Autologic share top tip for Ford’s suffering failed DPF regeneration

Cause of DPF blockage and regeneration failure and what you need to do to fix it

Autologic share top tip for Ford’s suffering failed DPF regeneration

Diagnostic brand, Autologic has shared a ‘technical top tip’ for technicians dealing failed DPF regeneration on Ford’s 1.6, 2.0 and 2.2 Duratorq TDCi engines.

Possible fault codes likely to show include P244C, exhaust temperature too low for particulate filter regeneration, and P26A1, exhaust after treatment glow plug circuit open.

Autologic say that the malfunction indicator lamp warning light may also show on the instrument panel cluster and the car will likely being suffering restricted performance.

Explaining the cause of the issue, Autologic said: “The vaporiser is physically blocked, or a blown fuse due to a vaporiser component internal short circuit caused by the vaporiser glowplug overheating, or pump failure.”

Technicians are advised to gain access to the vaporiser, connect a vacuum pump and see if the vaporiser holds a vacuum.

If so, the vaporiser is blocked and will need replacing.

If the fuse for the vaporiser glowplug or pump has blown, test the glowplug resistance (nominal 1.1 Ohms, if less than 0.8 Ohms or greater than 1.3 Ohms then the vaporizer glow plug is faulty and will need to be replaced).

If the value is within spec, disconnect the fuel line from the pump and place the end of the fuel line in a clean container and run the bleed/prime routine.

If the pump is noisy, or does not run, then check the wiring to pump and that the fuel lines are not blocked.

Replace pump and bleed as necessary.

For further information about Autologic, select ‘more details’ below.

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