Last post on Feb 10, 2013 at 2:29 PM
You are in the Toyota Avalon
What is this discussion about?
Toyota Avalon, Heating / Cooling, Sedan
#201 of 217 Re: Little heat in 1997 Avalon XL [cowboy88]
Jan 12, 2010 (4:40 pm)
Ah! Toyota Avalon and its bloody stupid heating and cooling system.
My 2001 has perfect air conditioning but heating is garbage...went to dealer and they say these cars don't heat too well. Big problem is that the car heats sort of o.k on the drivers side, but passenger freezes.
The dealer wanted $ 3000.00 to replace some flap that does not open or close close to the heater core. I think it is shameful of Toyota to not own up to this obvious bad engineering.
Anyway, you say the heat does come but only upon recirculation. That tells me that the the heater core is not warming up enough for the fan to blow hot air over it but keeping stale air in does a bit of a trick.
I would try and find the highest degree or "hottest" marked thermostat I can find and install it. Someone suggested it and I am certain that the thermostat is old and is stuck in an open position.
I am always a bit ticked off when someone says " hey, the car is 13 years old"
So what! I have a couple of cars that are 17 and 22 years old but apart from some routine parts like water pumps, alternator etc...I have never had to piss around with this dual air climate nonsense that Toyota suffers from. My 19 year old Audi never ever had heating or cooling problems.
#202 of 217 Re: Little heat in 1997 Avalon XL [cowboy88]
Jan 15, 2010 (8:52 am)
Thank you all so much!! I am re-reading the posts to see what the best course of action is. I made a mistake in my post. My wife's Avalon is a 1999 not a 1997.
I was thnking about my truck for a moment. Sorry.
#203 of 217 98 avalon blower only works on low
Jan 15, 2010 (7:30 pm)
my wifes 98 avalon is having trouble with the blower, it only works on low now. it was working intermittently but stopped doing that too. i tried replacing the blower relay did nothing. tried replacing the blower, nothing. just don't know what else to try. it has the automatic climate control, should i replace the controls? any ideas would help tremendously.
#204 of 217 AC/Heat controls in steering wheel
May 30, 2010 (1:15 pm)
While making slow left turn in 08 Avalon my AC or heat turns off .. Dealer claims I accidently shut off ... this happens daily..and always at slow speed.
#205 of 217 96 avalon a/c troubles...
Aug 19, 2010 (12:16 pm)
I have a 96 avalon that i bought 6 yrs ago. I have never had any problems until now. My a/c had always almost overworked. Making my car very cold. now it only works maybe 2-3 days then gave out very little air for about a month.
When i would drive it and make turns i could hear water swishing but could not tell where it was coming from.
I wonder if anyone else has experienced this. If so, could you tell me short of taking it to a mechanic what was done to fix it.
#206 of 217 2007 Avalon - When in park or stopped and AC running, RPMs fluctuates
Sep 15, 2010 (10:18 am)
I own a 2007 Toyota Avalon and am having the following problem.
When the car is stopped at a traffic light or in park and the AC is on, the RPMs will fluctuate. RPM will increase by 250 - 750 above idle every few seconds and then drop.
The symptoms go away when the AC is turned off or set to MAX Cold Temp and High Fan. Fluctuations are greater when the AC fan is set to its lowest speed.
#207 of 217 Re: 2007 Avalon - When in park or stopped and AC running, RPMs fluctuates [manav82]
Sep 18, 2010 (8:47 am)
SOP, the engine "idle" RPM is changed as the A/C compressor clutch cycles, engages and disengages due to refrigerant flow demand. Lower blower speeds, in general, make the system more efficient and thus longer cycles.
#208 of 217 o6 Avalon XLS intermittent a/c
Jun 05, 2011 (1:27 pm)
I have an 06 Avalon XLS with 138,000 miles. I have started having this a/c problem where the compressor just seems to stop working. I can tell by the smell! Toyota told me it needs a new compressor at the cost of $1800.
The issue though I can press the AC button on and off within a second and the AC starts working again instantly! I do not think it is a compressor, but I can not find a blog that discusses this particular problem.
I am hoping that I will get a good answer here to tell me what to look for or what to mention when I take it to an AC mechanic. I want to kinda know what I am talking about.
Thanks to all that comment.
#209 of 217 Re: o6 Avalon XLS intermittent a/c [fsimcic]
by MrShift@Edmunds HOST
Jun 05, 2011 (2:22 pm)
You may wish to consult your owner's manual for testing purposes. The system in your car is quite complex and uses various computers and sensors to control the compressor. :
SELF-DIAGNOSIS: Air Conditioning ECU has a self-diagnosis function. It stores any operation failures in the air conditioning system memory in the form of DTC (Diagnostic Trouble Code).
There are two methods for reading DTCs. One is to use a hand-held tester, and the other is to read the DTC on the heater control panel switch.
DTCs are shown on the center display or multi display of the multi-information display, and on the hand-held tester.
#210 of 217 Re: o6 Avalon XLS intermittent a/c [Mr_Shiftright]
Jul 01, 2011 (12:19 pm)
Could you please tell me how one gets the DTC on the heater control panel switch?