Originally Posted by flosho

Guys, I've been battling a small cooling issue over the past month. Kind of an intermittent issue that I've been band-aiding.

About a month ago, my 97 cherokee started running a bit hot (past the 210 mark) then it suddenly shot up to the red. I pulled over and let it cool down. After a while I was able to make it all the way home (Was not far at all).

I decided to bleed the coolant. After that, it ran fine right at 210 for about 2 weeks, then again on the highway it started to run a little hot and then overheated while my fiancee was driving. She pulled over and we had to have her dad come tow it home. While we waited, it cooled down some and I decided to try bleeding the coolant again. Guess what, it fired up and sat at 210 the whole time. (both times you could tell it had been a little hot).

I've found that my radiator appears to have a very small pin-hole leak. You can hear it hiss after I shut the jeep off and it smells a bit like coolant but I don't ever see any on the ground.

Anyway, I think what is happening... After driving the vehicle and cycling the cooling system it lets air in every time I shut it down and then the system develops hot spots. So once I bleed the air out of the system it is fine for a while until it randomly over heats again.

Sound plausible?

I'm gonna have a used/tested radiator sent over and swap it in if it isn't too much work and go from there, because I'm certain the radiator has at least some leak.

I'm also going to toss on a new radiator cap for the heck of it and keep the old one.

Originally Posted by flosho

Anyone?

Originally Posted by barker916

i cannot find the low pressure sensor on my jeep, ac stopped working and i would like to jump the compressor to make sure its not seized. i can spin it with my hand, but when i turn ac on it doesnt spin. ac just blows hot air. everything i have been finding is for the 6 cyl which is different than my 4 banger. i know the first problem was buying the 4 cyl but i was 17 and its was a new jeep to me 15 years ago. so any help ? i want to recharge the ac but i figured testing the compressor before i go any farther. thanks in advance guys.

Originally Posted by barker916

i guess thats what im having trouble finding. i can only see the duty purge canister, is the accumulator somwhere else ? i see something like that behind my grill in front of radiator ?

Originally Posted by Nperryman

Look at the engine bay from front of jeep. Back left corner by where the tubes go through the firewall is a black bottle looking thing. That's the accumulator.

Originally Posted by JRT1393

I have a 2001 Cherokee, I'm replacing the motor. Me and dad got it in the engine bay, & got one of the lower tranny bolts started, but the over one can't quite reach the threads, no lie it's only like a quarter of an inch it lacks, we can get one side started, but not the other at the same time, to me seems like the torque converter pilot shaft won't quite line up, what do you guys think?

Originally Posted by dukie564

have to make sure the alignment slots/dowels are lined up. It won't seat unless they are.

Did you mess with the torque converter at all?

Originally Posted by JRT1393

Nope, I just put the one off of the old motor in the transmission, the other motor came out of a 2wd Cherokee & I didn't wanna take a chance of it being the wrong converter, couldn't find anything to say it was or wasn't the same