In Anticipation of More Incoming God Awful High Temperatures

 Car AC Pressure Chart: R134a Low & High Side Pressures

I recently had to work on my 99 dakota pickup ac. I was using my harbor freight ac gauge set and I was having trouble making heads or tails of the info I was getting.

So I watched a few(dozens) of youtube videos about ac in cars and came to the conclusion that my orifice tube or dryer was plugged up.

Not a super big deal, unless you don't know how to release the connections on the tubing and dryer. Which I did not.

You have to use a tool designed for disconnecting fuel lines.

When I finally figured it out, I tell ya I felt like a complete dumbass.

But I got it done. Got out my harbor freight vacuum pump and started pulling a vacuum. Had a heck of a time holding vacuum until I figured out the damn low and high pressure adaptors on the gauge set were leaking air.

Added R134A freon to the system in the required amount and got really good cold air.

That was about a month ago and it is still working. Thank God. It's already getting too hot for me.

Did you know the idiot powers that be are phasing out r134a freon in favor of something called hfo1234yf.

That's bullcrap. The stuff is "mildly flammable" and costs about 10 times more than 134.