypass control circuit is not working properly, affecting the performance of the system that recirculates exhaust gases.
The P248F code indicates an issue with the EGR cooler bypass control circuit on Bank 2. This circuit controls the bypass valve that directs exhaust gases either through the cooler or bypasses it. When the circuit is out of range or performing poorly, it can affect engine efficiency and emissions.
• Check Engine Light is on
• Reduced engine performance
• Increased emissions
• Faulty EGR cooler bypass valve
• Wiring issues in the EGR bypass control circuit
• Malfunctioning EGR bypass control solenoid
EGR: Exhaust Gas Recirculation
Bypass Valve: A valve that redirects exhaust gases around the cooler
• Scan the vehicle for codes and note any additional codes.
• Inspect the EGR cooler bypass valve for damage or blockage.
• Check the wiring and connectors for the EGR bypass control circuit.
• Replace the faulty EGR cooler bypass valve.
• Repair or replace damaged wiring or connectors.
• Replace the EGR bypass control solenoid if defective.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram 2500
• Regular maintenance and inspection of the EGR system.
• Use high-quality fuel to prevent carbon buildup.
• Ensure proper engine tuning and servicing.
Engine Performance
• Avoid driving the vehicle for long distances until repaired.
• Have the vehicle inspected by a professional mechanic.
• Monitor for any changes in vehicle performance.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
This code has been more prevalent in diesel engines due to their complex EGR systems.
Moderate – Should be addressed soon to prevent further engine performance issues.
Ignoring this code can lead to increased emissions, which may not comply with environmental regulations.
• Engine at operating temperature
• Vehicle in closed-loop operation
The EGR cooler and bypass valve are typically located near the engine, connected to the exhaust manifold.
Q: Can I drive with a P248F code?
A: It's not recommended to drive for long distances as it can affect engine performance and emissions.
Q: How serious is the P248F code?
A: It's moderately serious and should be fixed to ensure proper engine function and emissions control.
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