My 2001 mustang gt dies after I start it - 2001 Ford Mustang GT

Sounds like fuel problem. Lack of fuel volume.

Re;2007 mustang will turn over and even start but dies out immediately a if you killed the ignition. Engine cranks & starts,stalls w/key released to 'run' position ??

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Sounds like the idle control valve. The same thing happened to my Mustang and that was my problem.

So I can use my 2001 Mustang 4.6 L that changed the ignition out and then I changed the computer out now that's flashing or it won't let it start and it starts to die

You have a defective alternator most likely, have it tested by any Autozone it is free.

Undo the battery for 10 minutes, plug it back up, let the car sit for 20 minutes WITHOUT trying to start it, then try to start it. it should work.

I have a 2001 mustang gt with ac i dont have air comming out of the front vents so i bought heater controls and no difference then i found a yellow vacume line off but cant find where it goes can any one help me !!!!!! thanks mary

i assume that by jet you are talking about injecters. if so then yes it is fine

Need to check for any loose belts first .

The firing order is = 1-3-7-2-6-5-4-8