News

Catch up on the latest product information, installation explanations, news, events, new technologies, and more exciting content through DPFexhaust's blogs.
Diesel truck parked after driving with heat around the exhaust area

Why Does My Diesel Truck Smell Hot After I Park? DPF Regen vs. Exhaust Problems

A hot-metal or sharp exhaust smell after parking is often normal during or after active DPF regeneration. The odor should fade as the truck cools. Raw fuel, burned oil, sweet...

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Diesel injector diagnosis related to repeated DPF clogging

Can Injector Problems Cause Repeated DPF Clogging?

Yes, injector problems can make a DPF clog again soon after regeneration. A leaking, worn, or poorly controlled injector may cause dirty combustion and extra soot. This guide explains the...

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Carbon buildup around a diesel EGR component linked to faster DPF soot loading

How EGR Problems Can Make Your DPF Fill Up Faster

EGR problems can make a DPF fill faster when they upset airflow and cause the engine to make more soot. A stuck valve, blocked cooler, bad sensor, or airflow issue...

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Diesel pickup towing under load illustrating worse turbo response as exhaust backpressure increases

Why Does Turbo Response Get Worse as Exhaust Backpressure Increases?

Excessive downstream backpressure can reduce the useful pressure ratio across the turbine and make turbo response worse. Measure restriction before replacing parts, and separate it from charge-air leaks, pre-turbo leaks,...

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Diesel truck oil consumption inspection scene showing the relationship between burning oil and DPF life

Can Excessive Oil Consumption Shorten DPF Life?

Excessive engine-oil consumption can shorten DPF life because burned motor oil leaves behind noncombustible ash that normal regeneration cannot remove. Unlike soot, which can be oxidized during a successful regen,...

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2013–2018 Ram pickup and Cab & Chassis trucks compared for 6.7L Cummins fitment checks

Ram Pickup vs Cab & Chassis: 2013–2018 Fitment Checks

✓ Quick Answer Do not order by the Ram 3500 badge alone. For the hardware covered here, the truck must be a 2013–2018 Ram 3500, 4500, or 5500 Cab &...

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4-inch and 5-inch exhaust systems compared for a 6.7L Cummins Cab & Chassis work truck

4-Inch vs 5-Inch Exhaust: How to Choose for a 6.7L Cummins Cab & Chassis

Compare 4-inch and 5-inch exhaust options for a 6.7L Cummins Cab & Chassis by sound, flow, fitment, material, corrosion resistance, and truck use.

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Diesel pickup at home during active DPF regeneration with hot exhaust after shutdown

What Happens If You Shut Off a Diesel Truck During DPF Regeneration?

Shutting off a diesel truck once during active DPF regeneration usually does not damage the filter. The regeneration simply stops before all targeted soot is burned off and will normally...

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Ford 6.7 Powerstroke CCV Delete/Reroute: Pros & Cons

Ford 6.7 Powerstroke CCV Delete/Reroute: Pros & Cons

1. Summary of Ford 6.7 Powerstroke CCV Delete/Reroute Kit A Ford 6.7 Powerstroke CCV delete/reroute kit moves crankcase vent (CCV) vapors away from the intake. Done right, it keeps oil...

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Should I Delete EGR on my LML Duramax

Should I Delete EGR on my LML Duramax

A duramax lml egr delete kit fixes EGR cooler leaks and P0401 codes on 2011–2016 LML trucks. Covers symptoms, legality, owner fixes, kits, and risks.

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