Engine management light on, lack of power and hesitation. Fault codes stored P244F DPF soot accumulation, P2458 DPF regeneration duration and P2459 DPF regeneration frequency. Suspect fault due to heavily blocked DPF.
The fault was cured by removing the DPF and manually cleaning with Forté DPF Off-Car Cleaner as per instructions, carrying out an extended Forté Advanced Formula Motor Flush and adding Forté Diesel Specialist Injector Cleaner and Forté DPF Cleaner & Regenerator into the fuel tank.
Thanks to John at Alpine Automotive Ltd in Blaydon, Tyne and Wear.
Forté's Technical Helpline receives over 300 calls per month. This blog shares solutions for garage workshops on common driveability concerns that can be quickly and effectively treated. The vast majority of those identified are caused by fuel and oil borne contamination formed by natural degradation or via the combustion process. This is a fact of life for internal combustion engines where fossil fuels and oils are used.
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