From time to time my engine does not start. The starter does not even rev. The Starter seems to be ok. At least a pro tell me my starter is fine…
I analyzed the problem and here are the symptoms.
Always on hot days, not after a very short drive, or after a very short drive with a already heated engine.
Usually with water temp a bit above 220F. Like 225F 230F on running motor. The temp rising a little bit on and after ignition cut.
Then the car wont start. I usually have to wait until the temp cool down below 150F. It seems to be linked to the temp as I can predict if it will start or not reading the gauge.
Can there be any kind of electronic temp security programmed? Can it be overridden as I think that I never went into too high temperature? Should I monitor temp with other gauges (like one more for water and one for oil?). Do I have one gauge dead?
Thanks for the Help.

 

If you are saying your starter will not run when hot (your wording is quite confusing) and are asking if there is some security that keeps the starter from working when hot, then no there is no such security. Sounds like you have a bad starter or if you have header that are causing heat soak, then it might need some thermal protection.

Oh, and if you are referring to the 89 IROC in your sig, you are posting in the LT1 forum by mistake.

 

Damn wrong forum, can a moderator move the subject ?
Typically my starter wont work when water temp is hot (230-240
), and will work back when water temp is very low (150)...

 

Next time it doesn't start, give a starter a rap with a hammer. See what that does. Sounds like your starter is getting heat soak.

 

I need totry with a real hammer. But with just something a bit heavy it never worked...

 

I agree, it sounds like a bad starter to me as well. To be more specific, the soleniod on the starter. That has windings that energize when you turn the key to start. It creates enough magnetic force to over power a strong spring and engage the Bendix(starter gear) with the flywheel teeth. Once fully engaged, the starter motor turns to crank the engine. If your getting no click(soleniod pull) when hot, my money is on a starter. They don't really sell soleniods seperatly, like they did in the old days. It's best to just by a good quality replacement starter.

 

my 70 gto did the same thing i wired up a ford starter soleniod up on the fire wall
and never had a problem with starting after that. summit sells a kit so you can do that i hope that this helps you.

 

Ok, thanks for the precision. I think I am gonna put a mini starter in it. It is not too much expensive. Changing the solenoid must cost quite the same at leat in time spent.