jumpy/smoky F. fiesta, injector leak?

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Fri 2 Feb 2007 15:00
jumpy/smoky F. fiesta, injector leak? - leoo28
hi guys :)

car is a ford courier which is just the fiesta with a box stuck on the back of it hehe, diesel 1.8 about 9 years old.


in 2nd, 3rd and 4th it kangaroos when trying to accelerate, most noticable when going up a hill, but when i reach high revs in a gear it's nearly not noticable, noticed that when it kangaroos up a hill puffs of darker smoke come out timed with the kanagarooing.

opened up the bonnet, around the right injector there is a lot of dark soot (lost for the correct description, it's not oil, but black stuff on the metal)


i've been reading, alot, what i've found so far is that dark smoke is too rich air mixture....i know the air filter is due a change, would that by itself be enough to cause the problems? when it kangaroos by the way there is a loss of power.

Also found that maybe air is getting into fuel? injector leak (could the black around the injector be just that?) fuel filter need to be changed?

any opinions would be most welcome :)

thanks

Leo
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Fri 2 Feb 2007 15:36
jumpy/smoky F. fiesta, injector leak? - Screwloose
Leo

If it hasn't had a fuel filter for a while, change that first. Beware cheap pattern filters as some have under-size pipes and the quick-release connectors can then leak air.

Soot leaks are rare on these; is that mark diesel spitting from a split "condom" on the spare leak-off stub of injector 4?

Could also be a stop solenoid fault; [it's PATS, so access is hard] but check all wiring to/from the pump for loose connexions.
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Fri 2 Feb 2007 16:29
jumpy/smoky F. fiesta, injector leak? - leoo28
thanks for the reply :)

don't think it's had a new fuel filter for ages, will go ahead and get a new one and change it (once i find an online manual on how to change one hehe, it looks straight forward though, it's a bosch filter, kind of the size of a small camping gas cylinder)

i've had the bonnet open and had a good look to see if anything is leaking but couldn't see anything, that soot mark has been there since i bought the car a year ago, but has got worse since the last time i opened the bonnet about 5 weeks ago.
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