Hi there i have a fiesta mk4 1.25 16v couple of days ago i discoverd a self reving problem every time i put the clutch down and go to change gear its like i still have the throttle to the floor.... so i changed the IDLE CONTROL VALVE but it is still doing the problem ?? any ideas thanks ?

SOURCE: 1997 buick lasabre custom

It sounds like you have a vacuum leak or intake gaskets leaking. Try this. Start the engine and let it reach the idle it want to go to. Get you a can of Brake Clean and spray it around the intake manifold (it on the top center of the engine, you may have to removed a plastic cover) If the engine idle changes up or down then the intake gaskets are leaking hence your vacuum leak. I hope this will help you.

SOURCE: how can i change my spark plugs on my fiesta mk5 1.4 16v

look up by the fuel rails and you see these funny looking things normally they have two wires on them and the spark plugs are under those and in most cases you have to remove the fuel injecter rails in order to get access to the plugs

SOURCE: Erratic Idle problem in 91 accord

THE DISTRIBUTOR WILL CAUSE THIS PROBLEM IN A HONDA TRY A KNOWN GOOD ONE .

SOURCE: i have a 98 saturn sl1,when i put the clutch in to

spray the intake manifold with carb cleaner, right behind the alternator. it is common spot to leak and cause this

SOURCE: High Idle when shifting. It goes up and down idle on it own.

dear friend-the hyundai products has the future of returning to idle slowly so any changes wil not bring it down quicker unless you can find away to confuse the ecu.