What is normal for 5.9 water temp?

45Ricochet wrote:
190-200 is about normal. I just put a ew Tstat in this year. Sounds like yours stuck open.
What did the trans shop do? Anything to do with the cooler?

Yes, stock t-stat is 190 degree

45Ricochet wrote:
190-200 is about normal. I just put a ew Tstat in this year. Sounds like yours stuck open.
What did the trans shop do? Anything to do with the cooler?

Local trans shop... I was afraid they messed something up, so I took it to shop that does a lot of small diesel turbo stuff, they put on their big $$$ scan tool and like my cheapie didn't show anything. Which is good.

Local shop couldn't figure out why "O/D OFF" light in dash was lit up. They never saw a exhaust brake before? So wanted to confirm no problems.

Then coming back home temp gauge around 140 got my attention.

Turtle n Peeps wrote:
Something is up like the stat is toast. It should be more than that. Anything between 180 and 200 is golden.

$%^%$# I want to cry...$83.00 for new t-stat. Hoping I don't need more than 1 gallon of anti freeze at $17.00 gallon. We'll see

Thanks for come back

190-200 is about normal. I just put a ew Tstat in this year. Sounds like yours stuck open.
What did the trans shop do? Anything to do with the cooler?

Something is up like the stat is toast. It should be more than that. Anything between 180 and 200 is golden.