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Old 01-11-2014, 03:49 PM   #1
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tj heat not working

I've flushed heater core and hoses, changed thermostat.any suggestions?

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Old 01-11-2014, 05:31 PM   #2
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Are both heaters hoses hot enough to be uncomfortable when holding them ?

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Old 01-11-2014, 06:52 PM   #3
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try this - remove the thermostat and let it run - should have heat - if all is the same then make sure the blend door ( pass. side) is opening like it should.
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Old 01-11-2014, 07:31 PM   #4
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I had to flush my heater core twice. The air coming out was like warm at best after the first flush. The hoses were both pretty warm. After the second flush the heat worked great.
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Old 01-13-2014, 07:19 AM   #5
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I had to flush my heater core twice. The air coming out was like warm at best after the first flush. The hoses were both pretty warm. After the second flush the heat worked great.
How do you flush it just disconnect the hoses and shoot some compressed air threw it?
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Old 01-13-2014, 08:04 AM   #6
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How do you flush it just disconnect the hoses and shoot some compressed air threw it?
DO NOT use compressed air!!!!! just use a garden hose and flush in both directions until the water is clear. Best to use a bucket (white bucket is best) to see the water is actually clear.
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Old 01-13-2014, 10:56 AM   #7
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When flushing the heater core be sure you flush it in both directions. Flushing in one direction won't get everything.

I just flushed mine out this weekend after having really poor heat this winter. After connecting my hose to the heater core inlet and flushing until clear water came out, I put the hose on the outlet and back flushed the heater core. More antifreeze came out and so did a lot more gunk.
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Old 01-13-2014, 12:39 PM   #8
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Thanks for the help guys I'm going todo this today my heater core has a small leak but I'm still going to flush it and see if it helps any until i can get a chance to change it.
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Old 01-13-2014, 04:39 PM   #9
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You need to be careful with the amount of water pressure you use if you know your heater core is leaking. I'm pretty sure I read that the amount of water going through the heat system is 18psi. Too much water pressure may do more damage.
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Old 01-13-2014, 04:56 PM   #10
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If both hoses are very hot to the touch next thing i would check is the adjustment of the temp blend door cable and make sure it has full range of motion.
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Old 01-13-2014, 09:40 PM   #11
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I just flushed my heater core, put in new 195 thermostat and flushed the whole system (radiator,block) n I have heat now. Not cooking any roasts on it but definately ALOT warmer than it was. C how it does when it gets cold again
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Old 02-08-2014, 02:45 PM   #12
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If both hoses are very hot to the touch next thing i would check is the adjustment of the temp blend door cable and make sure it has full range of motion.
is there a thread where this is done? 'm banging my head on the wall trying to find this...
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Old 02-08-2014, 02:58 PM   #13
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Thanks for the help guys I'm going todo this today my heater core has a small leak but I'm still going to flush it and see if it helps any until i can get a chance to change it.
If you know it's leaking removing all the gunk just may make it worse. It's best to bite the bullet and swap it for a new one.
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Old 02-08-2014, 09:02 PM   #14
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The door should have cable it's on the box bottom side of the passenger side , you wanna make sure the lever is all the way forward for heat as long as you hold the clip in pace and push the lever it should readjust it self when you move the lever .

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