my ford escort keeps revving up when i change gear what could be wrong? on 1999 Ford Escort

I have changed the throttle semsor, the air flow mass sensor and the idle valve but none have worked

Asked by for the 1999 Ford Escort
Agree with greg, pcv system on the 2.0 SOHC engine gives a lot of problems. Dont know which engine you got!!!!!
it a 16v 16L
NO, not in a 1999 Escort! Dont matter anyway. Tell you what you need to do, take it to a mechanic that can check it out for you hands-on!!
2 more answers , 2 more comments
poss vac leak, do you have any codes?
sorry there are no codes
Manual or auto trans.? When sitting still does the idle race or is it normal? How many miles on it? Clutch slipping?
its a manal and i think it is the clutch because you casn put it in to gear and then take your foot of the clutch and the car will still run
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