Jessica19699
Well-known member
Hello CAC world can anyone tell me where the ac evap is located on a 92? I heard it was under the dash and was hard to get to Is this true or is it under the hood by the firewall?
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Jess,I apologize for the incorrect location.[/QU
wayback, its all good you are only trying to help ,thanks again
So has a reply to this evap location is there anyway of checking to see if the evap is leaking with it being in cased like it is on the video above? I understand the dye technique which is already in my Freon when they converted it over from R12 but it seems to have a leak the mechanic found two leaks on the fitting they installed for the conversion kit so they tightened them and recharged the system and when I picked it up it worked great the car then sat for a few days and when I went to drive it today I noticed the a/c was no where near as cold as it was 3 days prior so it has to still have a leak somewhere I will take it back to the shop that fixed it before but i'm just wondering if there is anyway of seeing the dye if the leak is in the evap that is incased, the mech still insist the evap is under the dash I told him what was said here and the video I seen showing It under the hood and he still says he is pretty sure it located under the dash ,,this is becoming frustrating
You should be able to see traces of the dye through the evaporator drain tube with a black light, or with Freon sniffer if there is a leak there. The system only working for 2-3 days sounds like a high side leak though, check the condenser very carefully with a black light (dye) for any unusual dirt/oil debris attached to it, if there is no dye then a strong bright led light will work. Check all the under hood fittings and hoses the same way.
I would have to see the vehicle to tell you where the evaporator is. The a/c tech should absolutely know where it is, or don't let him work on your vehicle again. It's a big unit and if it's under the hood there should be a big plastic/fiberglass unit bolted to the firewall on the passenger side that will make valve cover and spark plug access difficult.
LLC5-Thanks for the reply there is a big black plastic unit bolted to the firewall of my car with A/C lines coming off it, take a look at the video attachment above that Otter shared mine looks exactly like that 91 that the guy in the video is working on. here is the link
YouTube
That sounds like your evap.
That's what I was thinking also thanks for the help
Before replacing the evaporator make sure that there are no leaks from the condenser, hoses, fittings or compressor. Common leaks are at the condenser and a/c compressor front seal.