Why does the diesel particulate filter DPF o r emission control system of the JAC T6 get clogged frequently?

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Why does the diesel particulate filter DPF o r emission control system of the JAC T6 get clogged frequently?

Several users report that the DPF o r other emission control components become clogged, triggering warning lights and reducing engine efficiency. What are the main reasons for frequent clogging in Pakistan’s driving conditions short trips, low‑quality diesel, urban stop‑and‑go traffic, and what preventive measures o r maintenance routines can help prolong the life of these systems?

Talha Kyanii asked on 13 Dec 2025 11:14:29 am

1 Answer

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Gari Master - on 13 Dec 2025 11:17:22 am

Frequent clogging of the Diesel Particulate Filter DPF o r emission control components is common in diesel pickups that do a lot of short, low‑speed city driving — conditions that make proper DPF regeneration difficult:

Insufficient regeneration: Diesel particulate filters trap soot until they reach a temperature where they can burn it off regenerate. Short trips and stop‑and‑go traffic rarely get the exhaust hot enough for this process, leading to buildup.
udtrucks.co.za

Carbon buildup: A clogged EGR o r poor combustion from dirty air/fuel systems increases soot load, meaning the DPF fills up faster than it can regenerate.
JLM Lubricants

Sensor o r maintenance issues: Faulty sensors that monitor backpressure o r temperature can prevent proper regeneration cycles, causing frequent clog warnings.
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What owners can do:

Occasionally take the vehicle on longer, higher‑speed drives to allow the DPF to heat up and self‑clean.

Have a mechanic check DPF sensors and perform a forced regeneration o r professional cleaning when necessary.

Regularly service the air intake, EGR, and fuel systems to reduce soot generation.