If it's just the compressor, buy one at a junk yard or on ebay that will fit your truck. It's a pretty easy install, you have lots of room on that truck. Pretty straight forward. I'm assuming the refrigerant leaked out, so you can do no additional harm to the ozone. Check to make sure though, on the low pressure ref. Line, the fat one, there is what looks like a valve stem. Open that cap and push the valve in for a second. If you hear pressure, you'll need to go to a shop to have the freon captured, it's the law, at least where I am anyway. If you have no pressure, swap out that pump. You can get the new refrigerant at Walmart or Autozone, just follow the instructions putting it in, don't worry about old and new freon, it will work just fine with the new stuff. The only thing you may need is the conversion kit which is a couple bucks and just a fitting to accept a larger filler. Remove this fitting when you're not filling, they tend to leak. Make sure the car is running and AC blowing full cold. It will seem like it's not doing anything until you get enough in thetre to keep the compressor on, It shuts off if the pressure gets too low. Also, the cans get cold while filling, so you may need to stop for a while and let it heat up, because a cold can doesn't have enough pressure. Let me know how it works out. It's not a big deal if you have an adequate set of tools.
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Saturday, January 14th, 2012 AT 2:37 AM