Planning to replace expansion valves and compressor in wife's car myself this weekend. Anyone know an economical place to have the system discharged and recharged before/after the repair in DFW?
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I don’t but tuned in. I need to replace basically everything on my beater 12valve project. -
Honestly they usually just charge you for new stuff when they put it back in. How they pay for the machine. If its just 134a Id just get some new cans and vent it out.Comment
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To recharge it right you really need to pull a vaccum on the system. The valves are nothing, super cheap. Just have the shop discharge, put new Schrader valves in and recharge. No sense in making multiple trips.Originally posted by denimdeerslayer View Post
Edit: missed the compressor part. If the compressor took a dump and ran oil thru the system you will need to change condenser as well
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If its an older vehicle with r134, do as denimdeerslayer stated. If its a newer vehicle with r1234yf, it might be a little tricky-er. That stuff is suppose to be flammable, but "does not damage ozone layer".
Probably could just vent it carefully also and just get buy a vacuum pump and gauge set. Likely still cheaper than taking it to a shop.
Not sure about having to replace condenser because of oil. There are some good flushes out there to remove oil.
JComment
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You used to be able to rent/borrow a vacumn pump from the parts store. The government has probably stopped that so you cant do it yourself.Originally posted by JhuntsAlot View PostIf its an older vehicle with r134, do as denimdeerslayer stated. If its a newer vehicle with r1234yf, it might be a little tricky-er. That stuff is suppose to be flammable, but "does not damage ozone layer".
Probably could just vent it carefully also and just get buy a vacuum pump and gauge set. Likely still cheaper than taking it to a shop.
Not sure about having to replace condenser because of oil. There are some good flushes out there to remove oil.
JComment
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Its a 2013 Toyota Sienna...I think its R134a.
I put gauges on it at Autozone and high pressure wasn't abnormal, but the low pressure-side was indicating it was overcharged (70ish). A/C still cools, but not well.
How would I know if compressor leaked oil. Also seems there is an expansion valve on rear as well..should I just plan on changing both due to cost?Comment
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One more fun fact...wife said today she heard a rattle when I got home...popped hood and coming from the vicinity of the compressor pulleyComment
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I’m in the middle of replacing a AC system on my wife’s car . Had a broken AC line so I didn’t have to worry about discharging it. Had a heck of a time getting my parts.actually still waiting on the line that was broken . Compressor was shot . I’m lucky a buddy of mine does mechanic work on the side. Just for the record a AC replace on s infinity is a pain in the butt .
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Very easy to do, rent a vacuum pump at autozone and pull a vacuum. Then replace FreonComment
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Was able to confirm O'Reilly still rents vacuum pump and the flush tool if I have a mess. Going to go ahead and have the condenser on hand as well as it wasn't too expensive.
Seems the other noise is coming from the water pump bearing so I got that going for me...i guess I'm lucky as its at least near the compressor
Going to make for a fun weekend...Comment
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Thing will be good as new by MondayOriginally posted by Sethmac View PostWas able to confirm O'Reilly still rents vacuum pump and the flush tool if I have a mess. Going to go ahead and have the condenser on hand as well as it wasn't too expensive.
Seems the other noise is coming from the water pump bearing so I got that going for me...i guess I'm lucky as its at least near the compressor
Going to make for a fun weekend...
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Might as well replace the idler pully and the tensioner while you're in there.Originally posted by Sethmac View PostWas able to confirm O'Reilly still rents vacuum pump and the flush tool if I have a mess. Going to go ahead and have the condenser on hand as well as it wasn't too expensive.
Seems the other noise is coming from the water pump bearing so I got that going for me...i guess I'm lucky as its at least near the compressor
Going to make for a fun weekend...Comment
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If you have to add PAG oil (or the equivalent for your application), use the kind that has fluorescent dye so you can find any leaks.Originally posted by Sethmac View PostWas able to confirm O'Reilly still rents vacuum pump and the flush tool if I have a mess. Going to go ahead and have the condenser on hand as well as it wasn't too expensive.
Seems the other noise is coming from the water pump bearing so I got that going for me...i guess I'm lucky as its at least near the compressor
Going to make for a fun weekend...Comment
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