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heater trouble

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Old Aug 31, 2010 | 08:27 PM
  #16  
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that switch is ran off of vacuum but on the back of the temp control it has a cable
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Old Aug 31, 2010 | 08:27 PM
  #17  
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sorry i meant the valve is vacuum
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Old Aug 31, 2010 | 08:28 PM
  #18  
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and it runs fairly cool, normally runs at 200 never more than 210, so could it be a bad t stat?
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Old Aug 31, 2010 | 08:31 PM
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Originally Posted by 90xj,99xj,92mj
sorry i meant the valve is vacuum
Fallow the vacuum line going into the firewall to verify it has no holes then check the diaphram mounted to the bottom of the heater core box inside and make sure it is hooked up. Sounds like the diverter inside the heater core compartment is not functioning and is stuck in the cold air position.
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Old Aug 31, 2010 | 08:40 PM
  #20  
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the pink one?
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Old Aug 31, 2010 | 08:49 PM
  #21  
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Originally Posted by 90xj,99xj,92mj
the pink one?
May have been red at one time or black mine is now pink because it is weathered or something. It comes from the switch under the hood and goes into the firewall.
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Old Aug 31, 2010 | 08:50 PM
  #22  
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Originally Posted by 90xj,99xj,92mj
and it runs fairly cool, normally runs at 200 never more than 210, so could it be a bad t stat?
Presuming your gauge is accurate, that should be plenty hot. Have a 180F t-stat in our '98 and the heater is toasty. Sorry, probably not what u wanted to hear.
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Old Aug 31, 2010 | 08:53 PM
  #23  
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no its all good i need feedback haha what else could it really be than? ive got a good heter core, valve, and vacuum hmmmm
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Old Aug 31, 2010 | 09:06 PM
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Originally Posted by 90xj,99xj,92mj
no its all good i need feedback haha what else could it really be than? ive got a good heter core, valve, and vacuum hmmmm
who did the heater core? Not being negative or nasty but were the caps or plugs covering the heater core hook ups removed before the lines were hooked up?
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Old Aug 31, 2010 | 09:09 PM
  #25  
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ha i hope they were the dealer did it, the lady i bought it from had it done i actually have the reciept for it
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Old Aug 31, 2010 | 09:15 PM
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Originally Posted by 90xj,99xj,92mj
ha i hope they were the dealer did it, the lady i bought it from had it done i actually have the reciept for it
Well i cant think of anything else. good luck with it.
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Old Aug 31, 2010 | 09:17 PM
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Originally Posted by blasterman93
Well i cant think of anything else. good luck with it.
I dont trust dealerships much. I had a chevy astro and the trans went out i took it in under warranty and in 4 months it was doing the same thing. They did get it right the second time around though.
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Old Aug 31, 2010 | 09:22 PM
  #28  
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well hell maybe i should just go bug them haha i apreciate all the help from you guys i'll let you know what happens
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Old Sep 1, 2010 | 09:21 PM
  #29  
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ok i fixed it, i finally just tore that valve off and put a t splitter in its place. and now it works great! thanks for everyones help!
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Old Dec 19, 2010 | 04:52 PM
  #30  
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okay, so which valve did you replace? was it the heater/water control valve?
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