OK, I have a few questions:

First is the A/C on my 88 R12 or R144

Second when I pulled the codes I got the following:
67c (Air conditioning compressor clutch switch fault)

Does this mean it is a clutch problem, or is it the low pressure switch? I would hate to buy a new clutch and then find out it was just low system pressure.

Any info on repairing would be great!

 

I would say an '88 Bronco II would have the R12, my '91 Explorer came with R12 but has been changed to the new one...My '91 Bronco(Fullsize) also has the R12.

Go to your local Autozone and ask witch part you need, they are USUALLY very knowlegeable.

I think FORD changed over to the new refridgerant in '94 in all cars.

 

A 67 can be a neutral safety switch too.

 

I had a n88 Aerostar and it definately had R-12. It is pretty easy to convert to R134, AZ can help you with that and sell you a kit. If you think it is the low pressure switch, unplug it and use a jumper wire. If it runs then you either have a bad low pressure switch or low pressure.

 

Does the AC work? I don't think I've ever seen a code 67 that actually applied to the AC system. Every code list I've seen, and every time I see a code 67 on my BII, it applies to the neutral position switch. A KOEO hard fault 67 (1st set of codes) is almost always a result of running the KOEO test with the MT in gear. A 67 continuous memory code (don't think I've ever heard of one, but it is a possibility) would point to an intermittent fault in the neutral position circuit. The only AC code I would expect you to see is a 79 which would be a result of running the test with the AC switch turned on.

 

I am not making it up. The code I got was 67c and here is the page of the book that came with the ASE approved code reader:



The AC does not currently function, and before I dump a pile of money in to it (and this is Phoenix which makes it a must have) I am just trying to figure out what is happening.

 

First does the blue light come on when you push the ac botton in?If not check the ac fuse,if good check the switch it self{hard to do got to take the dash apart}.If good check the AC relay on the passengers side fender under the hood Not real sure which one.Then do the pressure swich jump stated above and see if If the comperser runs and you get cold air ,if not you need to have it checked for leaks and rechared.JMO

 

Uhm, where is the low pressure switch? There are so many connectors I am not sure which is which.

 

I kinda knew this was coming...usually it is connected to the evaporator (the shiny cannister) by the fan box on the passenger's side. It should be a two wire connector plugged and when you pull the plug off, place the jumper wire in the plug side. These are pretty general instructions, please just ask if you need more specifics.

 

Thanks 1081 I was a little fage on my directions.

 

No problem...I have to check my d. license frequently cuz I can forget where I live if I'm not paying attention!

 

The low pressure switch is located on the ACCUMULATOR not the evaporator!

 

Yah, thats what I meant, that thingymabobber.
Thanks for the save.

 

mrshorty is correct, it can be the neutral safety switch, see the Ford infomation under "pulling eec-iv codes" in the tech info thread.

 

It is not the neutral safety switch. It was, ion fact the A/C.

Just shorted the low pressure switch and the compressor came on and there was some pressure in the system. I just need to fins some old r-12 on Ebay and top it off.

When I get some extra cash I will convert it to R134

Maybe I will try that freeze12 stuff.