1973 Mustang won't start when hot

John Whitty

Asked by Sep 06, 2015 at 09:36 AM about the 1973 Ford Mustang Base

Question type: Maintenance & Repair

It has a new Battery, a new Starter, a new Carb. a new Motor and had the
Alternator check and its good. Also no notice when I put on my brakes, the tail
lights are dim., the turn signal work real slow, wiper work slow.

4 Answers


Sounds like there is a bad ground wire. Need to find all of them and make sure the connections are cleaned.

Best Answer
John Whitty

thank you Rowefast for your answer. after reading my own question, I came up with the same answer. thanks again


OK, that solves the wiring problem- did the hard start when hot problem go away? If not, I would guess something is not adjusted correctly with the carb- did a pro do it?- or it is vapor-locking- make sure all fuel lines are clean and protected from heat- and the carb may need to be protected from manifold heat, too-


Try jumping it to get it started, then disconnect the neg. cable at the battery, if the car still runs, then your alt. is working fine...it sounds like a short in the wiring to me.....hope this helps

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