Fuel Rail Pressure Too Low
The MAXXFORCE-P0087-DT (MaxxForce) diesel fault code means: Fuel Rail Pressure Too Low. This is a critical severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- advanced
- Estimated cost
- $400-$3,500
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Common Symptoms
- No start or hard start
- Low power / derate
- CEL
Probable Causes (Ranked by Likelihood)
- Failed high pressure fuel pump Likely
- Plugged fuel filter Likely
- Failed fuel rail pressure sensor Possible
- Leaking injector return Possible
Step-by-Step Diagnostic Procedure
Scan live data for rail pressure at cranking and idle.
Replace fuel filter and check lift pump pressure.
Test injector return flow (crack test).
Frequently Asked Questions
What is P0087 on a MaxxForce DT (7.6L)?
P0087 on a MaxxForce DT (7.6L) (2007-2015) indicates: Fuel Rail Pressure Too Low. This is a known fault code on the MaxxForce engine family and typically points to the causes listed above.
Can I drive with P0087 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 P0087?
Repair cost is typically $400-$3,500 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.