thermostat problems- please help asap-URGENT

[1forsnow]

I HAVE A 1999 V-8 EXPLORER. TODAY I INSTALLED A NEW THERMOSTAT. I AM HAVING PROBLEMS GETTING THE THERMOSTAT TO SEAT RIGHT. I KNOW I HAVE THE RIGHT ONE. EVERYTIME I THINK I GOT IT, THE DAMN THING LEAKS WHEN I FILL IT!! DO YOU GUYS KNOW IF THE GASKET IS SUPPOSED TO GO BETWEEN THE HOUSING AND THE THERMOSTAT OR THE BETWEEN THE ENGINE AND THE THERMOSTAT. I KNOW IT SOUNDS CONFUSING, BUT I AM SAYING IT RIGHT. NEED HELPM ASAP. THANKS

 

[Jason_25]

Ok the gasket is supposed to be in between the thermostat and the engine. The gasket is supposed to be stretched around the outside of the thermostat.

 

[Mbrooks420]

I hate caps

 

[1forsnow]

thanks for the reply jason25. but what you described is for a v-6 engine. i have a v-8. the t-stat housing and gasket are totally different.i also have a v-6 explorer and changed out the thermostat. that was a piece of cake. thanks anyways.

 

[mrboyle]

It has been a while since I changed a t-stat on a 5.0L, but there is an easyway to determine where the gasket is supposed to go. Look at the housing and at the manifold, one will have a slight lip where the t-stat rests. If the lip is on the manifold, the t-stat goes on the intake and the gasket goes between the t-stat and the housing. If the lip is on the housing, the t-stat goes in the housing and the gasket goes between the manifold and the t-stat.