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Heater not working.

  #1  
Old 01-13-2019, 10:54 AM
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Default Heater not working.

The heater had been working fine. Then I changed my intake manifold gasket. Everything else is good, but my heater no longer works. I have driven it about 200 miles, and I have checked the coolant level multiple times. The upper radiator hose gets hot after driving, but the heater hoses feel pretty cool. The weird thing is, if I jack up the front end and run it, the heater will start working, but the next time I drive it it will not work again.

Its a 1995 Camaro with a 3.4

Any ideas? Thanks in advance.
 
  #2  
Old 01-13-2019, 12:20 PM
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Might be air in the system that needs bled out, maybe try back flushing the heater core could be something plugging it.
 
  #3  
Old 01-13-2019, 01:48 PM
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I tried flushing the heater core both ways. It did not make any difference.
 
  #4  
Old 01-15-2019, 07:00 AM
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woh that is weird. does sound like air, did you try bleading the air when front was up.
 
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