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09-17-2005, 02:36 PM
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#1 |
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Registered User
Join Date: Sep 2005
Location: florida
Posts: 13
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72 Factory air
My 72 has factory air and the cooling lines going to the evaperator core are cold. The air coming from the vents is not. I replaced the vacuum operated heater hose valve thinking it might be leaking. No improvement. The air is just slightly cool. Suggestions? What about a manual shut off valve on the heater core? I don`t even know if the heater core would be the problem when in the A/C mode. Help! Thanks, Joe
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09-17-2005, 03:03 PM
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#2 |
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Registered User
 
Join Date: Dec 2004
Location: Gypsum Kansas 67448
Posts: 1,681
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do you have enough freon in it,does the compressor click on and off or does it just stay on,is your orifice tube plugged,thats why i hate a/c,there are so many things that have to be right
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09-17-2005, 04:23 PM
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#3 |
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Registered User
Join Date: Sep 2005
Location: florida
Posts: 13
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tHE COOLING TUBES TO THE DASH ARE COLD. i HAVE SOME PROBLEM WITH THE AIR FLOWING ACROSS THE EVAP CORE AND OUT THE VENTS. tHANKS
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09-17-2005, 04:50 PM
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#4 |
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Registered User
Join Date: Feb 2002
Location: Vacaville, CA
Posts: 2,746
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An easy way to tell if its hot water flowing to your heater thats the problem is to just loop the heater hose from the manifold to the pump. Then you know there is no hot water flowing to the heater. If that cures the cooling problem then its time to check all the vacuum lines and the vacuum control on the HVAC control on the dash.
Check out this post for diagram: http://67-72chevytrucks.com/vboard/s...threadid=58584
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09-17-2005, 09:41 PM
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#5 |
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Registered User
Join Date: Apr 2005
Location: Pensacola, FL
Posts: 400
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AC info
WOW! I had the same prob.
!. Check hot cold cable by cowl passenger mine was off adjustment 2. Recycle air vent open(right kick panel vent) 3. Make sure hot water valve is closed(I put a manual one in line from Lowe's) just my .02 worth good luck Jeff Smith Pensacola, FL |
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09-18-2005, 08:22 PM
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#6 |
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Registered User
Join Date: Sep 2005
Location: florida
Posts: 13
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Thanks Jeff! I am from Brewton.
Joe |
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Linear Mode
