Ford Fiesta flat spot 3000 revs no warning lights

Car: Ford Fiesta
Variant: 12.5 zetec
Model Year: 1999
Categories: Running Rough, Starting & Power Loss
no fault codes on snap on machine,changed plugs,leads,coilpack,fuel filter,maf sensor,accelerator sensor.starts ok runs ok until 3000 revs under load can drive though by dropping down gear and accelerating HELP
Posted: Nov 21, 2011 (12 years ago)
Check all vacuum pipes are secure and not cracked or perished...
Posted Nov 21, 2011 (12 years ago)

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