Here's what's going on. I was driving home and my Tahoe shut off.When I tried to crank it it ran extremely rough and only for a few seconds would not idle. after walking home and getting a ride back to my vehicle it cranked just long enough I could get a quarter mile to my house running extremely rough as if it was missing. I dug out my code reader and it read p1258 overheat protection mode active. I replaced the coolant temperature sensor then left the negative cable off for 2 hours. The codes are gone along with the check engine light but it still cranks up and runs extremely rough and shuts off after just a moment and then will not turn back over.
My car has 150000 miles.
My car has an automatic transmission.
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