89 5.0 Mustang

So basically wat is goin on is every once and a while, i will come to a stop light and my idle will go up to about 1400- 1900 rpm. It will also do the same when i shift.(i just hold the clutch in longer and it goes to that spot? Now i heard it could be a vacum leak or my tps sensor. My tps senser was brand new about 3months ago.(Its an edelbrock) So i just wanted some of your thoughts on my new problem.

Any help is appreciated Thankyou

Oh and i just read the other post a few down and could it be my egr cause i did get a code

331StrokerFox

Did you check the IAC with a volt-meter? and I dont know how much an Edelbrock IAC is, but if it is more than $30 you got ripped off.

89 5.0 Mustang

I sound really stupid but wat is an iac?

blkonblk5.0

Idle Air Control valve

89 5.0 Mustang

Oh thankyou. i don't think i got a new one so it is stock. Do those usually go bad. How mush is a new one

mattdel

i sense a vacuum leak.

blkonblk5.0

try cleaning it out first before you spend 80 dollars for a new one

89 5.0 Mustang

I was told the vacuum leak might be from the brake hose.
And how would u go about cleaning the IAC and Egr

FivePointOhh

carb cleaner

89 5.0 Mustang

So just spay it in there?or...
Sorry this is embarrrassing and i know i sound stupid but i have never delt with any of this. I have been looking in my chiltons book and i cant find the IAC. Where is it exactly?