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#1
08-20-2010, 08:54 PM
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AC Blowing Warm
Hey Guys,
89 Olds 98 The AC on my car is blowing warm. Pressures are good on both high and low side. The system holds right around 25-30psi on the low side when the engine is slightly above idle and the compressor stays engaged. I'm thinking it may be a cloged orfice tube or the heater core isn't being blocked off. Does anyone have an insight as to the inner workings of the ducting? I'm assuming the flappers are vacuum actuated? If so, does anyone have a vacuum diagram of the vehicle? Any other inputs are greatly appreciated. Thanks, matt
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1989 Oldsmobile Ninety-Eight 2002 Volkswagen Jetta GLX VR6 
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#2
08-20-2010, 09:42 PM
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Re: AC Blowing Warm
recover and weigh the refrigerant- it is most likely low..find and fix your leak and evac and recharge to factory spec....
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Automotive A/C Engineer with: '99 IH 4700 Toy Hauler (2) '95 GEO Prizms both maroon '99 GMC Yukon '95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller. '94 Astro- 370k miles '94 Firebird Formula- 5.7L 180k miles- gone- '92 Chevy Lumina Van 3.8L 264k '86 GMC S-15 - 2.8L 154k '87 Buick Park Ave . 187k '86 Buick Park Ave 3.8L 199k miles- gone '77 Chevy Vega- 2.5L 175k miles gone but not forgotten '68 Camaro 396 4 spd RS/SS -72k miles-
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