Seeking Help - Hot Start Issue

[Pony named Pearl]

I acquired a 1969 Mustang from a family member to restore. It’s automatic and the engine is a 302. Within the past 6 months I replaced the battery , ignition switch, ignition solenoid and the starter. Due to the fact that after the engine warms up the car will not restart. Dead , no crank, no clicking , nothing ! I suspect it is a hot temperature issue but don’t where to go from this point .

Appreciate all suggestions!

 

[89ripper]

Is your battery completely dead and you have to recharge it?

 

[Pony named Pearl]

No , I have to jump the ignition solenoid to start the engine or wait for the problem to cool down and the engine starts without difficulty.
Thanks for replying.

 

[89ripper]

I dealt with hot starts on my mustang..my starter would get hear soaked, but you replaced that so my next question is how good are your grounds/ ground wire(s)?

 

[Pony named Pearl]

I dealt with hot starts on my mustang..my starter would get hear soaked, but you replaced that so my next question is how good are your grounds/ ground wire(s)?

I will have to give the grounds another look. Thanks for the suggestion. I’ll get back to you.

 

[89ripper]

Ok even if the wires "appear" good check continuity on them

 

[limp]

Do the battery cables look like they are from 69? The cable underneath the insulation can deteriorate ... If they look old it would not hurt to replace them..

 

[Pony named Pearl]

All have been replaced. Thanks for your suggestion!!

 

[89ripper]

All have been replaced. Thanks for your suggestion!!

Thats stellar...but did it fix your problem?

 

[nickyb]

My long tube headers really put the heat in my starter, a heat shield may help.

 

[Pony named Pearl]

Thats stellar...but did it fix your problem?

Not yet, discovered a new problem. The red wire to the regulator broke off the connector. Working on that today

 

[89ripper]

Not yet, discovered a new problem. The red wire to the regulator broke off the connector. Working on that today

Keep us updated!

 

[1988redstang]

I acquired a 1969 Mustang from a family member to restore. It’s automatic and the engine is a 302. Within the past 6 months I replaced the battery , ignition switch, ignition solenoid and the starter. Due to the fact that after the engine warms up the car will not restart. Dead , no crank, no clicking , nothing ! I suspect it is a hot temperature issue but don’t where to go from this point .

Appreciate all suggestions!

I'm having the same problem with my 88. My mechanic friend measured the voltage as I started it with the hot starter and it was drawing over 500 volts. He suggested I put on a high torque starter. I haven't' gotten to it yet, so I don't know if it will work.

 

[89ripper]

I'm having the same problem with my 88. My mechanic friend measured the voltage as I started it with the hot starter and it was drawing over 500 volts. He suggested I put on a high torque starter. I haven't' gotten to it yet, so I don't know if it will work.

Hmmm 500 volts? The battery is only 12.5...

 

[1988redstang]

Hmmm 500 volts? The battery is only 12.5...

It might have been amps???

 

[89ripper]

It might have been amps???

That would make more sense since batteries are rated at cold cranking amps in the hundreds

 

[Noobz347]

How long has this starter been in the car?

 

[Pony named Pearl]

Would like to update everyone that responded to my post. The negative battery post was not grounded to the auto body. The wires from the alternator were replaced because the wires were cut had wire nut for some unknown reason. The dead restart was traced back to the ignition switch harness. One pin on the female wire harness was burned. I am waiting on a new ignition switch wire harness and fingers crossed that was the problem with the hot restart issue. Thank you all for your input.

 

[Blackhawkxx]

I hope that you have found your answer to the hot start issue, it sounds like it. Just to throw it out there, a battery can do the same thing. I had them start and run just fine until you try to hot start it, then if you let it cool down it was fine. Replacing the battery fixed it on two different cars over the years.

 

[RPM Mach One]

I had your exact systems a few years ago which turned out to be a bad battery cable from the solenoid. Even though the cable looked pristine upon inspection.