At 60k mi. A/c works fine then next day won't blow cold on usual settings. Then works fine again for months and probably over a year. Now at 72K mi same problem. Is this a switch or something since I am not hearing the a/c clutch engage? Hopefully tomorrow it works as it starts up again after a day or two. What could be going bad or is loose?
View 4 RepliesI was wondering if there is a vent setting to just blow air through the cabin or is it required to set a temperature to have the fan blow air?
View 13 RepliesThe fan in my 2011 Matrix is only blowing on the highest setting (4), heat and air is ok. Is this a fuse issue?
View 6 RepliesI'm at the end of my rope! My 2005 Ford Five Hundred Limited has a constant problem with the A/C system and overheating. In the last year I've replaced the compress, expansion valve, dryer FOUR times. They have replaced the condenser, blower motor, and added Freon, and checked for leaks. It will blow cold when running fast and then blow hot. They have replaced belts pulleys, They have replaced the thermostat, fans, coolant reservoir, hoses. and it still overheats. I've taken it to 4 difference mechanics including two dealerships. No one can seem to fix this problem.
View 9 RepliesI own a 2000 Nissan Frontier. Just recently while I was driving (in 15 degree icy conditions!) my heater, which was blowing on setting 2, stopping blowing air. I tried messing around with it, and found out that it won't blow any air on settings 1,2,or 3. It does, however, blow air on setting 4, but that is accompanied by a slight strange noise/vibrating of the dash. The coolant level looks fine and I haven't spotted any leaks anywhere that might indicate that it's the heating core. I thought it might be the resistor.
View 4 RepliesWe had light snow here in Boston tonight, and its a little chilly, nothing crazy. I get into my car after finishing work, start the car as normal and clear the snow off the windows.
Get back in the car, select 'R' and the car doesn't roll back like usual... I apply some gas and... nothing. I try 'D' and again the engine just revs - its just totally failing to get any gears. Engine oil levels are good.
I have a 94 ford Taurus all of a sudden my ac doesn't blow cold and my heat doesn't blow hot. Also every now and again I hear a sound like an alarm clock coming from passenger side??
View 3 RepliesJust purchased 2013 Azera with 14K miles. On third morning of ownership, all radio presets (FM & XM) were gone, trip computer display changed from "distance to empty" to "Trip A", clock time incorrect. Reset all of these and they stay throughout the day. Then, after sitting overnight in garage, all settings again disappear.
View 4 RepliesMy 2005 Prius is having a problem with the AC. It will only blow cold air if the temp is set at MAX COLD. Any other temp setting and it will blow hot air. Really hot air. It makes no difference what the outside or inside temps are. Is there a simple fix for this? I can control the AC by setting it on Max Cold and changing the fan speed, but I would like for it to work on the auto setting the way it is supposed to.
View 3 RepliesI can't seem to get the engine temp to middle range on the marker, but yet my heater blows "to me" hot air. Even while sitting in idle for extended amounts of time I cannot get it to "operating" temperature. I would think if my thermostat was stuck open my heater would blow either cold or slightly warm air. I have the 5.4L engine with knn air filter and no cats.
View 14 RepliesSo even with the AC light signalling ON on my display, the cool AC feel sometimes works well and sometimes will shut off and just blow air. The heater function works fine. I"m almost certain I need to charge in more freon.
View 1 RepliesA couple weeks ago my AC started to blow just hot air. I went to Autozone, picked up a can of AC Pro, emptied the can without overcharging the line, it ran great for 3 days, then it shut off. I thought all the freon leaked out but the next day the AC system came back on. Now it sometimes comes on and off.
I took it to my mechanic. When I first told him the issue, he came back telling me that the AC system was fine. I drove home and as I was about a few miles from my house the AC stopped working. The mechanic said they did see it leaking but to come back a few days once the dye marks the problematic area.
Should I have not used AC Pro? I did not get any error codes when I ran the AC diagnostic. Turning on/off the AC manually does not seem to work. Changing from recirculation to outside air does change much. Revving the engine does not produce cooler air.
I'm not an expert, could there be bubbles in the line causing this behavior? I'm taking my car back in tomorrow morning. I'm hoping the AC stays off so my mechanic can troubleshoot this issue. Sounds like maybe the AC is having a hard time staying on? Bad sensor?
Suddenly yesterday, my AC was blowing hot air on every setting except for Max AC. When on Max AC, then heater control valve closes but with just AC, it opens back up. for floor, defrost, etc. seems to work just fine, but it blows engine hot air at those places except for Max AC.
It seems as though the temperature control is stuck in hot or quit working all together, AND (I'm guessing here) that Max AC overrides the temperature control? That's the only thing that make sense to me.
When I test drove a Sonata Eco last week, I noticed that the AC only pumped out cold air when it was on the "Max AC" setting. As soon as I moved the knob up a bit - still well in the blue territory, mind you - warmish air started coming from the vents. Basically felt like just the fan was on. Power-wise, it was set to "2".
Is this something that's common among Sonatas, or Eco's in particular? Or is this possibly just a result of the car sitting on the lot for a while, and maybe the AC needs a recharge? Living in Florida, good AC is obviously an absolute requirement, and I shouldn't need to keep it on Max all the time just to ensure cold air.
I have no heat in the LS at no settings. The AC runs good but does not seem to be regulated as it blows cold at any temp setting. The fan responds to settings but i still get no heat even with the AC turned off. I would like to find a diagram that shows the locations of the bleed valves to start a coolant air bleed.
View 13 RepliesMy 2008 Elantra blows cold air, but just not as hard as it used to. At max setting, it's not blowing hard enough.
Also, my steering wheel starts to shake pretty bad going 70+ mph. What could be the problem for this?
I don't know the first thing about cars!
I have a 2012 azera, and noticed this a/c issue I have had. Recently when driving, I have notice the a/c intermittently change speeds and blow faster when I am at a stoplight or slowing down.
View 29 RepliesMy 2007 Lexus ES350 with 81,000 miles on it has a very low frequency squeak when the heater is first cold or on low. When I turn up the fan above the lowest setting the squeak will go away. I checked my cabin air filter but it appears to be clean & newly replaced.
View 7 Replies99 f250 4x4 7.3 superduty has no heat. A/c seems to work ok had similar problem last year and replaced heat control switch in dash. Same thing this year, a/c works fine but no heat when turned to red or heat setting. Blower works fine just blows cold air. What may be sticking? Getting cold in MD and (excuse me but) Johnson goes full turtle on my morning ride to work.
View 5 RepliesI have a 2011 Avalon Limited and live in the Dallas area. Are used the auto setting on my thermostat all the time. I noticed that in cold weather, the AC almost always switches on as part of the thermostat function. I don't understand that. For example, its 30 degrees outside, & I select Auto and set the temperature to 70 degrees, and the green AC light goes on. I want to avoid using more gas than I need to use, so I'm wondering why this might be so. It's a simple matter to simply press the AC and turn it off, but I'm wondering why it goes on in the first place.
View 1 RepliesTo kick off the coldest week (so far) of the winter season, I noticed a problem with the heater controls in my 06 Explorer with manual temp. controls. No matter which fan settings I select (defrost, panel+floor, etc), air does not blow through some of the vents. I can hear the fan working and air flows through the defrost vents and through the floor vents, but the there is no airflow through the vents below radio and round vents on the far left and far right sides of the dashboard.
Perhaps related to this problem, a couple months ago I replaced the blower motor resistor because fan speeds 1 and 2 did not work, only 3 and 4 worked, so whenever I would turn on the heat or A/C, it was on full blast all the time. After replacing the resistor, the issue was resolved and all of the speeds worked well. I guess I just never realized the issue with the vents, or maybe the problem happened because I replaced the resistor?
Since I'm not too knowledgeable with the climate control circuit, I'm not too sure where to begin, perhaps the switch or blower motor?