DIY - Do It Yourself Within you will find how-to's on many aspects of modding and caring for your ride as told by your fellow members.

Air Conditioning Not Working

Thread Tools
 
Search this Thread
 
  #1  
Old 08-24-2020, 04:43 PM
grumpy56's Avatar
Junior Member
Thread Starter
Join Date: Jul 2009
Posts: 18
Default Air Conditioning Not Working

Hello All. Air conditioning not working in my 1987 Camry with 2.0 L engine. Here's what I know:

1) Have had car since 1992. Mother-in-law bought it new. A/C worked fabulous for the 30 years.
2) About 2 or so years ago, it would not cool when at idle. I don't recall or didn't check if the compressor was on at that time. Above idle, arctic cold.
3) At the beginning of this year, started just blowing hot air. Compressor turns on when AC button is pushed (and lights), but only hot air. Fan works fine.
4) I believe it has never been retrofitted to R34a as I never recall doing that and the fittings look like tire valves.

Help needed. Much appreciated.
 
  #2  
Old 08-26-2020, 09:18 PM
toyomoho's Avatar
Super Moderator
Join Date: Jan 2008
Location: PTW
Posts: 14,786
Default

Check for:
Low Freon.
Debris in condensor and evaporator coils.
Air mix door issues. Door blends hot and cold air to get desired temp.

 
  #3  
Old 08-27-2020, 11:33 AM
grumpy56's Avatar
Junior Member
Thread Starter
Join Date: Jul 2009
Posts: 18
Default

Thanks Joey P.
 
  #4  
Old 09-07-2020, 06:06 PM
grumpy56's Avatar
Junior Member
Thread Starter
Join Date: Jul 2009
Posts: 18
Default

Hey all. Does anyone have the the P/N and/or a source for the "AC MG RELAY" located in the fuse/relay box on the drivers side of the engine bay? My AC indicator lamp is blinking and the compressor is not engaging. Was working fine until I started fooling with things to see why my left side fan was not turning on (I assume the AC fan is on the driver's side). The fan works when I hot wire it and I got the compressor to kick on when I jump the connectors in the noted relay. Also noted that the left side fan started when I jump the terminals, but would quickly stop. I added RF134A replacement to the proper level and when it works it is blowing cold air. Anyway, help appreciated.
 
  #5  
Old 09-08-2020, 06:35 PM
toyomoho's Avatar
Super Moderator
Join Date: Jan 2008
Location: PTW
Posts: 14,786
  #6  
Old 09-08-2020, 09:12 PM
grumpy56's Avatar
Junior Member
Thread Starter
Join Date: Jul 2009
Posts: 18
Default

Thanks Joey P but none of those pin configurations match my relay.
 
  #7  
Old 09-09-2020, 12:39 PM
toyomoho's Avatar
Super Moderator
Join Date: Jan 2008
Location: PTW
Posts: 14,786
Default

Does the current A/C relay have a part number on it? If so do an internet search on the part number.
 
  #8  
Old 09-09-2020, 01:13 PM
grumpy56's Avatar
Junior Member
Thread Starter
Join Date: Jul 2009
Posts: 18
Default

The relay that is currently in there is a "dimmer relay". I may have replaced this years ago and was unable to find the right part back then as well. I'm going to try another dimmer relay and then call Toyota parts to try and get some "free" guidance.
 
  #9  
Old 09-10-2020, 04:12 PM
toyomoho's Avatar
Super Moderator
Join Date: Jan 2008
Location: PTW
Posts: 14,786
Default

It is possible the A/C relay is also used someplace else. So try another dimmer relay.
 
  #10  
Old 09-15-2020, 03:47 PM
grumpy56's Avatar
Junior Member
Thread Starter
Join Date: Jul 2009
Posts: 18
Default

Still having issue with my 1987's AC. Does anyone have the the P/N and/or a source for the "AC MG RELAY" located in the fuse/relay box on the drivers side of the engine bay? It is the rectangular one closest to the front of the car. Thank you.
 


Quick Reply: Air Conditioning Not Working



All times are GMT -5. The time now is 05:48 AM.