A/C xperts please read...
Thread Starter
Intermediate
Joined: Jul 2004
Posts: 36
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A/C xperts please read...
I have an apparent slow leak in the evaporator core which is located under the dash. I purchased an 'a/c leak fix' kit which is on its way. Are these leak fix products safe to spray into the system ?? I don't want to make the siuation worse but I figured I'd try this befor tearing the dash out and replacing the evap. core. Any tips are appreciated...
Team Owner
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Originally Posted by Adam P.
I have an apparent slow leak in the evaporator core which is located under the dash. I purchased an 'a/c leak fix' kit which is on its way. Are these leak fix products safe to spray into the system ?? I don't want to make the siuation worse but I figured I'd try this befor tearing the dash out and replacing the evap. core. Any tips are appreciated...
Robert
Burning Brakes
Joined: Oct 2000
Posts: 1,135
Likes: 17
From: NJ
Adam, I am in the A/C business and have been doing nothing but Automotive A/C for the past 10 years. I know what products that you are talking about and they have been known to work but only temporarily. I am afraid to tell you this but you are gonna have to take this one on the chin and have it replaced. I would always get a second opinion because alot of so called A/C shops usually don't have someone who is really good and try to fix the problem the right way. The quick sealing kits contain a solution that will stop the leak will also clog the orifice tube, which is a fine filter that regulates the pressure in the A/C system and this tends to get clogged up from the smallest particles so this sealing solution will also clog this causing more problems. Hope this helps! 
Thread Starter
Intermediate
Joined: Jul 2004
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Cliff, thanks much for the info. and...
the mechanic said that the refridgerant 'sniffer' is detecting refridgerant coming from the vents into the passenger compartment. That is how he determined the problem to be an evaporator core leak. Does this sound reasonable to you ? Is that the only possibility ? Thanks again, Adam
Burning Brakes
Joined: Oct 2000
Posts: 1,135
Likes: 17
From: NJ
I would still have someone check it for you and see if they can put some A/C dye into the system. I think a sniffer is possibly the best device to find a leak but with some small stuff the dye might help. You might just have a bad o-ring or something simple like that, it all depends on how long the A/C Charge will last.
Advanced
Joined: Apr 2003
Posts: 56
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From: Orlando FL
You need to have a dye test done to see specifically where the leak is coming. Do NOT put the leak sealing kit in....more trouble than it is worth and you WILL cause secondary problems as previously described.
Break out the checkbook.
Instructor
Joined: Feb 2004
Posts: 187
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From: dansville ny
i wouldnt trust a sniffer in a blower vent just the air blowing across it will set it off sometimes do not use the sealer have it charged with dye and keep an eye on it as soon as you start to notice the ac weakening take it back to whoever charged it and have them look for dye evaporator cores do fail but there are some other components exposed to the elements that fail more often id hate to see you replace the evaporator core and still have not repaired the leak if it loses its charge quickly the leak should be fairly easy to spot with dye added the only problem being the evap core is completely encased-if its big enough sometimes u will get dye out the drain good luck with it and make sure u fix it the first time dont start replacing parts until its fixed
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Le Mans Master
Joined: Aug 2004
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From: NCM Lifetime#2195 Bulverde, Texas 78163
St. Jude Donor '13
Check the drain beside/behind the battery for oil stains.
If it is leaking there will be oil stains. If you replace the evaporator
core make sure you replace the accumulator also. This is the
dryer and probably caused the evaporator core to leak.
If it is leaking there will be oil stains. If you replace the evaporator
core make sure you replace the accumulator also. This is the
dryer and probably caused the evaporator core to leak.