A clogged diesel particulate filter kills power and triggers derate mode on the 6.7L Cummins. Learn how to clean or replace the DPF and get the truck out of limp mode.
engine
🚗 Dodge Ram 2500
Moderate
How to Fix Dodge Ram 2500 DPF Clogging
Red Rocket
·
August 7, 2026
·
⏱ 2-3 hours
·
2010-2019 Dodge Ram 2500
0
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Step-by-Step Instructions
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1
Check soot load and drive-cycle counts with a scanner.
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2
Remove the DPF from the exhaust system.
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3
Clean with a DPF cleaning system or replace if cracked.
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4
Reinstall with new gaskets.
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5
Force a regeneration and verify backpressure.
Tools & Parts Needed
- 🔧 DPF cleaning kit or new DPF, Torque wrench, Exhaust gasket kit
Frequently Asked Questions
How long does this fix take?
2-3 hours
Do I need special tools?
Yes — see the Tools & Parts list above.
Is this covered under warranty?
Check your vehicle warranty. Some repairs may be covered, especially if the issue is a known defect.
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