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Old 01-23-2011, 06:00 PM   #1
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Exclamation 1997 tj 4 cyl heat problem

i have a 1997 tj 4 cyl...changed thermostat, flushed heater core, it looked great, and im still only getting a warm air, not hot, not cold, the know where i switch it from hot to cold, is very hard to move over.....any suggestions, because ive tried eveerythign it says on yahoo...lol just to make sure i have them in the right order, the top heater core hose goes to the top of the thermostat housing correct > and the bottom hose goes to the tube to the water pump ? Help Please ! Thanks !

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Old 01-23-2011, 08:36 PM   #2
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ttt

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Old 01-23-2011, 08:46 PM   #3
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the temp slider very hard to move over? check the cable it might be stuck inside the slider.
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Old 01-24-2011, 08:04 AM   #4
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My 97 TJ didn't heat well. Even after a coolant swap, it didn't get much better. Did a full flush, including the heater core. In the process, I found my water pump barely turned at all and started leaking after the flush. I couldn't turn the impeller at all.

Got a new one from the auto store for about $32.00. In the 2.5L, it is an easy job. Remove fan shroud bolts, then the fan. Pull both out. Remove serpentine. Remove water pump and replace. If it has an "R" on it, you have a reverse flow water pump (mine did).

Put it in, put in new coolant/distilled water, and the heater works great now!
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Old 01-24-2011, 10:59 AM   #5
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i forgot to put that in my topic, i change that last week also ! appreciate the help but still no heat...more suggestions ?
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Old 01-24-2011, 01:40 PM   #6
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Possibly a bad heater core or it still needs to be purged of gunk.
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Old 01-24-2011, 01:51 PM   #7
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After is up to full operating temperature, are all the hoses hot ?
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Old 01-24-2011, 06:45 PM   #8
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I just changed a heater core in my 99 dodge, got plugged up with age.
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Old 01-25-2011, 10:56 AM   #9
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One way to check if it’s the cable is to unhook the cable at the blend door and see if by pulling on the door towards you it moves father then with the cable..
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Old 01-26-2011, 12:19 AM   #10
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no it didnt...is there a seal around that blend door that could have came off ? its really ho down by that area,

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