boothay

When I stop at red lights or stop signs my stang shakes and or acts as though it may shut off by itself. I have changed the fuel pump, fuel filter, new motorcraft plugs , had all the coil packs checked changed one, new intake manifold, new air filter, cleaned the mass air flow sensor, and still no luck. Guys help me out gimme some things I could do to help I just want it to stop the shutter at idle everything else is fine.

Thanks

Chopper

What's the idle speed?

If it's fluctuating or lower than normal the IAC might need cleaning or replacement.
Do a search for the procedure.

boothay

I have changed one of those before , but its as if its looping alittle. I looked at the tach while its doing it but the th needle is still doesnt jump up and down and is throwing no codes.

johnr2001gt

I would also be looking for a vacuum leak.

boothay

Ok kewl , how would I go about finding the leak because alot of people told me that it could be that. What would be the easiest way to find the leak