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Old 06-29-2019, 05:21 PM   #1
Champ
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Default !999 Sl2 AC condenser

Does the radiator have to be removed to remove the AC condenser?
I would also so like to ask about AC flush. There was a sudden loss of the fluid because the condenser was punctured or a line was broken off. What are the steps after the condenser/line is replaced?
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Old 06-29-2019, 05:47 PM   #2
Kaervak
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Default Re: !999 Sl2 AC condenser

You don't need to remove the radiator. The condenser is held to the radiator with two 10mm head bolts and once those are free the condenser slides off the mounting tabs on the radiator fan shroud. Very easy to remove. The kinda PITA is the AC line fittings on the condenser. The one for the receiver/dryer is fairly easy to get to, have to remove the undertrays to get clear access. The "problematic" one is from the high side line. You have to remove the driver's side headlight to get proper access to undo the fitting.


As far as recharging the AC system goes, since it's been open to atmosphere for a while I'd recommend replacing the receiver/dryer as well. Use mineral oil on the o-rings for lubricant, not PAG oil. If you do replace the dryer as well, add 1oz of PAG oil to the dryer and, if I remember correctly, 3/4oz of PAG oil to the new condenser. If the compressor failed, you'll need to get the system flushed and obviously the compressor replaced. However if the system was punctured, line or condenser, you should be fine skipping the system flush. Once you get everything put back together you'll need to vacuum the system down to remove moisture/debris. You absolutely need to do this, do not skip that step. You'll need a set of manifold gauges and a vacuum pump. I got the entire setup from an ebay seller for around $90 shipped and have used them both multiple times without issue. You'll need to vacuum the system down for 30 minutes on both the high and low pressure lines. After 30 minutes, close the valves to the high and low side lines, shut off the vacuum pump and let the system sit with the gauges still attached for another 30 minutes and make sure it holds a vacuum. If the gauges don't move and the vacuum is maintained, you can recharge the system with refrigerant. The S-series takes 24oz which is very handy as Walmart sells 12oz cans for $5 each. When recharging, before opening the low side line to charge, bleed the air out of the charge line and then start adding refrigerant. WEAR GLOVES AND SAFETY GLASSES!! You'll need to have the car running at this point with AC switched on and set to low. Try to have the engine RPM at 2000RPM while recharging. ONLY CHARGE ON THE LOW SIDE LINE!!! DO NOT CHARGE ON THE HIGH SIDE LINE!! The AC will kick on once the pressure switch detects enough refrigerant in the system. You will definitely need both cans to fully recharge the system. Before connecting/disconnecting the refrigerant make sure the valves are closed. The new cans of refrigerant have a self sealing valve now so you'll need an adapter which walmart sells as well. You'll probably also need a can tap.


For a detailed video of how to vacuum/recharge an AC system: https://www.youtube.com/watch?v=lglPJuBXVeE

If you have any questions please ask. It's not a terribly difficult thing to do, but with refrigerant you can get hurt if things go wrong. And if anyone else on the forum sees something wrong with what I've said, please correct me.

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Old 06-29-2019, 07:29 PM   #3
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Default Re: !999 Sl2 AC condenser

^ Excellently written! ^ I have some things to add in the way of procedures from the service manual.
Attached Files
File Type: pdf Service Information-1.pdf (125.9 KB, 4 views)
File Type: pdf Service Information-2.pdf (131.2 KB, 2 views)
File Type: pdf Service Information-3.pdf (128.8 KB, 2 views)
File Type: pdf Service Information-4.1.pdf (146.4 KB, 2 views)
File Type: pdf Service Information-5.pdf (113.2 KB, 2 views)
File Type: pdf Service Information-6.pdf (144.7 KB, 2 views)
File Type: pdf Service Information-7.pdf (87.1 KB, 2 views)
File Type: pdf R134a.pdf (105.6 KB, 2 views)

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