Air Conditioning problem
1998 Chevy Prizm 4 cyl Front Wheel Drive Automatic 160000 miles
I lost my AC quite quickly over course of a day max, heater still works. Fan blows hot, ambient air (Texas). Clutch engages immediately and spins. Belt seems good. Fuse for ac at front of engine looks OK. No hoses are cold. Hook up can of 134a/dye and no pressure as per gauge on can. Can gets a little warm and gauge/can setup works on other car. Can does not see to empty at all, no pressure still after 15 minutes.
Spraying w soapy H20 has bubbling right next to firewall when AC is set to full see pic for bubbling area at firewall/low side hose. Q1: could the bubbling be blowback from fan inside firewall/dash? Q2: If I see bubbling when AC set to full why is there not enough presssure to pull in refridgerant / or Q3: If there is no pressure does a vacuum have to be pulled first? I want to confirm leak with dye. Q4: What kind of connection is that in the pic? Is it 2 threads so need backup wrench and how tight should they be and can I unscrew and possibly replace o-rings? Finally, could I be missing something else to look at?
Wednesday, July 28th, 2010 AT 8:40 PM