Learn why your dpf is clogged and the straightforward fixes that actually work from the diesel dudes.
If your truck refuses to perform a forced regen, you’re dealing with one of the most frustrating diesel problems
Whether you’re using a dashboard.
Learn what causes dpf regeneration failure, key warning signs, and proven fixes—from passive or forced regen to sensor, egr, and dpf repairs.
Here are the most common reasons your diesel isn't finishing a regen cycle and how to fix it.
Failed regens lead to high soot levels, parked regen requests, dpf warnings, and eventually the dreaded 5 mph derate
This guide explains the most common reasons regeneration fails — and what you can.
When your truck won't regen, diagnose dpf failures fast
Learn why forced regen fails, common fault codes, cleaning solutions, and prevention strategies.
Failed turbo actuators or stuck vanes prevent exhaust temps from rising
Nox sensors must function for regen and def dosing
If temp sensors report incorrect readings, regen aborts.
Dpf light on, limp mode, or a customer asking why their diesel keeps doing it every two weeks
Here's what i do in my workshop, written for people.
Is your diesel in limp mode
Learn the top warning signs of a clogged dpf, what causes it, and how to fix it before needing a costly replacement.
Understanding what leads to a clogged dpf, and what you can do about it, is key to keeping your diesel truck reliable and compliant.