You are here: Forums SUVs Toyota Highlander Toyota Highlander Heating Ventilation and Air Conditioning

Toyota Highlander Heating Ventilation and Air Conditioning

97 messages,  Last post on Oct 26, 2009 at 2:27 PM

You are in the Toyota Highlander Forum. Your Hosts are steve_ & tidester

What is this discussion about? Toyota Highlander, SUV

Messages Page 8 of 10 1 ... 4 5 6 7 8 9 10 Prev Next Last

Go To Msg # Search This Discussion

#71 of 97 Re: '04 Highlander evap core replacement [ojnucci] by ggartner May 04, 2009 (3:04 pm)
Replying to: ojnucci (May 04, 2009 2:24 pm) Janners: the "Blender Box" is probably what I bought. It has been a while, but I took the module that the knobs hooked into to a junk yard. They found the replacement part - the first one they found, did not work when I installed. They searched other locations around the state and found another one. The second one worked like a champ. I think I paid about $125 for the part finally. Sorry this is not more help. Gary Replies to this message: ojnucci (May 04, 2009 7:42 pm)
#72 of 97 Re: '04 Highlander evap core replacement [ggartner] by ojnucci May 04, 2009 (7:42 pm)
Replying to: ggartner (May 04, 2009 3:04 pm) This helps a lot actually. I have just started the online junk yard scavenging today. However, after tightening the bolt behind the temp control knob it works much better--so I may give it a few months! Thanks Gary.
#73 of 97 a good way to thank you for helping me by kburger1 May 27, 2009 (10:14 pm)
thanks for pointing me to the loose nut behind the temperature control knob. as thanks here is further info. If you tighten the nut and it still doesnt work try taking the nut off completely and gently move the knob to different positions with the blower on max air. If it changes from hot to cold in different positions the 3 wires connecting that control switch to the next upstream board are severed (broken solder joints) you can remove the whole assembly with the radio first disconnect the positive terminal of the battery. the trim around the radio and ac controls just pulls straight out from the bottom and then at the top very easy. disconnect the wires they are keyed, large connectors goto the air controls, small connectors to the radio. you need to resolder the wires back onto the control knob board. I have been soldering along time and it was hard. good idea to test joints with a multimeter. if you short any of them it probably wont work. you will show continuity between wires even when its done correctly, 2 have full continuity and you also have 1 with a resistance of like .7 which i think is an inline resistor. i replaced the existing grey flate wire with 3 small guage individual wires. label it so you dont get any wires crossed. I just got done test driving the car and the ac and heat work perfect. I hope this helps people out there to fix these problems without paying thousand of dollars to the dealer. I just fixed mine for free. Very satisfying. Replies to this message: jorge6088 (Aug 02, 2009 1:58 pm) cps2698 (Sep 06, 2009 8:07 am)
#74 of 97 Problem with air temp changing by rut Jun 03, 2009 (3:12 am)
In my 2002 highlander the air temp will vary with the slightest of bumps. It will jump from hot to cold immediately.    The dealership wants $800 to replace the panel:( I'm thinking it is a loose wire or something.    Anyone else seen this problem?    Rut Replies to this message: mikefm58 (Jun 03, 2009 5:19 am) wwest (Jun 03, 2009 11:44 am)
#75 of 97 Re: Problem with air temp changing [rut] by mikefm58 Jun 03, 2009 (5:19 am)
Replying to: rut (Jun 03, 2009 3:12 am) Start reading posts backwards. Your answer is in there.
#76 of 97 Re: Problem with air temp changing [rut] by wwest Jun 03, 2009 (11:44 am)
Replying to: rut (Jun 03, 2009 3:12 am) "...slightest of bumps.."   Most likely a loose/intermittent connection to the OAT, Outside Air Temperature, sensor mounted behind or on the back of the front bumper just forward of the AC condensor/radiator stack.   And open connection will indicate a sub-freezing OAT and the AC compressor will be disabled and the system will go into heating mode as long as the sensor is open.   Another "bump", connection closes, AC cooling returns.
#77 of 97 '01 Highlander Aircond problem by slowcar Jul 20, 2009 (1:35 pm)
Problem description: in a hot day, the aircond only blows out cold air in the passenger side vents, warm air still in the driver side vents. The aircond was put in the recirculation mode; never have from the outside. My thought was that there was some thing (a valve, maybe?) blocking the cold air from going to driver side.   What's wrong?   Solutions?   Thanks all for help. Replies to this message: Alirob (Aug 07, 2009 1:38 pm) slowcar (Aug 25, 2009 12:26 pm) rohoo (Aug 28, 2009 5:29 am) slowcar (Oct 08, 2009 9:23 am) wwest (Oct 08, 2009 12:14 pm)
#79 of 97 A/C Problems by leean21 Jul 20, 2009 (3:20 pm)
ok, let me try this again, without hitting the enter button before i put a message....anyways, I just recently started having the problem of hot air blowing through while my ac is on, then switching back to cold air....i have tightened the nut behind the temp switch and am hoping that is the fix....thanks so much for all the information...you guys are awesome   Replies to this message: rut (Jul 20, 2009 4:26 pm)
#80 of 97 Re: A/C Problems [leean21] by rut Jul 20, 2009 (4:26 pm)
Replying to: leean21 (Jul 20, 2009 3:20 pm) I actually took it apart and found a broken wire connecting the temp knob to the ckt board. It was a 3 wire cable soldered on each end. I removed the cable and replaced it with 3 individual wires. Problem solved.

Messages Page 8 of 10 1 ... 4 5 6 7 8 9 10 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums SUVs Toyota Highlander Toyota Highlander Heating Ventilation and Air Conditioning