03redGT

its taking a solid 4-5 tries, then itt putters and shuts off.

70 MACH I

There is a procedure for setting the throttle plate closing with the stop screw, make sure they check it. It sounds to me as if the IAC cannot let in enough air to maintain idle. Or, it IS working properly and there is a connector/harness/or TPS problem. When you come back, they will put a top-Line Tech on it. Repeat repairs are very bad VOODOO for their shop service rating, Ford gets all over their ***, if they fall below a certain level.

John

MustangMafia

Sounds too simple to be true but any chance of bad gas? With my CRX I had almost the exact same problem and it turned out to be some crappy gas (Damn you safeway!). I dunno, just something to consider...

03redGT

outstanding! they told me that wheni come back on monday, they are going to put one of those top line tech things on it! no its not bad gas, ive run it down real low from 3 different gas stations. monday is going to be my 3rd trip there with the same problem.

Dan04COBRA

So they replaced the IAC, and the issue was temporarily gone?

It now sounds like a TPS issue, which for Ford, is an easy fix and shouldn't take very long.

Someone mentioned I would suggest a fuel pump issue, sure that's quite possible, but at the moment it's always best to start with the simple and obvious first, before even considering it may be a bigger issue.

How does your car feel when you go WOT or get into the throttle? Does it still stutter and stumble?

03redGT

at WOT it screams like a piggie. no power loss nothing.

right, they replaced the IAC, and it got better, then it got way worse.

silver03gt

Dude, that sux, your car was running so sweet last week,,, I think you should check your throttle plate stop screw, even if it just gets you by until monday, you could try raising the idle by manually turning the screw in. just a thought

03redGT

dude, its totally not even the idle, its getting the POS started.