Exhaust Gas Recirculation Cooling Valve Control Circuit Open
The P2425 code means the vehicle's onboard diagnostic system has detected: Exhaust Gas Recirculation Cooling Valve Control Circuit Open. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $200 - $800 (parts and labor)
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What Are the Symptoms of P2425?
- Check Engine Light illuminated
- Increased NOx emissions
- Engine knocking under load
- Reduced fuel economy
- EGR cooler not regulating temperature
What Causes P2425? (Most Likely First)
- Failed EGR cooler bypass valve Very High
- Damaged wiring to EGR cooling valve High
- Corroded connector at EGR cooling valve Moderate
- Blown fuse for EGR cooler circuit Low
Can I Still Drive with P2425?
Short distances only. P2425 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
Can I drive with code P2425?
Short distances only. Without proper EGR cooling, combustion temperatures can be higher than designed, which increases wear on engine components.
What causes P2425?
Usually a failed EGR cooler bypass valve or damaged wiring. This code is most common on diesel trucks with EGR cooler systems.
Is P2425 expensive to fix?
Typically $200 to $800. The bypass valve itself is moderately priced but EGR cooler replacement on diesel engines is more labor intensive.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P2425?
-
Check the EGR cooler valve fuse
-
Inspect wiring and connector at the EGR cooling valve
-
Measure the valve solenoid resistance
-
Command the valve with a scan tool to verify operation
-
Check for coolant leaks at the EGR cooler assembly
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Which Vehicles Commonly Get P2425?
- 2008-2016 Ford F-250 6.4L Diesel
- 2011-2019 Ford F-250 6.7L Diesel
- 2010-2018 Ram 2500 6.7L Diesel
- 2012-2020 Chevrolet Silverado 6.6L Duramax
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