HVAC - Air Conditioning / Heating - Troubleshooting, Questions, Info
#226
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I think that's exactly right - they've recharged it every year for the previous owner to kick the can down the road.
I will call in tomorrow to confirm what work they've done to resolve the A/C - I guess for them to do a proper job and truly resolve the issue they will have to take out the dash and investigate the evaporator which I feel is highly unlikely what they will actually do...
I will call in tomorrow to confirm what work they've done to resolve the A/C - I guess for them to do a proper job and truly resolve the issue they will have to take out the dash and investigate the evaporator which I feel is highly unlikely what they will actually do...
Last edited by ASE; 07-15-20 at 10:04 PM.
#227
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It has a leak. It's a closed system, it doesn't just evaporate with time. I would not buy that vehicle, unless you're prepared to replace the A/C.
#228
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A leak does not require replacing the A/C ... it requires repairing the leak ... with the challenge being finding the leak which takes labor hours to discover the leak location. The fix may be as superficial as a leaking connector, but based on location may require “dash surgery” for access.
#229
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The danger here is that the seller may have the attitude "Hey, the AC works now ... so it's fixed" ... maybe the case, but for how long ? You have no way of knowing if the leak has been fixed ... and there is a leak without question. Yes, you can insist that they fix the leak ... and they can tell you that they fixed the leak ... but with a full freon charge, you will have no way to verify that this is in fact the case until at a later date when you will have no recourse. So the long-short ... if you proceed, you need to get in writing a guarantee that ANY failure of the AC system to provide cooling specifically due to freon loss for a period of xx-months will be fixed free of charge (with a loaner car).
Last edited by ASE; 07-16-20 at 09:31 AM.
#230
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The danger here is that the seller may have the attitude "Hey, the AC works now ... so it's fixed" ... maybe the case, but for how long ? You have no way of knowing if the leak has been fixed ... and there is a leak without question. Yes, you can insist that they fix the leak ... and they can tell you that they fixed the leak ... but with a full freon charge, you will have no way to verify that this is in fact the case until at a later date when you will have no recourse. So the long-short ... if you proceed, you need to get in writing a guarantee that ANY failure of the AC system to provide cooling specifically due to freon loss for a period of xx-months will be fixed free of charge (with a loaner car).
#231
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the price would have to be below kbb "fair" trade in value for me to consider it... too much risk and too many used GX's to pick from to consider vehicles with suspect maintenance history.
#232
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Agree ... deduct the price of replacing the evaporator coil (and both hoses) from the purchase price ... and call it even given that would be a worst case scenario ... but better to move on given there are too many GX460's out there to inherit a potential nightmare.
#233
Driver School Candidate
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Thanks everyone, very insightful advice here - the dealer got back to me today and as expected, he recharged the system and it blows ice cold. I mentioned my concern of an unfixed leak and potential for ongoing issues and he seemed happy to run this by the techs tomorrow so we'll see. But as it stands, it doesn't make sense to take the risk on the car - it is a $27k car with 55k miles so while that is good value, its not worth the future hassle.
#234
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There are also refrigerant and heater lines that go back to the 3rd zone evaporator & heater core (if equipped)
#235
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Hi
I have owned a GX 460 since 2015 - 4.6l gasoline .
In the last 6 months, I have 2 issues with AC where they had to replace the blower and once the entire unit .
I am worried as the car just ran out of warranty,
Anything i need to check for or is this any common issue elsewhere
I live in UAE , where the AC is used almost constantly
I have owned a GX 460 since 2015 - 4.6l gasoline .
In the last 6 months, I have 2 issues with AC where they had to replace the blower and once the entire unit .
I am worried as the car just ran out of warranty,
Anything i need to check for or is this any common issue elsewhere
I live in UAE , where the AC is used almost constantly
#236
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AC issues aren't common but here was a member who replaced the AC compressor
https://www.clublexus.com/forums/gx-...placement.html
I've heard of a few blower motors and a few low charge scenarios elsewhere but nothing else.
There is a built in diagnostics if you ever need it as well
https://www.clublexus.com/forums/gx-...eshooting.html
https://www.clublexus.com/forums/gx-...placement.html
I've heard of a few blower motors and a few low charge scenarios elsewhere but nothing else.
There is a built in diagnostics if you ever need it as well
https://www.clublexus.com/forums/gx-...eshooting.html
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Acrad (08-03-20)
#239
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One thing to check is the cabin air filter first before you swap out the fan.
A dealer swapped out the filter on my moms RX years ago and it made a buzzing noise. I pulled out the filter, reseated it and the noise went away. I'm not sure exactly what the problem was (filter in wrong, cover not snapped in correctly, or what, but it fixed it. The dealer initially opined that the fan was bad.
A dealer swapped out the filter on my moms RX years ago and it made a buzzing noise. I pulled out the filter, reseated it and the noise went away. I'm not sure exactly what the problem was (filter in wrong, cover not snapped in correctly, or what, but it fixed it. The dealer initially opined that the fan was bad.
#240
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Are you noticing obvious changes in temperature adjustment as well as all vent modes?
Need to rule out you don't have a HVAC servo that needs to be replaced as well.
Need to rule out you don't have a HVAC servo that needs to be replaced as well.