djdr1988

I have searched the threads and haven't found an exact issue, but I have an 89 Comanche and the heater will lightly blow luke warm air from the dash and defrost, but it constantly blows ice cold air at the floor. I have tried flushing it and replaced the coolant valve for the heater core. I have also checked the blend door for function and that seems to be working as well. Also, when I change the blower location it does change. Any advice guys?

Had a similar issue with my xj. Check the crankshaft position sensor as it is a major part of the ignition timing

Hey Guys. Sorry I Haven't Posted Back In A While. I Decided To Take Out The AC Condenser And I Pulled The Radiator And Flushed It Directly With A Hose And Reinstalled It Filled Up The System And Ran It With The Cap Off The Tank For About An Hour And A Half Filling As It Went Down. I Haven't Had Any Problems Since. I Think There Was Too Much Air Trapped In The System. Thanks For All The Advice. Sorry For Everything Being Capitalized. My Phone Is Being Weird.

I did take the thermostat out a couple weeks ago I have ran without before and the Jeep always ran cold but it still overheating now

I did take the thermostat out a couple weeks ago I have ran without before and the Jeep always ran cold but it still overheating now

I am only filling it to the top of that piece. I replaced the bottle last year. I believe it is the original radiator in it. I have a newer radiator out of a jeep we parted out but it is for the breathing system and is my understanding that if input that in I have to change something with the heater hoses and I can no longer use that sealed bottle.

I have checked the exhaust, I will pull the plugs here shortly

It is also losing coolant and I don't see any leaks or drips and its not going into my oil

I'm sure there is already a thread on this, but I have an 89 Jeep Comanche that has constant overheating problems. I have check the water pump and I flushed it. still overheating I was wondering if it is possible to put a radiator with a cap in it without changing the whole system.