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New user here. reaching out to the family of experts and enthusiasts.
I have a 91 pickup, a particular issue has been occurring. After a long day of driving
the truck will just not start, all electrical comes on, but nothing turns over, there is no clicking noise either.
BUT if i sit for an hour or so, then it turns back on. Wondering if anyone can point me in the right direction on this.
many thanks.
Any Aftermarket skid plates they can really hold the heat?
I would look towards the neutral safety switch after the transmission and truck get heat soaked something moves enough to cause an open circuit.. Any place between the neutral safety switch and starter solenoid the wire can open causing a no crank issue
Another place The Starter Solenoid might get hot enough the plunger can not move hence no click (So many Poor quality rebuilds )
the same with the major ground connection getting hot enough to open the circuit .
All of these will work again when the cool down
The starter is not energizing something attached to the engine or transmission .
any engine or transmission problems you would still feel things try and turn .
the last thing anyone wants is to crawl under a very hot truck
Ambient are Temperature plus the heat coming off the road surface .
thanks for weighing in, this is a great starting place for me to start trouble shooting it out.
much appreciated.
Just a thought any of the Main Ground and Positive lead to the starter if they are still original could just be getting old and brittle and the resistance increases when heat soaked.
These Long trips when things get Hot can cause strange things if you normal use is 50 to 60 miles is a big trip.
I've noticed this issues on jeeps and my buddy's Porsche boxter. In the jeep world it's "heat soak." Engines running hot for a long time, that heat soaks into things that shouldn't be hot, then once you part and there's nothing actively cooling those things, the engine doesn't start. On jeeps it's typically the fuel rail that's the issue, and wrapping it in foil or getting a better one solves it. As far as our trucks are concerned, I would leave the truck running for 10-15 minutes after a long trip and let the truck cool itself off before cutting it off. I don't have the expertise to tell you exactly what is causing the issue, but doing this will prevent it from happening in the future. Hope this helps some.
I would say heat soak too as I am experiencing this this summer....but...
He said no click sound, mine clicks (the relay not the starter) but no crank over.
I fix it the first time, 95% of the time, by hitting the side of the starter 2 or 3 times with the wood handle end of a 2# hammer .
Another place The Starter Solenoid might get hot enough the plunger can not move hence no click (So many Poor quality rebuilds )
This exact thing has started happening to me this summer. I replaced my starter in november with a denso reman.
Everytime I drive a long time with engine running then turn it off, I can’t start it again until I tap it with a hammer. I think my starter didn’t like when the engine is hot for a prolonged time. You turn the key and nothing happens at all. electronics in truck light up but no crank or nothing.
The temps when it happens are 95+ and only when I have it running and driving for a while. I kept a small hammer in my truck to get it going when it decides to not start.
Just got my warranties denso in the mail today and i’ll actually be installing it tonight. Sounds like your having the same problem I am.
Aug 19, 2021 | 07:08 AM
