Question about 1992 Toyota Land Cruiser
Where is the low and the high side of the A/C system and what type of refrigerant for a 1992 toyota landcruiser
Hello, and thank you for your question.
The High side & Low side valves are located in the engine compartment, and can be found on the aluminum lines running from the condenser to the firewall (a bigger tube, this is the HIGH side), and from the firewall to the condensor (in front of the radiator), & back to the compressor (this is the LOW side/a smaller tube). Regarding the refrigerant, you may have a dilemma. Most LCs in 92 came with R-12 freon, and is very expensive to purchase, and, in some places, a license is needed to purchase it. Your system *** may *** have been retrofitted with the "new" style (the "enviromentally friendly" type R-134A) refrigerant. To determine this, look under the caps on the abovementioned tubes. If the metal fittings are small & threaded, you have the original system. If the fittings are large, and are screwed onto a smaller fitting, and are grooved at the center of the upright stem, you have the newer style. You would also have rather large caps with a "H" ans an "L" imprinted on them. If you need to add refrigerent, add whatever refrigerant required into the LOW side, until the bubbles seen in the sight glass adjjacent to the radiator (on the Low side tube) disappear.
Posted on Oct 03, 2008
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Posted on Jan 02, 2017
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Only EPA-certified technicians can purchase R-12 refrigerant, since proper recovery and recycling techniques are required to prevent damaging the environment. Improper disposal of R-12 refrigerant can result in a fine.
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