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OT- auto A/C problem need help
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<blockquote data-quote="demarpaint" data-source="post: 72338" data-attributes="member: 655"><p><strong>Re: OT- auto A/C problem need help ATT Daddyrabbit</strong></p><p></p><p>Daddyrabbit said: [ QUOTE ]</p><p>I don't know as to the method you're checking your system for being fully charged, I.e, OA +32degrees, weighing it in, sight glass, etc, etc. I can tell you if your condensor is dirty you'll suffer this quandary if you charge your system via OA method. I'd check to make sure your condensor is moving enough air. You said there's no blockages so that leaves out a blocked drier or an orfice/expansion tube....you'd see these on your low side. Blocked condensor or non-condensable will show up on your high side. Not too many options left. </p><p> </p><p></p><p>[/ QUOTE ] </p><p></p><p>The evaporator had to be replaced original in 1988 van all freon leaked out, checked with dye and sniffer determined it was bad. Upon removal saw it was leaking at a seam. </p><p>Replaced part evacuated system held vacuum for 4 hrs. Charged with Freon, weighed charge at 3.5lb, as per shop man, also monitored with the gauges. </p><p>Hope this helps, was thinking fan clutch (not cooling condensor enough) could be bad, but the high pressure reading is what is messing me up. I don't want to throw parts at it, its not overheating, leading me to believe the fan clutch is good, but I didn't check it.</p><p></p><p></p><p></p><p>Thanks</p><p>Frank D</p><p></p><p>PS OA method???????? Not sure what you mean.......thanks, enjoy the holiday weekend!!!!!!!!!!</p></blockquote><p></p>
[QUOTE="demarpaint, post: 72338, member: 655"] [b]Re: OT- auto A/C problem need help ATT Daddyrabbit[/b] Daddyrabbit said: [ QUOTE ] I don't know as to the method you're checking your system for being fully charged, I.e, OA +32degrees, weighing it in, sight glass, etc, etc. I can tell you if your condensor is dirty you'll suffer this quandary if you charge your system via OA method. I'd check to make sure your condensor is moving enough air. You said there's no blockages so that leaves out a blocked drier or an orfice/expansion tube....you'd see these on your low side. Blocked condensor or non-condensable will show up on your high side. Not too many options left. [/ QUOTE ] The evaporator had to be replaced original in 1988 van all freon leaked out, checked with dye and sniffer determined it was bad. Upon removal saw it was leaking at a seam. Replaced part evacuated system held vacuum for 4 hrs. Charged with Freon, weighed charge at 3.5lb, as per shop man, also monitored with the gauges. Hope this helps, was thinking fan clutch (not cooling condensor enough) could be bad, but the high pressure reading is what is messing me up. I don't want to throw parts at it, its not overheating, leading me to believe the fan clutch is good, but I didn't check it. Thanks Frank D PS OA method???????? Not sure what you mean.......thanks, enjoy the holiday weekend!!!!!!!!!! [/QUOTE]
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