97jeepxj1

Didn't over heat before swapping it all out. Thought I got all the air bleed out of it. But now it overheats while idling and whatever I try to drive it. Never let it get over three quarters of gauge I can cool it back down to a fairly normal temperature with a garden hose flowing through the radiator and condenser thought I got all the air out I stop getting bubbles to the bleeder not sure what's wrong

Kymasabe

Keep it simple....is the cooling fan coming on?

97jeepxj1

Uses a s8ngle hydraulic fan driven off the power steering pump and yes it comes on and speeds up as the motor heats up

dave1123

You didn't install the thermostat backwards, did you?

97jeepxj1

I was positive that I didn't but now I'm not so sure that's the first thing I'm checking I'm a go ahead and slap the original thermostat back in it since I know it worked before

97jeepxj1

Well ****....got in a hurry yesterday to get it done since I drive it for work and looks like I did in fact pop the tstat in backwards without noticing

dave1123

Good move! Once in awhile a bad thermo gets thru quality control. Funny, I get the Rockauto Monthly Newsletter and this month's trivia question was "What is a 'Jiggle Pin'?" Answer? A pin installed in the air bleed hole of a thermostat designed to eliminate deposits from blocking the vent. I haven't seen a jiggle pin in a really LONG time!

Huh! Overlapping posts!

97jeepxj1

My oe and my stant both have the hole and jiggle ball

dave1123

You must have the 4.7 right? The Stant Superstat for my 4.0 has neither. #45359. I ordered an extra one just to have it on hand. Why don't they include a gasket anymore? Because they fit a lot of different stuff.

97jeepxj1

Yep 4.7l