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Doug, ASE Certified Technician
Category: Toyota
Satisfied Customers: 8611
Experience:  Toyota Expert Certified through 2007
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2004 avalon blows hot air put freon in it no changes

Customer Question

2004 avalon blows hot air put freon in it no changes compressor work fine
JA: Do the vents feel cold? Is there a coolant leak?
Customer: Vents are hot visual check
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes
JA: Anything else you think the mechanic should know?
Customer: Passenger side fan not working even when ac is on
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Toyota Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Toyota
Expert:  Doug replied 1 year ago.


When you turn the AC on, the compressor is engaging I take it?

Does the low side line (the larger diameter aluminum pipe) get cold? If it does, there is likely a blend door issue of some sort preventing the cool air from exiting the registers; if it does not, then we will have some sort of charge/pressure issue. Primarily this is going to be incorrect charge level issues... either due to being under charged, over charged, or "topped off" by adding more refrigerant into a system that already has air in it. As a secondary concern there could be an actual compressor internal issue or blockage in the system, that is pretty rare though.

If the line does not get cold, are you able to get low side and high side pressure readings?