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Totally over my 180 tstat

7K views 40 replies 12 participants last post by  JeepCoop 
#1 · (Edited)
So over this thing. All it does is blow coolant all over my shizzie. Why?! I notice when driving in hotter weather my temp runs close to the mid line.

Also, when romping now I have to shut my AC off at times cuz its over the mid line. I'm at 63,xxx so maybe I could use a coolant flush but still, lame.

Can someone please tell me why you all use the 180 tstat apposed to the stock one, and if it's really gonna change anything if I go back to stock?!

Thanks guys,
-Greg



 
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#2 ·
Did you bleed the air out of the system, after replacing the thermostat and refilling the coolant? There is a bleeder screw where the other radiator hose connects to to the engine.
 
#4 ·
Well if there is air in the system, it will cause it to run hotter than normal and possibly push coolant out of the overflow. Mine is at the tint shop right now, let me see what I can do about finding a picture of the location of the bleeder.....
 
#7 ·
Sorry man, phone is messed up and I can'y upload any photos. It looks like an allen head screw in the housing where the radiator hose connects right next to the alternator. Just unscrew the plug and wait until you don't see any air bubbles coming out and only straight coolant.
 
#9 ·
Greg when you check it out take a picture because my engine looks like you're engine I would appreciate a solution.
 
#10 ·
I had that problem with it spraying I got a new coolant pressure cap it fixed the problem. I had 180 tsat for a year then put the stock one back in. I felt little differ in the two tsat. I still have oem one in. But get a pressure cap.
 
#14 ·
Someone find this man a screw! :)
 
#16 · (Edited)
Service information states sometimes it must be added???

Honestly I use a funnel that mounts on the radiator neck and have never had a problem. Some vehicles, you MUST bleed via bleed screw, pt crusisers, 4.7ls, 3.7l but I have not had a problem allowing it to run and burp with the funnel installed and 1/2 full of coolant.

It does sound like an air bubble concern.

BTW it also mentioned that it "should be" in the outlet area in the vicinity of the hose. It will look similar to a brake bleeder if it is infact there.
 
#18 · (Edited)
Coop bleed that thing! I'm sure you've got tons of air in there. Here is my water pump when I changed it out a couple months back. The bleed plug is the shiney Allen head to the left of the thermostat seat in this pic(it'll be to he right on the jeep). Remove this plug and fill the Rad until coolant flows out of it, replace plug, turn heat on and run the jeep up to temp without the Rad cap on until all the air bubbles dissapear. Cap it and go! Watch the overflow tank for a couple heating/cooling cycles as it may drop as some residual air is bled.
 
#22 ·
try changing the cap. mine did that 2 when i installed the 180 tsat but after changing the cap. it fixed it. stant locking cap from local auto store

 
#24 ·
Cooled down! Unless you wanna look like Sloth from the goonies!
 
#26 ·
Just make sure when you think its cool enough, squeeze the upper Rad hose and make sure there's no pressure.
 
#28 · (Edited)
You could try letting it fully cool overnight and try it again, or try getting it up to temp and then try to just bust the bolt loose and remove it when cool, use a penetrant like Freeze off or PB Blaster, or break out the hot wrench and heat the area around the bolt. More than likely its just corroded in there(last resort).
 
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