bhuwan

All,

- Lexus performed a repair on vehicle due to major oil leak (took 4 days)
- Brought in vehicle (4 days after repair) due to A/C not working and engine overheating ("air pocket trapped in the cooling system bled the air out from the cooling system")
- 3 weeks later (finally nice weather again - didn't need A/C until now), drove home with same condition as before: A/C blowing air but NOT cooling (try that in 90 degree weather!). This time the vehicle is NOT overheating.


Any suggestions as to why the A/C is problematic? The car is 4 years old (and 2 weeks) and has about 50,000 miles on it.

GS350Lexus

iTrader: (5)

Maybe u need to recharge it with frion, i would take it in to lexus and tell them once they performed fix for the oil problem it stopped working.

bhuwan

A four year old car already needed frion replacement? Does that sound feasible? My other cars have been running strong for 6+ years without having required a replacement. Seems odd that this car would require it barely four gears.

bhuwan

Temp. outside (according to the vehicle) is 72 degrees - I tried the A/C and it worked fine. Seems that high temperatures (90+?) somehow make it so that the AC doesn't work. Could it still be the frion gas?

HomieG

Yes, it could still be the refrigerant. If it is low, then it doesn't provide the cooling capacity needed to remove the heat from the hotter temperatures.

mr3gs300

wats weird is this happened to my 01 tahoe I just kept putting it off to take it to get recharged then one day I turned on the a/c and it was working just fine. I thought it was very strange dont know what happened but its still working fine

passnu2

iTrader: (33)

how did you get an air pocket??

bhuwan

I brought the vehicle in for normal rattles 3-4 weeks back. The dealer informed me that there was a minor oil leak which required taking the entire engine apart. They did the entire service (5 days?) and gave the vehicle back.

Then I went to NYC and upon driving home, the AC stopped working (it was 95 degrees in Manhattan).

Brought the vehicle in and was told the air pocket was caused by the previous servicing (apparently they were supposed to flush the coolant & oil but never did).

bhuwan

Seems to be a problem that others have experienced:

https://www.clublexus.com/forums/gs-...on-gs300s.html

https://www.clublexus.com/forums/gs-...on-gs300s.html

sad

bhuwan

Dealer said it was a "overcharged" A/C - they've fixed it - only time will tell if it's really fixed.

bigred88

check the cabin filter