Where can i buy the duracool 12a?

 

Fords4Me, sorry to hijack the thread, but I'm getting ready to place an order for a big box of 4 seasons parts. The wiring harness you have listed - does that tie in to the compressor? I have identified the matching end of the harness coming from my firewall, but trying to figure out the wiring. All AC components were torn out of my truck before I bought it.

 

I did some reading R-12a has a higher flash point than R134 and you don't hear about R134 going up in a fireball.

 

While not 100% consensus in the automotive industry, hfo-1234yf is replacing R134a. GM and Ford already use it. Ford does so in the Transit.

From what I understand, R12 synthetics are hydrocarbon based and are technically illegal for automotive use (I've never seen an auto HVAC guy use it).

What you CAN do, is get your EPA section 609 certification online for a few bucks, and buy R12 off ebay and DIY with R12.

More expensive, sure. But legal.

 

I don't know if they made it to the bricknose trucks, but 1980-86 dealer installed air conditioners used hose clamps and hoses similar to heater hose but much thicker. They are easy to identify, since they use that gigantic York type compressor that mounts above the water pump. I pulled this one out of an 82 F-150 a few months ago.

 

From what ive read theyre going to go to r 134c but the r12a is illegal in the US

 

As far as hose clamps go though i think someone may have jurry rigged it because the compressor has threaded fittings for the hose but the hose is hose clamped on there and the evaporator has gobs of some kind of sealant on it like it has threaded fittings that are leaking

 

Those clamps were used for many many years back in the day. If it was dealer installed, or a repair to a leaky hose, you usually got those clamps.

They are made especially for use on r-12 systems. Believe me, I am old enough to have seen and used 100's of those type clamps.

 

I recently bought a '90 F250 and the AC didn't work. I decided to replace the entire AC system with the parts for a '95 that was designed for R134. New compressor, lines, Evap core, accumulator and condenser. The only part that wasn't plug and play was the Evaporator core. I had to modify the Evaporator housing with a dremel to get it to fit. I've heard that I went overboard and I've heard that this is the best way to do it. It was worth a couple extra bucks in parts to have a system that was designed for R134 and I knew was going to work properly.

 

You will use the original low pressure switch wiring on the passenger side that goes to the receiver/dryer. The harness i listed is for the new high pressure switch that will mount to a port on the compressor, and gets spiced into the power wire for the clutch. This is why the compressor needs to be one made for 134a trucks.