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P0299 Code on a Diesel Truck: Causes, Fixes, and What to Check First
If your Power Stroke, Cummins, or Duramax just set a P0299 code and the truck feels flat when you hit the throttle, you are not alone. P0299 is one of the most common boost codes on diesel pickups, and it often shows up while towing, climbing a grade, or pulling away from a stop with a loaded trailer.
The code is a starting point, not a verdict. Most of the time something around the turbo is leaking, restricted, stuck, or reading wrong. This guide covers the platform-specific causes, how to test in the right order, and what repairs cost.
P0087 on a Diesel Truck: Fuel Rail Pressure Too Low, Causes and Fixes
If your 6.7L Power Stroke, 6.7L Cummins, or 6.6L Duramax just threw P0087, you are probably dealing with a hard start, a stumble under load, or a truck that dropped into limp mode. The ECM is telling you one thing: the fuel pressure in the common rail is lower than the pressure it asked for.
That is a serious message on a modern diesel. This guide covers what causes it on each platform, the order to test things in, and when to hand the truck to a diesel shop.
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