Hard starting when hot

Tiny
TATTOOEDR6
  • MEMBER
  • 1995 NISSAN HARDBODY
I have a 1995 Nissan hardbody. I have recently put a brand new battery and starter on it. When you get to normal operating temp or drive around for awhile and cut the truck off it will not start back up. The engine barley turns over giving the impression of a dead battery. If you let the truck cool off it will start back up just fine. I am lost I don't know what to do. There is no issues at a cold start or no drive ability issues. Just the engine not wanting to turn over after driving.
Monday, October 18th, 2010 AT 7:03 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This is most likely a failing starter but the fact that you just put it on is a little odd.

So, let's start with checking the voltage at the starter when this is not cranking quickly.

Basically, if the starter is getting the proper voltage when it is slow cranking and cranking normal then the starter is getting heat soaked.

So, I am attaching the wiring diagram below which will help with testing the voltage. If you are getting 12 volts at the starter on both wires when cranking when it is cranking slow then the starter is the issue.

Here is a guide that will help with testing the voltage:

https://www.2carpros.com/articles/how-to-check-wiring

If the starter is new, then more than likely the starter is getting hot from the engine, and it doesn't not operate well when it is hot. This is a common issue on these, and you can solve it by putting heat wrap around the starter and solenoid and that will most likely solve the issue.

Please let us know what you find with this. Thanks
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Saturday, February 19th, 2022 AT 6:50 PM

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