Won’t start at 85 degrees or warmer

[Mrpedo]

new site I have a 2003 ranger starts great when ambient temp is below 85 won’t start above 85 I replace both cooling temperature sensors

 

[Uncle Gump]

Maybe move higher up the mountain?

Lets be a bit more specific...

Is this a cranking issue or does it crank fine.

85 degree is not really a temp that causes heat issues with electric stuff.

Once running... does it run good? No misses... no black smoke... no lack of power?

 

[Mrpedo]

And yes I live on a mountain a mile above sea level in Butte Mt. Approx. below 85 ambient temperature it starts, runs great no over heating, as stated earlier change both cooling temperature senors, I tried to start the ranger 40L turns over sputters sounds like no fuel, once the ambient temperature goes down starts runs no issues

 

[rusty ol ranger]

And yes I live on a mountain a mile above sea level in Butte Mt. Approx. below 85 ambient temperature it starts, runs great no over heating, as stated earlier change both cooling temperature senors, I tried to start the ranger 40L turns over sputters sounds like no fuel, once the ambient temperature goes down starts runs no issues

Ive seen fuel pump relays act goofy like that