I have a Granada 2.9ltr 4x4 1989, I love it to bits it seems to have a
small problem that I hope someone in here can help me out with . It has
developed a "stutter" This stutter occurs in all gears however clears
around two n a half thousand rpm I was advised by the AA man to change the
distributer cap which I have done alas this has not made any difference.
Before I go ripping out and replacing all the electronic bits n bobs such
as spark plugs and leads I thought Id check in here and see if anyone has
had a similar problem and managed to fix it
Thanks for your help in advance
three things to check at no cost,
there's an air valve on the side of the plenum chamber (the bit on top, with
fins and the ford logo) these get full of oil and dirt and then stick and
don't seat properly. remove it and clean it out.
there's a potentiometer on the side of the throttle valve, this tells the
electronics how wide open the throttle is, these wear and the carbon tracks
out and gives false readings. take the top off and clean it.
the air metering valves just after the air filter can stick, clean 'em.
i agree, plugs should be replaced regularly in accordance with service, and
a new set of leads never hurt any engine. (except a diesel)
a tune up sounds like a good idea, "stuttering" can be attributed to lots of
things, so check your CO levels are ok, check the ignition timing, replace
the rotor arm along with the distributor cap, a new air filter if the old
one is dirty will help no end...as will a new fuel filter esspecially on
these injected 2.9's
once you have done all the "servicable" items can you start looking for
faults if its still present.
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