aronlove

Hey would anyone have an extra a/c relay for an 85 GL ea82 4dr sedan? (non-turbo) Here is the info off the thing: c8227 MR5L-191-7 12V 50114H JIDECO It's black and about 1-1/8" x 1-16" x 1-1/4" not counting the 3/8" long part that sticks out containing the leads (4 flats) like this - - - - Does anyone know the part I'm talking about?

Well, I finally was able to check the blower motor directly to the battery (actually, I just unhooked the wires from the trunk light and plugged it in there, what the heck, same harness size) and it works. So that got me to thinking it must either be the relays or the switch. I pulled the relays off and switched them around and lo and behold the a/c compressor kicked on - also can see bubbles in the little sight glass on the canister So I'll need a new relay at least. Drove it around for a little while - I can feel the cold air flowing slowly out of the vents (I have the "vent" slides set to on.) but air is not being blown. So now the problem is, the blower motor won't turn on (on any fan speed). I'm going to have to take the dash apart and make sure the darn fan speed switch is even hooked up right! Any other ideas? Thanks to everyone who has left messages! I'm halfway there!

Thanks all, yeah I'll hook up the blower motor directly and see if it even spins. I've already replaced the climate control once in this darn car so maybe again? The fuses in the fuse panel are all good by the way. (thanks subie85) but starting to think it might be the climate control panel - maybe was hooked up wrong or something fell off

ok so I checked out the relays located above the right (passenger) side strut tower and if I'm not mistaken there are two there. when I disconnect one, the subfan (the secondary fan on the radiator) turns off. The other one I'm not sure what it does but I switched them and no effect. I pulled the wires to the blower motor out and traced it back to this little harness/box where there are like 30 wires connecting. I'll probably have to rip that out as well and trace back to find the short / bad switch / relay. It was wierd cuz the air was always cold when the a/c was working (so I thought the freon level was good) but the blower kept kicking on and off (so maybe a small leak? causing level to go below normal). Now blower doesn't work at all, nor does compressor - just sits like a freakin rock. I'll probably have to take it to the mechanics to check for freon level. Too bad R-12

Thanks, rallyruss! I'll check them out. Can you tell me by chance is there a way I can either short across the relay or test it with a multimeter? I don't want to have to break down and just buy another only to find it was good all along.

Again, thanks for the replies. I am a little confused, however. A few of you have mentioned that it may be caused by low volume of refrigerant. Wouldn't this not affect the blower motor, just the compressor? (Because low refrigerant shouldn't affect the heater, right?) I've checked out the fuses with my multimeter also and all circuits are functioning normally as far as I can tell (I'm not an electrician, mind you). Could anyone tell me where the relays are located or even better a pic of them? Thanks!

Well everyone thanks for all the help. I was able to take a few minutes to try to figure out this darn thing and using my multimeter and it seems like there is no power to the blower! I will have to check the charge but I doubt that it is low as it was blowing ice cold a few weeks ago then just up and stopped. Would anyone know how I can troubleshoot the relays to eliminate them as a possible suspect? :-\

Thanks, Russell. - Here's the funny thing. Yes, the a/c belt is ok. The controls do make a hissing noise when pushed, but the compressor doesn't kick on. Plus, the fan doesn't work on any speed. When I set the thing to Heat, I can feel the heat building up behind and below the dash, but no fan - I've been using the "vent" to blow air in . Does this sound more like a relay problem for the compressor? Or perhaps faulty wiring / connections? I'll check the blower motor by hooking directly to battery and see if it works at least. Thanks for the reply. Aaron

Ok folks I've been through most of the posts I could find on the subject and want to make sure that I'm explaining this correctly. I have an 85 GL (EA82) and the A/C doesn't work. I mean, it really doesn't work. When I hit the A/C switch, I can hear some vacuum of some sort like a small hissing noise but the compressor (condensor?) doesn't engage cuz the idle speed is not affected at all - (checked the unit under the hood, not moving.) And the blower doesn't pump out anything either. (on any speed). Does this sound more like a bad compressor? or is it perhaps a bad relay? Or bad fad switch? - by the way, I did check the fuses - (at least, the ones in the fuse box). Also, is there a way to troubleshoot the switches/relays (with a multimeter?) or should they just be replaced? Or am I going to have to bite the big one and buy a whole new compressor? Any help would be greatly appreciated. Sorry for all the questions, I really am a beginner. --Aaron