no heat!

[91explorer1009]

91 explorer 4.0 lit.- My heat does not blow hot anymore, I drove it for about 2 hours and the whole ride it was barely blowing warm. The temp gauge never moved the whole time and was on, if not below the C the entire ride. There is coolant in the recovery tank, and I am not sure what the problem is, (thermostat etc.) Also where is the thermostat on the 91 explorer located and how easy is it to replace. Sam

 

[jimbo74]

sounds like the thermostat may be the problem.....

 

[91explorer1009]

thermostat

Where is the thermostat located? And is it easy to replace?

 

[marragtop]

The thermostat is on top on the intake at the end of the upper radiator hose. First remove the air intake assembly, then the upper radiator hose, then the 3 bolts that hold the therm housing on. I believe all the bolts are 10 mm. One of the housing bolts is a bit difficult, but if you have a thin wall 10mm you should be ok. When you buy the thermostat, make sure you get the o-ring gasket as well. Normally that is sold seperately.

Mike