Originally Posted by KimmiesJeep2002
I need some advice. I have a 2002 Jeep Liberty Limited, it has 213,000+ miles on it. My heat has not been working for awhile now. Once the engine warms up there is a little heat initially but then it blows cold air after. I did have the radiator replaced about 3 years ago and I think that's when I started having problems with the heat. Anyway I finally took it in to be looked at, it's too cold and I can't take another winter with no heat in my car. They flushed the heater core and said it didn't do anything for the heat. They said my next option would be to replace the heater core. They quoted me $1,200.00 to do this. My first question is does this seem like a fair price to replace the heater core? I know it's time consuming and labor involved but this seems a little high. Next question, given the miles on my Jeep, is it a good idea or worth it to put this much money into a repair at this point? My Jeep still runs pretty good, I think, except for an occasional oil leak due to a loose seal. They were also concerned about the miles on the Jeep and said they would hate to see me put money into it and then it stops running in the near future. They said I might be better off buying a cheap little car instead. I don't have money to spare and I don't know what to do at this point and I need to decide today since my Jeep is still at the shop and I've been driving a rental car for three days now, which is also costing me money. Any ideas or insight is appreciated. Thanks- Kim
Do you have the blower motor blowing lots of air on all speed settings? If not then the blower resistor pack behind the glove-box is faulty.
When they flushed the heater core...did they replace the coolant with the Orange HOAT
coolant? This is the only anti-freeze to use...the green one will clog the heater core and damage the engine.
The temperature of the hose going into the heater core should be about the same as the temperature of the hose leaving the core....if not then you have a blocked heater core or a major air lock in the coolant system. There is no valve that regulates water flow through the heater core...it should always flow. Does the engine run at normal temperature? If not then you could have a Thermostat that is stuck open.
What does adjust the heat flow is a Blend Door which you should hear moving when you move the heat control. This is an electric motor that opens/closes various flaps to direct hot or cold air around the place. There is also a vacuum pipe coming into the cabin from the intake manifold to operate air control to de-mist, footwell etc.
If you can use a hosepipe to push water through the heater core then it is not blocked.