Last post on Dec 23, 2012 at 5:06 AM
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Toyota Camry, Heating / Cooling, Sedan
#79 of 107 Blinking A/C light and hot air
Jul 04, 2010 (5:29 am)
I recently bought a 2003 Toyota Camry XLE (35K miles). Occasionally, the A/C light begins blinking, at which time only hot air is emitted thru the vents. I live in Phoenix! Any ideas what is the problem & how to fix? One garage has said it is an electrical problem. They supposedly recalibrated a "sensor" or something, but now the problem has returned. I'm going on a road trip, so need the A/C.
#80 of 107 Re: Blinking A/C light and hot air [clarkphx]
Jul 04, 2010 (6:04 am)
From your owners manual..........
If the “A/C” button indicator flashes, there
is a problem in the air conditioning system
and the air conditioning automatically
shuts off. If this happens, take your vehicle
to a Toyota dealer for service.
You may want to try a more experienced garage...........
#81 of 107 Re: Blinking A/C light and hot air [clarkphx]
Jul 04, 2010 (8:30 am)
Most common problem is that the compressor is not turning cognizant with engine RPM....
Compressor clutch relay failed, failing, belt or compressor clutch slipping...
Drove through puddles/rain...??
#82 of 107 Re: A/C leaking into car [snhoj2u]
Jul 14, 2010 (10:01 am)
I have an 05 camry and had same leaking. Pulled up the floor mat on passenger side and find the drain tube connected to compressor. Is next to center console. Have shop vac ready and just pull off hose. Water will come out if clogged. Tube is only about 6inches long. Poke thru it with something. I found a small plastic ball. Not sure if part of AC or not but was blocking tube. Now just need to dry out under both sides as the sponge like material under carpet has a lot of water. Replace tube and should be fine if that's the issue.
#83 of 107 Camry 2000: AC Only Works on High Setting
Jul 18, 2010 (4:03 pm)
When I turned on my car this morning, the AC was set to the 2nd of 4 levels. Suddenly I heard a low pop and then the AC stopped working. I shut it and tried it again, nothing. I tried all levels and only the high setting worked. Same with the fan and heat, only get wind blowing on the highest level.
Could this be as simple as needing a fan blower resistor? Or does the motor also need to be replaced? Or any other ideas?
#84 of 107 Re: Camry 2000: AC Only Works on High Setting [njtoyotalover]
Jul 18, 2010 (4:58 pm)
Suspect blower resistor.
There's a 4 prong connector, pull that apart and measure the resistance between pins on the resistor.
This will be a little hard to explain, but the plug is oblong. Holding it so that the length is horizontal, on one side you'll have pins 1 and 3, and on the other side you'll have pins 2 and 4.
measuring the resistance from 1 to 3, it should be 1.74 ohms.
measuring the resistance from 2 to 4, it should be .38 ohms
and if you are able to figure out which pins are 2 and 3 (cadicorner diagonal pins), it should be 1.12 ohms.
If you don't get those resistances, replace the blower resistor.
#85 of 107 Camry XLE V6 A/C needs heater head???
Jul 30, 2010 (12:57 pm)
Need some advice please on whether to trust what the dealer is telling me..
2003 XLE V6 with 94K. Over a couple of years the auto A/C had not been switching correctly between air and heat during the transition period to spring in March (we live in SC). It just would not heat when the outside temp. was in the 60's (yes the wife requires it). The first time we asked at the dealers they said something like it was designed like that (as if the car decided when we needed heat). Anyway this spring, it just would not heat, even when set on max heat, this time we were told it was due to a 'thermo regulator valve' or the mechanism that operated the valve that let the heat in. The advisor said it would cost $290 and also 'aren't you glad it's not the whole unit which costs $820.
When I took it in today I'm told it is the $820 part, he descibed it as the heater head. I have a feeling it encompasses the cheaper part that was first recommended. The advisor today tells me they were 'either wrong in the spring, or wrong now (can't believe he'd say that). Advice anyone, thanks..
(The unit was set permanently on A/C this spring and cools fine.)
#86 of 107 Re: Camry XLE V6 A/C needs heater head??? [edmund2460]
Jul 30, 2010 (1:33 pm)
Looked in the factory service manual for you (my words in ()).
For the symptom Temp Contol - no warm air.....
The sequence of items to check/repair/replace are:
- Engine coolant volume (ie...is there hot water that is flowing thru the system)
- Air mix damper servo assembly (this is a doorman who moves a damper door. Like there is a refrigerator on one side, oven on the other. It moves the damper from one side to the other to choose how much hot or cold gets mixed together)
- Cooler Thermistor #1 (monitors the temperature, sends info back to control assembly)
- A/C control assembly (the brains, and the damper)
- Heater radiation sub-assembly (a little radiator, which takes the hot water and heats the air)
- wiring harness
#87 of 107 Re: Camry XLE V6 A/C needs heater head??? [kiawah]
Jul 30, 2010 (6:41 pm)
Thanks for the quick reply kiawah. It looks like the first diagnosis we had in the spring was 'replace air mix damper servo assembly' and now we have moved on lower down the line to control assembly (my ticket says replace ac control head). Apparently this came from running a diagnosis. Could this be overkill, instead of just replacing the doorman they're doing the whole front entrance (so to speak).
This has been giving intermittent trouble long before, but it was never written up or correctly diagnosed then.
#88 of 107 Re: Camry XLE V6 A/C needs heater head??? [edmund2460]
Jul 30, 2010 (5:37 pm)
I do my own maintenance on all of our vehicles, but have never had to tear the dash apart in a Toyota (did my old Vette once, but that was a story in itself). If this was an extra car, where you had the luxery of time, you could take the dash apart and do a lot of diagnosing to find out exactly what small part was binding or not working correctly.
Repair shops don't have the time, and you wouldn't want to pay their hourly rate either for them to do that. So they end up swapping out major FRU's (as we call them in the computer business - field replaceable units). You have a problem with your printer, you just swap the whole thing out, no matter how small the problem might have been.
So they get your heating/ac diagnostics down to 4,5,6 major pieces that the techs can replace, and unfortunately those parts are larger conglomerates of many parts, so they can cost quite a bit. It also means less parts to handle, store, and inventory in the parts distribution channels.
Dealerships/Repair shops have a tough job. Customers are sitting there waiting for the cars, mad that they are inconvenienced and have to even be there in the first place, and mad that they are going to pay what they feel are outrageous prices for labor and parts.
So yes the parts are costly, but if they didn't fix it this way you'd have hours of labor instead that you'd have to pay for.