Truck died

Post by **B.O.B.** » Thu Mar 21, 2019 6:29 am

Dropped my son off this morning and wonΓÇÖt start back up. Started fine and drove about a mile to his school and shut it off to go inside. Came out and wonΓÇÖt turn over. I can smell the fuel and can hear the fuel pump working. Must be something with spark. I am at work now and just getting some opinion on what to check.

Start with:
Check for spark- coil, distributor
Check fuses. What else?

91 mustang efi on original short block

Post by **landshark** » Thu Mar 21, 2019 12:04 pm

Does it just click when you try to start it? fuel pump primes and then click? Is it an auto or manual?

Post by **B.O.B.** » Thu Mar 21, 2019 12:57 pm

Manual, it cranks just wonΓÇÖt catch and turnover

Post by **landshark** » Thu Mar 21, 2019 1:09 pm

B.O.B. wrote:Manual, it cranks just wonΓÇÖt catch and turnover

Someone will chime in thatΓÇÖs smarter than me on it. I would do the obvious which you probably already have. Check wiring under hood to see if something came loose. Ignition wire, distributor wiring, fuses. Pull a plug wire see if it arcs when cranked.

Post by **B.O.B.** » Thu Mar 21, 2019 1:20 pm

Just got back to it and it started. I donΓÇÖt know if I should be happy or mad. IΓÇÖll just get it home and take a look at some things. Maybe fuel pressure regulator went out and flooding cylinders or something.

Post by **crawlercreations** » Thu Mar 21, 2019 3:13 pm

I had an ignition coil do that to me once. Happened twice then I had the tools on hand to diagnose it when it happened the 3rd time. Replaced it on the side of the road and it's been flawless since.

Post by **B.O.B.** » Thu Mar 21, 2019 7:07 pm

I probably should replace it. Got it out of a salvage yard years ago not to mention the car I took it off of was pretty old also.

Post by **ZOSO** » Fri Mar 22, 2019 5:14 am

Ford electronic ignition? the "brain box" can do the same when they get old. along with a coil. they'll work when cold but once they get warm they die.

Post by **Viperwolf1** » Fri Mar 22, 2019 8:25 pm

It's a good idea to keep a complete, spare distributor on board with the mustang EFI. Spare coil is good too.

cw72 · Post by **cw72** » Fri Mar 22, 2019 9:27 pm

My bet is the TFI. Mounted on the side of the distributor. When it gets hot it can act screwy. Happens to me every once in a while when I run it hard mostly. IΓÇÖm running a 90 efi mustang motor as well.

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