weird idle
 

ok i have a stock 91 Gt . it ha flows and a k&n cone. after my car gets hot it idles weird . do you know what it could be?

Wish I could help you out, but you need to be a little more specific as to how your car is running. Saying it idles "weird" is too broad of a description.

like a rolling idle? it goes up and down, up and down. that kind of idle? if so check for vacuum leaks, loose mas air boot. if those are ok, i would replace the idle speed motor. VERY common on ford FI's.

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90 LX Black on Black
Flowbabies, h-pipe, Mac unequal shorties, K&N, Hurst, subframes, Motorsport springs, MSD coil, 3.55's

Yes you are right, when it gets hot it idles real rough. It actually sounds kinda cammed at times.(thats the type of idle) "its a rolling idle"But it only does this after i have drove it for awile. And if it is real hot it will almost die. Then when i get going it does fine. thanks to all that can help. i think one of the plastic vacuum hosses that goes to the EGR valve broke. Is there any way i can somehow check the Vacuum for leaks?