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Supersteele
Novice
May 2, 2017, 8:03 AM
Post #1 of 6
(1673 views)
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I just replaced the compressor, had it vacuumed and is full of freon but still blowing hot air condenser is cold and clutch engages but still hot air
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
May 2, 2017, 8:09 AM
Post #2 of 6
(1671 views)
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? Need info - Year, make, model and what happened that you thought you needed a compressor?
Any vehicle just FYI: If compressor burned out and about always leaves a debris field downstream that has to be tended to, parts replaced or it can't work yet. It can however ruin your new compressor for not doing it if so,
T
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Supersteele
Novice
May 2, 2017, 8:13 AM
Post #3 of 6
(1664 views)
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I had to change compressor because it was real loud, bearings were shot. It is 94 Chevy s10 v6. So I need to replace the condenser?
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Discretesignals
Ultimate Carjunky
/ Moderator
May 2, 2017, 8:13 AM
Post #4 of 6
(1664 views)
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What are the low and high side pressures with the compressor engaged?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Supersteele
Novice
May 2, 2017, 9:19 AM
Post #5 of 6
(1646 views)
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All I have is a gauge that shows red and and blue and it is in the blue, I don't know about the high side pressure
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
May 2, 2017, 9:53 AM
Post #6 of 6
(1644 views)
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Not good enough. This is first year the vehicle used 134a and fussy for exact amounts to the ounce.
What was really wrong with the old compressor. It doesn't have bearing they are bushings but act the same. The clutch has a bearing that would make noise when compressor is OFF as it's then just a pulley. When engaged the shaft of the compressor is turning and the clutch's bearing isn't being a bearing just still relative to rotation.
If it made noise which time did it make noise matter what you would do.
How much oil came out of old compressor and did you look for debris - muck - black death it's called. That would go on and clog the condenser if HE but might be still tube and fin which could flush out and a new "O" tube installed which would be also clogged.
This is a whole course of study not a can and some parts even a whole compressor isn't the system at large. Oil is in systems to lube the compressor and can move with compressed refrigerant if clogged or too low on charge from near certain leaks over the years they go low and should quit trying to compress gas or burn up.
New compressors have to be spun with oil off car to lube it as while charging it's running dry till it can blow cold then oil moves.
Specs for this show (can be all wrong) 40 oz of 134a and full charge of oil if flushed empty 8 ounces PAG 150. There's no dipstick for that you need to know how much came out of a replaced part and add a little when replaced.
No excuse for most not having real gauges many places rentable free for full deposit as well a vacuum pumps. How low did you pull the vacuum and did it hold?
Lots to know or lots of A/C just sets you back worse off or as bad as when you started.
There's a locked post up top for charging procedures as a rough guide and a long read. Anything less for info for charging mistakes are likely.
BTW you didn't mention a new accumulator always suggested with a new compressor. Warranty is usually void for compressor if it's not replace.
Unfortunately well meaning attempts to fix A/C yourself without pretty good info and understanding of what's happening where it sets you back not just needing more work but what you already did likely ruined - not easy DIY work,
T
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