Re: Zetec surging at constant throttle and reduced power
> "" wrote:
> > can't say off hand i know what the problem is, however i can
> > tell you that i
> > have heard of this problem before on focus zetecs, i believe
> > its a common
> > fault that ford are aware of so it might be worth a phone call
> > to your local
> > (friendly..ha ha) dealer.
> > regards.
> > "rennocneb" <UseLinkToEmail@AutoForumz.com> wrote in message
> > news:email@example.com...
> > > Hi i have a 2001 ford focus zx3 with the 2-litre zetec
> > engine. The
> > > engine has a bad surge in it when at constant road speed or
> > when
> > > accellerating. This surge can be made much better by
> > plugging the
> > > vacum line going to the egr. The car has been checked for
> > vacum leaks.
> > > had an exhaust replaced and fuel sendr replaced. I have had
> > it to
> > > several mechanics that are unable to determine the problem.
> > The car
> > > also seems to run rich one mechanic told me the long term
> > fuel trim
> > > was at 18 and the car performs very sluggishly. Any advice
> > would be
> > > very much appreicated.
> > >
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> Well my local dealership is basically ** so im left hunting. I have
> been told its a fuel deleviery issue but also that its an egr issue
> which i beleive more
ok it could be an egr prob ... but if you unplug the egr and you say its
better ?.... is it gone completely? if not its not the egr.....
first thing i would check is the catalytic convertor... car is rather
new for it to be shot but .... if it is plugged i can do this. you had
fuel sender replaced? how about the fuel filter? air filter? plugs?
start with basics. does it idle perfect? or is idle affected at all ...
did problem get worse gradually? or appear overnight?.