Fuel Rail Pressure Too Low
The PERKINS-P0087 (Perkins) diesel fault code means: Fuel Rail Pressure Too Low. This is a critical severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- intermediate
- Estimated cost
- $25-$90 filter, $350-$800 transfer pump
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Common Symptoms
- No start
- Extended crank
- Derate
Probable Causes (Ranked by Likelihood)
- Plugged primary filter Very Likely
- Failed transfer pump Likely
- HP pump suction control valve Possible
Step-by-Step Diagnostic Procedure
Replace primary filter, bleed system.
Measure lift pump pressure at HP pump inlet.
Frequently Asked Questions
What is Perkins fault code P0087?
Perkins P0087 means: Fuel Rail Pressure Too Low. Critical code -- stop operating until repaired.
Can I keep operating with Perkins P0087?
Critical fault -- do not operate; tow or trailer to a dealer. Diagnose with Perkins EST / CAT ET (kin to CAT-badged machines).
How much does it cost to fix Perkins P0087?
Repair cost range: $25-$90 filter, $350-$800 transfer pump.
P0087 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: