Thursday, October 6, 2011

98 fiesta over revving when changing gear or clutch pressed in?

hi, i have a 98 fiesta 1.3l encore. it is over revving when the clutch is pressed in but it doesnt do it all the time. it seems to do it when i rev the engine e.g moving up a hill in traffic. when i turn the engine off and start it back up it will clear and might not do it again for the whole day. i had a problem with one of the sensors which i was told it was the %26quot;lamba%26quot; sensor so i sprayed some wd40 in it to try and clear it which it did but ever since then the problem of the engine over revving started! id appreciate any help. thanks!
98 fiesta over revving when changing gear or clutch pressed in?
sounds like your air idle control
98 fiesta over revving when changing gear or clutch pressed in?
There is an electronic idle valve sensor on the speedo drive on top of the gearbox that makes the engine rev when travelling. This will be faulty. They are expensive to replace take it in and have it disconnected.
The cars just over 10yrs old, time for a new one i think.

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