Hi i have a nother coolant issue. Its a 99 cherokee 4.0 aito 4wd. i just replaced thermostat (2 of them both 195) coolant sensor thermostat housing upper rad hose flushed whole system. The problem is when driving it stays 1 line above 100. But i let it hit 210 last night the therm. opened but the top hose had no pressure but it was hot and the top heat hose had no pressure but the lower did what could it be i cant get anymore antifreeze in there it doesnt over heat any help please.
after 10 miles of high way
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Rad cap maybe.

 

Tried a 13lb and a 16 lb and both didnt work any other suggestions

 

What do u mean "didn't work"? At 210 all hoses should be hard with pressure.....unless the cooling system has a leak. Is your heater working when temp shows low?

 

It only goes to the temp i showed in the pic. Other than that i let it warm up to temp and once i drive it it goes to where the pic is and stays there.

 

i might be wrong, but im getting the same thing right now after changing my coolant. when i first got the car it was at 210 and every time im done driving it the hood was really hot after a coolant change the hood of my car doesnt heat up alway cool. When draining out the old coolant it was dark brown with a lot of settlement in it so, im thinking it might be normal again I could be wrong. I think the normal temp should be at 195 to 210. Plus I have to drive up major hills everyday and the car havn't over heat.

 

After that coolant work, it normally takes 3-4 complete heat up and cool down cycles to burp any remaining air out of the system. Assuming that the coolant reservoir is filled to the proper level to allow more antifreeze to be sucked in.

Can't see your AOL picture unless we log in, not a good way to post a pic.

 

remove the top heater hose check for air run till coolant comes out put back on then fill with antifreeze