Fuel Rail Pressure Too High
The MAXXFORCE-P0088-DT (MaxxForce) diesel fault code means: Fuel Rail Pressure Too High. This is a critical severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- advanced
- Estimated cost
- $300-$1,500
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View pilot availability →What Are the Symptoms of MAXXFORCE-P0088-DT?
- Rough idle
- Black smoke
- CEL
What Causes MAXXFORCE-P0088-DT? (Most Likely First)
- Failed fuel pressure regulator (IMV) Likely
- Stuck injector Possible
Can I Still Drive with MAXXFORCE-P0088-DT?
Short distances only. MAXXFORCE-P0088-DT is rated critical severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What is P0088 on a MaxxForce DT (7.6L)?
P0088 on a MaxxForce DT (7.6L) (2007-2015) indicates: Fuel Rail Pressure Too High. This is a known fault code on the MaxxForce engine family and typically points to the causes listed above.
Can I drive with P0088 on my MaxxForce?
Only drive short distances to reach a repair facility. Continued operation may cause further damage or progressive derate.
How much does it cost to fix MaxxForce P0088?
Repair cost is typically $300-$1,500 depending on the underlying cause and shop rate. Many MaxxForce faults (especially EGR cooler, head bolt, and VGT repairs) are major expenses that drove fleet owners to repower with Cummins or retire these trucks early.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose MAXXFORCE-P0088-DT?
Read commanded vs actual rail pressure.
Replace IMV regulator on high pressure pump.
Which Vehicles Commonly Get MAXXFORCE-P0088-DT?
- International 4300 DuraStar MaxxForce DT
- International 4400 DuraStar MaxxForce DT
- International 7300/7400/7500 WorkStar MaxxForce DT
- IC Bus CE-Series MaxxForce DT
- IC Bus RE-Series MaxxForce DT
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