Turbocharger Underboost Condition
The POWERSTROKE-P0299-60 (Power Stroke) diesel fault code means: Turbocharger Underboost Condition. This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- advanced
- Estimated cost
- $50-$2,000
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Common Symptoms
- Black smoke
- Loss of power
- Limp mode on hills
- Whistling or chuffing from turbo
Probable Causes (Ranked by Likelihood)
- Stuck VGT vanes from soot buildup Very Likely
- Leaking turbo up-pipes or bellowed section Likely
- Intercooler boot blown off (common at connection point) Likely
- Failed turbo actuator Likely
Step-by-Step Diagnostic Procedure
Smoke-test the entire intake from turbo to intake manifold.
Inspect intercooler boots at the hot and cold side -- a popped boot causes instant P0299.
Monitor MAP vs commanded boost on scan tool.
If vanes stuck, clean and actuate per 6.0L TSB.
Common Fixes by Vehicle
What techs usually find when diagnosing POWERSTROKE-P0299-60 on specific platforms — tap a platform for the fix and the exact part:
2003-2007 Ford F-250/F-350 6.0L Power Stroke Advanced DIY
Turbocharger underboost on 6.0L - almost always the VGT unison ring stuck with soot. Remove the turbo, clean the unison ring and vanes with a wire brush and Seafoam, lube with nickel anti-seize, and reinstall. If the actuator is bad, replace with Ford updated part.
Labor: 4.0-6.0 hrsFrequently Asked Questions
What is P0299 on a 6.0L Power Stroke?
P0299 on a 6.0L Power Stroke (2003-2007) indicates: Turbocharger Underboost Condition. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P0299 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 P0299?
Repair cost is typically $50-$2,000 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.