I have an 87 GT 5.0 with around 125,000 miles on it. I was comming back from the shore on the turnpike cruising in 4th doing about 90 and my car jerked out of no where, my RPM's dropped and then went back up briefly but my electrical system stayed on. It happened about 3 or 4 more times. I finally got home and checked everything by eye ( Wires, pluges, etc ) no problems there. I have a small vacuum leak but cruising that leak should'nt have caused that my car to do what it did . what could've happened? HELP ME OUT PLEASE !
Big Problem? Need Help!
- Thread starter Pete3983
- Start date
Dump the codes and see what the computer says is wrong…
Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great.
See http://www.troublecodes.net/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/articles/electronics/eec-iv_codes.html
Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great.
See http://www.troublecodes.net/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/articles/electronics/eec-iv_codes.html
stang2004 said:why in the world would you be cruising at 90MPH in 4rth gear????
not to mention why in the world would u be cruising at 90MPH in generalwant to get yourself killed?
why do you have a 200mph gauge cover in your car??
sorry, couldn't resist.
89MustangGX
I have nothing productive to add!
Sounds like classic TFI module to me -- don't expect to see a code for it or have it test bad, it will just strand you somewhere at the worst possible time. 
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