Year: 2001
Make: Toyota
Model: Sienna XLE
Engine Size: 3.0
I pulled a vacuum on the van and it pulled down quick and held for a while so I charged it. It only lasted about a week. I pulled a vacuum again and put in a can of freon with dye. No longer than the charge lasted I thought the leak would be obvious, but I can't find a leak.
Are there any hard to find places that these vans are prone to leak? It does have rear air.
Thanks,
David
check your evap drain tubes. Also, place a plastic bag or shower cao arounbd the compressor and let it sit over night. The place a sniffer in the plastic bag or shower cap.
I used the detector in the vents front and rear. Stuck it up the rear evaporator drain. I couldn't locate the front drain. Compressor looks dry. Still can't find any evidence of a leak. I know it is there somewhere.
Put dye in and ran it for a few days. Only dye I could find was around the service ports. Replaced the valve cores and recharged.
Keeping my fingers crossed!
did you ever find the leak? and how did you fix the a/c
The new valve cores stopped the leak.
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