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Discussion Starter · #1 ·
Ok so I was told by dealer that mice had chewed through the AC harness and had a leak in rear evaporator core both things replaced. The van blows cold air while driving it but when idle it gets hot. The compressor was replaced by dealer a year ago, can it be the compressor again? Also I see the recirculating air inlet at the blower motor is broke. It seems like someone broke it and didn鈥檛 say anything馃槨 Is it possible to just replace that without having to replace the entire blower motor assembly? And could that be the cause of the ac not working correctly? It is very hot here in Florida and I am just so tired of going to the dealer for them to tell me is going to cost $2700 to fix something, you fix the problem then there鈥檚 still something wrong. Please help! Advice and suggestions will be greatly appreciated.
 

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2014 Sienna LE
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Why do you keep going to that dealer? What happened to that AC shop you said you were going to go to?

It may be better to keep your AC problems in the same thread. You've started at least 5 different AC threads in the past few weeks and people don't have context for what the issues are without digging back at your posting history.


The van blows cold air while driving it but when idle it gets hot
This could potentially be caused by the radiator fans not turning on when the AC is on. If you turn on the AC, do the radiator fans turn on and blow? They may not be on constantly, as they will cycle on and off as the compressor cycles on and off, but if the compressor is engaged, the fans should be running.

And could that be the cause of the ac not working correctly?
No. A broken recirculation damper will prevent you from switching between recirculation and fresh air, but will have no effect on AC temp, other than that you will get better cooling in recirculation mode, but it will cool either way.

If you want information on how to do things, there are two places I would look.

The first place is tsienna.net. There is a factory service manual (FSM) posted for a 2nd gen Sienna. This will have many sections that are similar, or even the same, as the 3rd gen. But to emphasize, it is for a 2nd gen Sienna, and not everything will be applicable to yours.

The second place is actually my first choice for DIY work. That is the official FSM which you can obtain at techinfo.toyota.com. You can get a 2-day, 1-month, or 1-year subscription. With any subscription, you can print out sections for later use. I will print-to-PDF and save PDFs of whatever sections I need for the project I'm working on, plus projects I intend to do. This results in a lot of clicking around, as each section must be downloaded separately, but it's the official repair info from Toyota.
 

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Discussion Starter · #3 ·
Why do you keep going to that dealer? What happened to that AC shop you said you were going to go to?

It may be better to keep your AC problems in the same thread. You've started at least 5 different AC threads in the past few weeks and people don't have context for what the issues are without digging back at your posting history.



This could potentially be caused by the radiator fans not turning on when the AC is on. If you turn on the AC, do the radiator fans turn on and blow? They may not be on constantly, as they will cycle on and off as the compressor cycles on and off, but if the compressor is engaged, the fans should be running.


No. A broken recirculation damper will prevent you from switching between recirculation and fresh air, but will have no effect on AC temp, other than that you will get better cooling in recirculation mode, but it will cool either way.

If you want information on how to do things, there are two places I would look.

The first place is tsienna.net. There is a factory service manual (FSM) posted for a 2nd gen Sienna. This will have many sections that are similar, or even the same, as the 3rd gen. But to emphasize, it is for a 2nd gen Sienna, and not everything will be applicable to yours.

The second place is actually my first choice for DIY work. That is the official FSM which you can obtain at techinfo.toyota.com. You can get a 2-day, 1-month, or 1-year subscription. With any subscription, you can print out sections for later use. I will print-to-PDF and save PDFs of whatever sections I need for the project I'm working on, plus projects I intend to do. This results in a lot of clicking around, as each section must be downloaded separately, but it's the official repair info from Toyota.
Sorry I didn鈥檛 know how to merge them together. It also only cools on the passenger side and not the driver side until we are driving it. I will get a subscription. Thank you so much.
 

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Discussion Starter · #4 ·
Why do you keep going to that dealer? What happened to that AC shop you said you were going to go to?

It may be better to keep your AC problems in the same thread. You've started at least 5 different AC threads in the past few weeks and people don't have context for what the issues are without digging back at your posting history.



This could potentially be caused by the radiator fans not turning on when the AC is on. If you turn on the AC, do the radiator fans turn on and blow? They may not be on constantly, as they will cycle on and off as the compressor cycles on and off, but if the compressor is engaged, the fans should be running.


No. A broken recirculation damper will prevent you from switching between recirculation and fresh air, but will have no effect on AC temp, other than that you will get better cooling in recirculation mode, but it will cool either way.

If you want information on how to do things, there are two places I would look.

The first place is tsienna.net. There is a factory service manual (FSM) posted for a 2nd gen Sienna. This will have many sections that are similar, or even the same, as the 3rd gen. But to emphasize, it is for a 2nd gen Sienna, and not everything will be applicable to yours.

The second place is actually my first choice for DIY work. That is the official FSM which you can obtain at techinfo.toyota.com. You can get a 2-day, 1-month, or 1-year subscription. With any subscription, you can print out sections for later use. I will print-to-PDF and save PDFs of whatever sections I need for the project I'm working on, plus projects I intend to do. This results in a lot of clicking around, as each section must be downloaded separately, but it's the official repair info from Toyota.
By the way I did not go back to the dealer the shop couldn鈥檛 find anything other than those problems which were fixed. The AC harness was repaired and the rear evaporator core was replaced. It was so clogged and leaking they showed me it was bad and it seemed to be working when I took the van back but now it鈥檚 doing all that which that tells me they didn鈥檛 check everything. I鈥檓 going Tuesday to Ice Cold Air and Muffler let them diagnose.
 
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