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-   -   02 GT Not starting (https://www.allfordmustangs.com/forums/4-6l-talk/1081837-02-gt-not-starting.html)

drew.pansza88 07-25-2019 09:14 PM

02 GT Not starting
 
I replaced the plugs a month ago and one of them was stuck to the coil and I had to basically rip it out, which stretched the coil. I managed to get it on the plug still but it started sputtering at low rpm when giving it more throttle. Then last week I was driving around and I came back home it started sputtering and what felt like slipping. So I parked it and it almost died before I shut it off. Now it cranks but won't start even when giving light gas.

huberoy123 07-25-2019 09:43 PM

Did you consider replacing the stretched coil?

drew.pansza88 07-25-2019 10:17 PM

Quote:

Originally Posted by huberoy123 (Post 9240611)
Did you consider replacing the stretched coil?

I was going to if it was going to run wonky but it ran just fine up until then. I'm gonna go see if I can just get one tomorrow.

wmburns 07-26-2019 09:05 AM

Just wondering. You are aware that you can buy just the replacement COP boot insulators? The kit includes new springs. Much cheaper than buying a whole new COP.

1996+ Crank with no start check list
https://www.allfordmustangs.com/foru...e.html#2984838

drew.pansza88 07-29-2019 07:12 PM

It just started after I unplugged the air flow sensor. Obviously idled funny so i plugged it back in and it idled fine then started to have a very slight but odd feeling. Like it was barely misfiring. When I shut it off and tried to start it again, it wouldn't.

wmburns 07-29-2019 09:23 PM

Quote:

Originally Posted by drew.pansza88 (Post 9240989)
It just started after I unplugged the air flow sensor. Obviously idled funny so i plugged it back in and it idled fine then started to have a very slight but odd feeling. Like it was barely misfiring. When I shut it off and tried to start it again, it wouldn't.

This says to me there's a vacuum leak. Why? When the MAF is disconnected the PCM uses default values that work well enough to allow the motor to start.

If there's a vacuum leak this causes the MAF to read low. Perhaps too low to allow the motor to start.

Of course a dirty MAF could also create the same situation.

Since this problem got worse while doing work, I would also double check to see if there are any blown fuses. Especially fuse F2.2 and F2.8. Confirm there is +12 volt key on power at the MAF Red (RD) power wire.

Do you have an ODB2 scanner? If so this could make short work of the problem.

ForScan ODB2 scanner w ELM327 USB
https://www.stangnet.com/mustang-for...elm327-usb.57/

docjohn88 07-30-2019 12:41 PM

^^What he said, if you don't have one , find a buddy who does.


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