OT: 'nother quick AC recharge question..

I want to make sure I have these right before I do anything else. The charging kit I purchased says that the can will burst if you hook up to the high side port!

As you can see, the yellow port is on a hose that runs from the compressor forward to the radiator area. The red one is on a hose that runs from the compressor back to the firewall area. I believe the red one is the low-side service valve where the r-134 should be added. Right?

However, the AC itself isn't cold yet. There seems to be a problem with the compressor, as it kicks on and off every three seconds or so. I noticed the noise before but didn't realize until I got under the hood that it was the compressor.

Does this "kicking on and off" ring a bell with anyone? Could it be a blown fuse somewhere?

That cycling compressor says it is still low of freon.

The compressor is supposed to cycle, yes. But, a rapid cycling off and on means it is low.

Put your left hand on top of that receiver-dryer. Fill it until it is too cold to hold your hand there.

Allan

I love days like today: this morning, I knew nothing about a AC system. Now I know where all the major components are, and I know how to recharge an empty system. Your help is much appreciated.

Now, could ya run out here and fix mine? I don't have time to mess with it. :>)

Allan

(The fitting, near the compressor in the photo, is the HIGH SIDE port. The LOW side port is in the LARGER low side line, near the accumulator, back near the firewall.) Almost without exception, the smaller line will be HIGH SIDE, the larger line LOW SIDE.

Be smart, follow the rules, install the correct fittings, and then attach a label detailing what refrigerant has been installed, and what oil. This may well save a lot of grief later!

Now I'm really scared to try this!

Yep, you got it. Low pressure back to the cab and high pressure out to the condenser.

Allan

2Itchy aka Itchy2