Hgh revs

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Bobby Bewl - 17 Jul 2008 19:52 GMT

My Ford Focus 1.4 (02 reg) high revs when driving and when stationary
sometimes. Does not do all time but when it does if you touch accelerator
slightly doesn't help just increases revs even more.

Diagnostic shows nowt, nevertheless changed speed sensor, throttle position
sensor and idle control valve and still no joy.

Any ideas please?

Bobby

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Backyard Mechanic - 20 Jul 2008 16:15 GMT

> My Ford Focus 1.4 (02 reg) high revs when driving and when stationary
> sometimes. Does not do all time but when it does if you touch
> accelerator slightly doesn't help just increases revs even more.
>
> Diagnostic shows nowt, nevertheless changed speed sensor, throttle
> position sensor and idle control valve and still no joy.

Probably an intermittent vacuum leak, follow the tubing from the intake
manifold vacuum port while idling. do a gentle tug test of all fittings
and connections. ESPECIALLY plastic tee connectors.

Sorry you spent all that money, but hey... someone else will read this
and save theirs.

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Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!

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Trigger - 23 Jul 2008 20:01 GMT

>> My Ford Focus 1.4 (02 reg) high revs when driving and when stationary
>> sometimes. Does not do all time but when it does if you touch
[quoted text clipped - 9 lines]
> Sorry you spent all that money, but hey... someone else will read this
> and save theirs.

Well, I checked for vacuum leaks and ended up taking the car into Ford as
mobile mechanic could do no more with his primitive diagnostic machine. It
was he who changed the TPS, which made little difference.

Ford says:

Carry out full I.D.S. test locate T.P.S. fault, carried out further test,
rework T.P.S. and adjust voltage at idle and retest.

...and now everything is tickerty boo! I wish I had gone there in the first
place, most probably saving money on parts etc.

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