Engine/Transmission (1994 - 1998) engine temp

[DISPATCH]

my brother has a 97 5 spd 2500 his temp gets up to 190 then drops to 140 and stays there a while then climbs and falls is this just the thermastat is it a problem is it normal ??

 

[DISPATCH]

oh ya what is normal operating temp for that truck

 

[CumminsPower98]

I would say the thermostat is indeed bad. As far as I know it should be a 180º t-stat.



Mark

 

[y-knot]

Sounds like you have a sticking thermostat. I had one do the same thing, every once in a while it would stick, and cycle the same way. Went to Cummins dealer and got a replacement thermostat and never had another promblem. Good luck.

 

[DISPATCH]

what thermastat should i get temp wise? how much are they? easy to install???

 

[Andy Morrison]

mines done the same since new - nature of the beast.

cummins has a revised thermo that will correct if it really bothers you.





Andy

 

[DBentley]

I had the same trouble with mine when i first got the truck last winter. Did a napa t stat and had the same symptom cycling 140 to 190 every few min. So i get the improved t stat from cummins and get it in and its the same cycling as before. I have learned to live with it. I have a friend with a 97 and his does it to.

 

[SOOT]

Nature of the beast. My 97 does the same thing.

 

[bmoeller]

Originally posted by MMclain

Nature of the beast. My 97 does the same thing.

Same here.

 

[gcorron]

Juan Motime.

Same here. Temps haven't been out of the 20's in a week, learned to wear a coat.



97itis, I guess.

 

[mikel]

Normal

It's normal but annoying. My '95 does it too.



Mike

 

[DISPATCH]

thnks for all the imput guys i guess it is just the nature of the beast

 

[TJMoor]

Mine kept doing this too, I tried several thing, differant t stats and all. .

I drilled a little bigger hole in the flat , around 1/8 inch and now, it comes up to temp and stays steady, as long as the temp guage is working...

Terry