01GTvertible

clogged injectors?? i have an 01 f-150 that did the same thing your stang is doing. ended up being a fuel delivery prob. good luck with it.

jdaniel

I drive my car everyday in 100 degree weather and it runs BETTER than a champ! It doesnt get ET times that I would like in the quarter but weather does have slight affects.

WHT00GT

i see that is says your car is "still stock", is this true? what grade and supplier of gas are you using?

PRmustang

The car is still stock, only modification was a home made CAI that I removed to see what happened. After I removed it, I replaced the stock air box with a K&N and the problem is still there but less pronounced. Other than that i replaced the stock cats with two magnaflow high flow cats, which did not eliminate the problem either. I'm using 87 octane fuel from Texaco or any other major brand of gasoline (Shell, etc.).

Sidewayz6.0

Mine has been doing that for years now. I've tried everything I could think of, and nobody has any ideas about it. The only thing I found is that I had 87 in it one day, and decided to go to the track. I still had 1/2 a tank of gas, and I filled it the rest of the way with 100 to even it out some. For the rest of the time, it didn't have any problems. Try throwing a few gallons of 100 octane in it, and see how it responds.

jdaniel

LOL 100 octane!!! Jeez talking about burning up some valves! LOL

Dan04COBRA

Huh, he won't hurt anything by using 100 octane.

Sidewayz6.0

Okay JD...Time to put the crack pipe down...........

WHT00GT

try 93 first and see if that does the trick... if not, try to get it to a dyno and get your a/f ratio's to see where you stand.