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#1
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A/C High Side fitting/Low side fitting location?
The A/C on the 1984 300DT stopped working. I noticed green colored fluid around the hose fitting on the hose fitting coming from the receiver dryer going to the expansion valve. I thought perhaps all the R12 had leaked out so I went to replace the hose and disconnect it from the expansion valve. as soon as I turned the wrench, refrigerant began to leak out under pressure! So....I quickly re-tightened the fitting.
Now, I want to hook up a Manifold gauge set to check pressures to see if the R12 is still holding pressure or if the receiver dryer hose failed or possible compressor failure. Question: Where is the high side fitting located and where is the low side fitting located on a 1984 300DT? |
#2
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behind the alternator on the passenger's side of the engine... right in front of the turbo...
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#3
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OK, bled the hoses per the manifold gauge set instructions. revved the engine slightly and got 240 on the high side, 90 on the low side. when revving the engine, the A/C compressor sounded like it was throwing ball bearings around inside; it sounded like it was about to explode! It is an Advance Auto made in china model so I'm thinking this points to a compressor failure? who makes a high quality compressor?
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#4
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this website
I ordered one from Phil last week. Here are the results:
How did this get in my garage? Can you say 40.7F at the center vent in a 240D? Now, granted, it was only 73F that day. If you have 90PSI on the low side.....doesn't that mean your expansion valve needs to be replaced?
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daw_two Germantown, TN Links: Sold last car --- 05/2012 1984 300D Light Ivory, Red interior Cluster Needles Paint New Old Stock (NOS) parts Past: 3/2008 1986 300SDL "Coda" 04/2010 1965 190D(c) "Ben" & many more |
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