Hot and not turning over

toyota
pickup

#1

When my 1991 Toyota p/u w/3.0 V-6 is fairly hot the starter will not turn over. Just a click. Starter and battery are excellent otherwise. I allow cooling 45-90 minutes then it starts right up.

Any suggestions what to do?


#2

How old is the battery and what’s the battery output? If the battery checks out OK the starting motor probably needs to be replaced.


#3

Thank you but this problem has persisted after several new batteries and starter replacements. Seems to be an intermittent circuit problem??


#4

My guess is the solenoid or starter being heat soaked.


#5

My guess is that the starter relay has become heat sensitive. It’ll be found in the relay box under the hood, probably on the top of the passenger’s wheelwell.


#6

I have thought of that. Wonder if it would be slow turning as it cooled or heated? Works all or nothing.


#7

Thanks. I will consider that. Other suggestions have been the voltage regulator, the starter or a sensor all heated related.


#8

I agree with the starter. For some reason I was thinking you’d already changed the starter, but I must have been thinking of some other post.


#9

Yes, I have changed out the starter several times. Seems to be circuitry issue or the starter absorbs heat. Starter heat would be a design issue it seems to me. So do components become heat sensitive over time?
3 unknowns are voltage regulator and starter relay and maybe a sensor? Appreciate all the feedback.
Probably should have a specialist look at…