after installing the thermostat, i waited about 2 hours before i filled the coolant back up. Should i have waited longer? It started overheating and i realized i forgot to "burp" the system. After comin home and lettin some of the steam out of the radiator, it finally sucked coolant down. But its still runnin between 95 and 125. (my truck runs from 55 - 95 - 125 at red. i dunno if yalls is the same) but its right in the middle of 95 and 125. what do yall think is causin this? could it be that the gasket seal didnt sit long enough and its leakin fluid?

 

When i put in my plenum, i put in a new thermostat (i think it was the 180, i know i wanted it to run cooler). It only sat as long as it took me to do the job. The thermo i bought was a fail safe one. Maybe you just have a badone. To be safe i boiled some water and dropped the new one in to see if it opened when it was supposed to. My truck runs well below 90 now. Rarely gets into the 80's.

 

Take the cap off. run the truck and add coolant as needed. Leave the cap off until it is at normal operating temp.Monitor the level and temp. Add coolant as needed.

 

yeah it finally sucked the rest of the coolant down, topped it off and itruns like a charm now! thanks guys!

 

I am not sure if your temp gauge is in degrees F
or degrees Centigrade (original Canadian truck?)
but it may be that your thermostat is now stuck in the open position.

 

mine reads 130 200 250 ... mine stays at 200 or just a tade past it ...

 

yeah my truck was made in canada, its kinda creepy. but the problem is solved, runs like a champ.

 

Why did you wait at all...? You don't need to

 

Perhaps he used some sealant? That's what I do when I install a new t-stat with the gasket, although I wait about 45 minutes for it to dry. Then again, I'm funny like that, I tell ya!

 

i installed the thermostat with some gasket sealer. i was doin a intake at the same time so thats why it sat there. it took me a while to get the intake installed.