Low Pressure Fuel System Pressure - Too High
What does POWERSTROKE-P008B mean?
The POWERSTROKE-P008B (Power Stroke) diesel fault code means: Low Pressure Fuel System Pressure - Too High. This is a moderate severity code.
Common Symptoms
- CEL
- Reduced power
Probable Causes (Ranked by Likelihood)
- Stuck lift pump regulator Likely
- Pinched return line Possible
Step-by-Step Diagnostic Procedure
Check lift pump commanded vs actual pressure.
Inspect return lines for kinks or restrictions.
Frequently Asked Questions
What is P008B on a 6.7L Power Stroke (Scorpion)?
P008B on a 6.7L Power Stroke (Scorpion) (2011-present) indicates: Low Pressure Fuel System Pressure - Too High. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P008B on my Power Stroke?
Only drive short distances to get to a repair facility. Continued operation may cause further damage.
How much does it cost to fix P008B?
Repair cost is typically $150-$800 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.
P008B on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: