LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

liquid line...

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Old May 10, 2003 | 09:16 PM
  #1  
slverbullet's Avatar
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From: Gulf Breeze, Fl. USA
liquid line...

hey, has anyone had to change out the liquid line coming off of their a/c compressor (the line going from the compressor to the condenser)? if so, how difficult is it? how many bolts do i have to remove? i couldnt get my a/c to work, so i put some die in with the freon. my liquid line was covered in die where the metal tubing connects to the rubber tubing. ive had the rubber washers replaced and dont feel like paying to have this done. so any help or advice would be appreciated. it looks like its gonna be a snug fit back behind that compressor. i couldnt really see back there that good when i was under there yesterday, so thats why i'm asking. thanks.
dave

Last edited by slverbullet; May 10, 2003 at 09:28 PM.
Old May 10, 2003 | 09:50 PM
  #2  
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I haven't done it on your year car but you will need your system pulled into a vacuum for about 30 min. to get any moisture out. If you don't have a vacuum pump then you may want to have the professionals do it, or you're asking for a problem. You could also do the repair yourself then have a shop evac. your system then charge it. It would be cheaper. Good Luck.
Old May 10, 2003 | 09:58 PM
  #3  
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The A/C lines coming out the back of the compressor are a package deal. Both lines are together permanently, and they are under a single GM part number. It's a beotch to get out, but it's only 1 bolt on the back of the compressor. I think it was around $50-$60 for the part, plus you'll need to recharge your system. No big deal.
Old May 11, 2003 | 10:21 AM
  #4  
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From: Gulf Breeze, Fl. USA
thanks for the help guys. i ordered the part already, so i guess i'm gonna go ahead and do that myself. it definitely looked like a pain in the a$$. ive already got guages and connections to put the freon in with. just out of curiosity, whats the purpose of it being vacuumed? ive never heard of that. thanks again.
dave
Old May 11, 2003 | 11:38 AM
  #5  
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From: Maine
On an air conditioning system it is important to remove any moisture. When a sytem is open to the atmosphere moisture enters, all air contains some amount of moiture. By pulling a vac on the system it lowers the boiling rate of water due to the pressure being below atmospheric. This assures that the system is free of any liquid it also will verify that there are no leaks . liguid is non condensable and can ruin a compressor and water will freeze inside the ac system when temps run below 32. Its also important to have a proper charge in the system as to low a charge will not provide enough cooling and an overcharge will flood the compressor with liquid thus taking out the compressor.
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