Any ZETEC experts here, please can I ask you question

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11-08-2005, 06:34 PM

HYBRiD_T

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Any ZETEC experts here, please can I ask you question

Hi all!

I've changed plugs, leads, CAT and coil and 1.8 Zetec. Its still has a major flat spot from about 3500rpm onwards when under load. I can't figure it out. Any ideas please?

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11-08-2005, 06:48 PM

pee vee

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what year is the car/engine mate?
has it had a new cam belt recently at all!?

they did have a flat spot anyway.
possible air leak?

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11-08-2005, 07:37 PM

fo0q

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i think the fuel pressure regulator has a tendancy to cause a flat spot around the 3500 mark.. try fitting a power boost valve

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12-08-2005, 07:48 PM

16vzetec

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have you put it on a ford diagnostic checker?
could be the maf or ecu

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12-08-2005, 07:53 PM

SimonT

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is it just between 3500 to 4000? or is it after 3500 its just flat as fook?

Mine had a flatspot between 3500 and 4.

Hve you changed your fuel filter?