8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHA/C leak near the Compressor
Leading reported evidence
Check a/c pressure
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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Read evidence and context
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Performed · outcome unconfirmed · Original poster
I checked the A/C pressure with car running and compressor turning.........0 lbs.
Leading evidence: 'Check a/c pressure' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check a/c pressure' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed · Original poster
He may have not fully tightened all the fittings!?!
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Suggestion
Check these lines (green arrows) on the back of the fuel cooler behind the Compressor.
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Suggestion
If the mechanic disconnected lines in the back near the fuel cooler you may want to check those out too.
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Suggestion
If the mechanic disconnected lines in the back near the fuel cooler you may want to check those out too.
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8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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I just recharged the A/C on my '01 996. The A/C was blowing nice & cold. I shut the engine down and went back to close the lid. I heard a hissing sound....escaping refrigerant I'm guessing. It's tight in there but I moved every hose & tube I could get my hands on.....no change in hissing sound. After about 4-5 mins. it stopped hissing. I checked the A/C pressure with car running and compressor turning.........0 lbs.
I have not charged the A/C since the engine was changed out (IMS failure) last Fall.
Thought? Ideas? Solutions?
Thanks
Perhaps there is a loose or cut/torn supply hose? Or perhaps the connectors is missing one of the O-rings inside. So the lines maybe tight but not creating a seal without the proper O-ring with in. Could be worth taking it to a charge station and having them vacuum out any moisture and remaining Refrigerant that your system may have with in it and then have them pour some leak detection solution and then pressurize the system to identify the leak or connection missing the sealing o-ring.
Good advice..... I think I will get to some of it by removing the Air Box.....but not all I think. Looks like more "stuff" to remove to actually reach where the leak may be!?! I'm thinking that when the Mech. put the thing back together....1. he didn't bother charging the system and 2. He may have not fully tightened all the fittings!?!
More ideas???
Yeah removing the air box will give you better visibility to the compressor and the two lines back there. If the mechanic disconnected lines in the back near the fuel cooler you may want to check those out too. Because those lines back there also have O-rings too.
The yellow arrows are the area behind the AC compressor, the orange one you should be able to see just by opening the hood.
Check these lines (green arrows) on the back of the fuel cooler behind the Compressor. I still believe in my first response, to have a qualified service station find the leak for you, then once the leak is found they can drain the system properly for you and you or they can fix the problem then service the system accordingly. I seriously think it will be much faster and easier on you going this route.
A suggestion for some 'secret sauce' so you don't have to repeat the task after you have fixed this leak.
Research using "NYLOG" on the threads+seals of the pressure fittings.Get the tech to consider doing a pre-test of the system with nitrogen. But before that -are you sure the receiver dryer is still effective ?
My local Autozone sells the UV/fluorescent stuff to find an AC system leak. Not sure what you use to detect it - I imagine it comes with a light. If not, I have an LED flashlight with UV diodes that works really well for spotting tiny little scorpions that decide they like living indoors better than outdoors...one just like it can also be yours from Amazon.com for the low, low price of a few bucks.
Since your leak is seemingly massive, charging it up with fluorescent dye and then hitting it with a UV light should light up the leak brighter than a hotel room bedspread soaked in luminol.
*edit* Amazon shows the kits coming with a UV light and some tinted goggles.
Use a halogen leak detector 'sniffer' for a small leak. Use nitrogen for a big leak like the OP has.Otherwise you will waste/pollute with Freon. A/c issues like this require so much special equipment now it is questionable as a diy project
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