Hesitant Ford Fiesta Diesel

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Sat 17 Sep 2005 19:50
Hesitant Ford Fiesta Diesel - emma
I have a T reg 1.8 diesel, occaisionally during acceleration the engine hesitates, similar to missfire in a petrol engine. Looking through the rear view mirror there is signs of black smoke. The problem seems to occur at the same engine speed. Typically 25-30 mph in 3rd gear.

Has anyone any ideal what may be wrong.

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Sat 17 Sep 2005 21:09
Hesitant Ford Fiesta Diesel - Richie-van-gti
is it a turbo diesel? The puff of smoke could be the turbo kicking in.
Either way I would reccomend running some injector cleaner through and getting it up to limiter in 3rd to blast away any build up. Also if its due a service then make sure its a full one, all filters, oil etc.
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Sun 18 Sep 2005 12:08
Hesitant Ford Fiesta Diesel - emma
Thanks for the info.
It's a straight diesel - no turbo, and it has just been serviced:- oil, filters etc. I will try some injector cleaner.
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Sat 24 Sep 2005 20:15
Hesitant Ford Fiesta Diesel - emma
I tried injector cleaner, this has had the effect of producing clouds of smoke from the exhaust at the same time still hesitating. Then coming home from work today I noticed a peculiar light knocking sound eminating from the engine compartment when accelerating. Has any one any idea what might be wrong or is it terminal!!!. The car has done 106,000 miles.
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Sat 24 Sep 2005 21:11
Hesitant Ford Fiesta Diesel - jc
Could be an injector "hosing"-ie.sqirting not spraying.Go to a diesel specialist and enquire about having your injectors serviced.
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