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Old 07-06-2005, 07:31 PM
OZBIRN454 OZBIRN454 is offline
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1999 Suburban A/C Help

Hello all, I just moved to AZ from IL and its 116f here. My AC is blowing cold in the front after I charged it up. The rear AC blows cool but not cold. Is there another spot to charge the rear?? I don't see how it would work if there was.I checked all the pressures with in range with the temp. System was just a little low not empty.I also checked to make sure that both controls worked on hot and cool settings and they did . Is there something I missed or over looked? Is that just how it is? I know thats alot of area to keep cool. I just figured it would blow cold out of the back vents also instead of cool. Any ideas would help thanks Oz
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Old 07-07-2005, 10:49 PM
teamlopez teamlopez is offline
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Re: 1999 Suburban A/C Help

Quote:
Originally Posted by OZBIRN454
Hello all, I just moved to AZ from IL and its 116f here. My AC is blowing cold in the front after I charged it up. The rear AC blows cool but not cold. Is there another spot to charge the rear?? I don't see how it would work if there was.I checked all the pressures with in range with the temp. System was just a little low not empty.I also checked to make sure that both controls worked on hot and cool settings and they did . Is there something I missed or over looked? Is that just how it is? I know thats alot of area to keep cool. I just figured it would blow cold out of the back vents also instead of cool. Any ideas would help thanks Oz
If it's like my 1998 sub. there is a expansion valve in the rear compartment that comes before the condensor. It could be blocked or dirty. This valve allowes refrigerant through to condensor. (the valve is inside the blower box mounted in the rear of the vehicle. you have to seperate the to halfs to get to it. also have the system evacuated so it wont blow refrigerant into the vehicle.) hope this helps.,
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