A/C compressor replacement

Tiny
PEAR69
  • MECHANIC
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You need a recovery tank for the refrigerant--a set of good air conditioning pressure gauges for high and low pressure--wrenches and stuff like that. If replacing the compressor you should also replace the accumulator and (if equipped) the orface tube. You also need to measure the amount of refrigerant that is evacuated in order to put the proper amount in. It's not like just adding a can or two of refrigerant. The system must be flushed so the new compressor does not get clogged up. The reason your compressor failed is probably because there was too much wax build up inside of the system. This happens when the system is not serviced properly.
Yes you can do this yourself, however you need expensive equipment to do it right. You also need to know what you are doing. A/C systems in cars operate at very high pressures and can be dangerous. I suggest purchaseing an air conditioning srevice manual for your car before you attempt this.
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
PTERRELL
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Ok thanks. Looks like I've got some books to read. I assume that I can rent this equipment at Autozone or somthing though right?
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
PEAR69
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Autozone has the pressure gauges, but I think you must buy them. As for the recovery tank--I dought it.
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
PTERRELL
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Hmm ok well i'll do some looking arround and see if I can get away with buying as little as I can
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
PEAR69
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I want to remind you that A/C systems run on high pressures and discharging and recharging them is dangerous if you don't know what you are doing.
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
PTERRELL
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Ok well i'll deffinately be careful. Thanks for the heads up.
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
FERGUS
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  • 1988 HONDA ACCORD
  • 4 CYL
  • FWD
  • MANUAL
  • 11,200 MILES
My air conditioning no longer cools the air. According to the Car Care mechanic who examined it, the problem is that the compressor is leaking. He says that it has to be replaced, at a cost of over $500 (plus about $500 in labor), because working on it requires special tools that almost nobody has.

The same mechanics last August replaced valves and o-rings and did a retrofit from R12 to R134 when the air conditioning was no longer working.

More disturbing, the mechanic says that even if I have the compressor replaced, there are no guarantees, and if I do not use it regularly, it may start leaking again because the coolant is very corrosive. In fact, I do not drive very much - often my car will sit in the garage for a week or more between uses.

Comments on what the mechanic told me, and whether it would be worth it to have the compressor replaced?
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
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Hi there,

I would be getting a second opinion. I do not believe that there are special tools to replace the compressor, and if the system is vacuumed down correctly & the receiver dryer is replaced, corrosion will not be a factor, it is when moisture is allowed to enter the system as it causes a chemical reaction that is very corrosive then.

Mark (mhpautos)
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
PAA
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  • HONDA ACCORD
I have a 2001 honda accord vp and it has around 77,000 miles. Two years ago I replaced the air compressor (new) and it had worked fine since a month ago. The mechanic put in about a pound of freon and recharged the air conditioner. He also put in a dye to see if there were any leaks - the air was cool for about a day after that and was warm again (actually it feels like the outside air is cooler). I notice a whirling sound when it's on and a couple of seconds after I have turned it off. The mechanic said that I need another compressor b/c he saw no leaks and the freon was still full. He said that honda's tend to have weak compressor and this is common to change them every 3 years. Has anyone else experienced this with their honda? What would be your advice - I don't want to replace another compressor if it's going only going to last three years?
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
JMJJ27551
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I just posted a message about my 1987 Honda Prelude compressor, it was the original one and lasted about 19 years.
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)
Tiny
PAA
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Thank you for your response. I have been talking with other honda owners and they have mentioned that they have not experienced the same type of problem with their compressor.
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Thursday, December 17th, 2020 AT 9:35 AM (Merged)

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