Ford - Focus 99 1.8 TDDi misfiring under acceleration

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Thu 8 Nov 2007 10:00
Focus 99 1.8 TDDi misfiring under acceleration - IanMonty
Just bought this with a 3 month warranty and 60,000 on the clock.

Noticed on a long run yesterday that it was misfiring under acceleration.

Apologies if this is already covered elsewhere - but any ideas to help the mechanic diagnose the problem?

Anybody know a good diesel mechanic in the Colchester/Ipswich area?

Many thanks

Ian
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Thu 8 Nov 2007 12:21
Focus 99 1.8 TDDi misfiring under acceleration - Screwloose
Ian

Is there any visible smoke? If so; what colour?

Do you feel a vibration; or is there a loss of power?

When did it last have a fuel filter?

Edited by Screwloose on 08/11/2007 at 12:22

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Thu 8 Nov 2007 14:45
Focus 99 1.8 TDDi misfiring under acceleration - IanMonty
Hi there

No visible smoke. No vibration - momentary loss of power, feels like a stutter.

Re. the fuel filter - not sure as I have just bought it.

It seems to happen more under 'strong' acceleration i.e. when overtaking. Bumbling along is no problem.
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Thu 8 Nov 2007 14:52
Focus 99 1.8 TDDi misfiring under acceleration - Screwloose
Ian

If there's any doubt, try a new filter and, if that doesn't help; check for loose connexions or chafed wiring that could be affected by engine movement, or get the fault-codes read.
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Thu 8 Nov 2007 15:32
Focus 99 1.8 TDDi misfiring under acceleration - jc2
For a diesel to misfire it must be 1.injector or 2. lack of compression-piston/valves.
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Thu 8 Nov 2007 15:46
Focus 99 1.8 TDDi misfiring under acceleration - Screwloose
For a diesel to misfire it must be 1.injector or 2. lack of compression-piston/valves.


You really think that do you...? I wonder what the other 95% are?

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Thu 8 Nov 2007 16:10
Focus 99 1.8 TDDi misfiring under acceleration - Glaikit Wee Scunner {P}
If the car has a 3 month warranty, why not give the vendor a chance to put things right first?
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Thu 8 Nov 2007 16:15
Focus 99 1.8 TDDi misfiring under acceleration - IanMonty
Yes, I am taking the car for diagnostics, just wondered if there was a well know fault that I could point the garage in the right direction
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