My car idles very high.

What is your question?

Every time I turn my car on it idles so high and it started the day after I got the Slave cylinder and Master cylinder replaced,but it does not dye out it will stay started it just seems like it`s going to come out of the hood.

What makes this problem better or worse?

It is worse when the engine is cold

How long has your 1999 Ford Escort had this problem?

A month and a half