Questions tagged [ac]
Questions about Air conditioning systems - other Heating and ventilation questions should use 'hvac'
177
questions with no upvoted or accepted answers
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'07 Escalade - AC issues
2007 Escalade AWD.
Yesterday, I noticed that the air conditioning keeps turning on and off.
To clarify: the control unit does not indicate that it's turning off. I still have the fancy snowflake ...
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votes
1
answer
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2006 Jeep Liberty - AC clutch won't engage
The AC clutch on my Jeep Liberty 2006 won't engage. Here is what I have checked so far.
Fuse 14 in the passenger cabin
21 in the engine compartment are ok
AC relay ok
When I jump the AC relay I ...
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4
votes
0
answers
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Replacing/upgrading from R12 to R134 system in 71 C10
I am upgrading to R134 in my 71 C10. I have a re manufactured compressor to use R134, I have replaced the POA valve, in the process I have replaced the o rings. Looking at the new POA valve (Old Air) ...
4
votes
1
answer
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One side of 2015 VW passat gets cold air and the other side hot
Good day,
I have a 2015 VW Passat. TSI engine 1.8.
In the defrost duct on the instrument panel flap adjust motor is down in the
open position. This is causing frost on the outside of the windshield....
- 41
4
votes
0
answers
110
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2014 Toyota Matrix: inadequate AC
I bought my car in November 2014 and from day-one the AC doesn't seem to work very well. In the winter when it's set to defrost the windshield, there is a lot of fog build up on the glass, and the air ...
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132
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Highest Fan Speed on AC/Heater Blower no longer works.
I've found a couple of posts here about blower fans that only operate on high speed, but the issue I'm having is the opposite. All of the fan speeds work except for the highest speed (really the only ...
- 171
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0
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AC suddenly stopped working?
After few hours driving in town with a lot of traffic my AC was working fine, keeping low temperature inside. Then I had to stop the engine for few minutes and when I turned it on, although the AC ...
- 600
3
votes
2
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Can power steering groan be caused by load of AC compressor?
Car: BMW 2007 530i (N52 Engine) 210,000KM
Details:
Single accessory belt for AC, Power Steering, Alternator
AC is clutchless variable displacement
Tensioner and idler pulley's replaced
Problem:
...
- 1,093
3
votes
0
answers
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2014 Hyundai Tucson cooling fan not running
So our 2014 Hyundai Tucson (GDi) cooling fan doesn't seem to come on when it's hot or when the ac is on. The ac only blows cold when the car is moving and the car sometimes overheats when idling. I ...
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2006 Matrix air conditioning fan changes speeds when set at high, but air flow seems the same?
The fan set at high sounds like it fluxuates in speed, but the air flow seems to be the same? Have had checked at dealer. They replaced fan, but still have the problem! They do not know what is wrong....
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3
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0
answers
495
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ac only works on high
Last year I changed out my father's 2003 Dodge Ram van's blower motor resistor after hearing complaints about his AC only working on high.
I did some googling and found that many people pointed ...
- 357
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0
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63
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Finding Replacement AC Condenser
I inherited a 1984 Toyota pick-up from my father when he passed 25 years ago. The AC Condenser is leaking and needs to be replaced. Toyota no longer makes the condenser, and I have been unable to ...
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3
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0
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2004 Ford Ranger heater stopped working after repair
I had my AC repaired by the Ford dealer. They said they investigated the whole system and only found it was low on refrigerant so they recharged it and everything was great... Except now my heater ...
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3
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0
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2000 Buick Regal Heater/Air Malfunctioning
Background
I have a 2000 Buick Regal.
The Heater/Air Conditioner runs erratically. Sometimes when set for air conditioning it will blow hot air out on both passenger and driver sides, sometimes ...
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3
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0
answers
133
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2010 Volvo S80 - Cabin HVAC system schematics
Something in my sedan's cabin air system smells bad (organic bad, not mechanical bad), even after changing the cabin air filter.
I have a bore scope, vacuum, compressor, and hoses sufficient that I ...
- 1,189
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Inverting the A/C VSV Switch
I bought a 2E Carburetor for my 4G13 Engine. My Problem is that 2E Carburetor Idle Up A/C Vacuum Actuator needs vacuum when the engine is on and when the A/C is On, the idle up vsv will be Off (or no ...
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1
answer
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Heat Pump vs. Air Conditioning -- Especially in EVs
My understanding is that a heat pump (as a heat source) is essentially an "air conditioner running backwards" -- given that, and since air conditioning is an (almost) universal feature in ...
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20
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Replace radiator
In changing a radiator in a 2005 GMC Canyon with a 3.5, 2 wheel drive. Can I get the radiator out without opening any lines on the AC unit. Can I get the AC condenser off the radiator without opening ...
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2
votes
3
answers
279
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Broken AC drain fitting
2008 Toyota Matrix with a broken fitting where the ac condensation drain hose attaches to the evaporator housing. Not being able to run the ac in Texas in the summer is suboptimal, but I'd rather not ...
- 121
2
votes
0
answers
93
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Nissan Tiida a/c airflow dries up after 45 mins
I have a 2012 Nissan Tiida and the a/c works great at startup on all 4 speed settings.
I live in Dubai, and in summer (now) its 45C so its very hot outside. That being said the A/c is great... for ...
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2
votes
1
answer
231
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AC compressor clutch snap ring holes covered up by something
I'm trying to get the snap ring out of the AC compressor clutch but the holes on the snap ring are covered up. It seems to come from below the holes and protruding out of the holes. I am leaving ...
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2
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0
answers
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2015 Chevrolet Silverado AC blowing hot air?
My 2015 Chevrolet Silverado is blowing only hot air when having the AC on. Looking for possible answers what might be the problem. The compressor is working, because when I add R134a to the system it ...
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2
votes
1
answer
657
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I have a 2016 Hyundai accent sport, car dies when it's idling and the A/C is on
The car runs fine otherwise, just shutters and dies if the A/C is on and I'm idling. I put in new plugs and a purge valve, but the check engine light keeps going on and off over the past year. I ...
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0
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Why may heating gradually stop after some time driving (and doesn't work in passenger side at all)?
This is a somewhat strange problem. Heating (in driver side) seems to work normal - after somewhere between 15-25 mins. driving or so, it gradually stops working. The warming in passenger side doesn't ...
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2
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0
answers
39
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Missed a connector in my AC system?
I just changed the heater core in my 1999 Subaru Legacy Outback. I had to take the dash out, and disconnect many connectors. After putting it all back together, my heat now works (yay!), but my AC ...
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2
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65
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Clunk sounds in rear when A/C engaged - 2006 Subaru Impreza
First off, I don't have much experience with cars. I've googled the issue and have come up empty.
I've got a 2006 Subaru Impreza Wagon with 170,000 miles. In the last month, a clunk has been ...
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2
votes
0
answers
231
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Ac blowing hot air and only works when temp is below 80
I have 2016 VW Jetta S. My Ac blows warm air and only blows cold when the car temp says 80 or below. If it’s above that number it won’t get cold. I’ve changed the compressor, condenser, and evaporator....
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2
votes
0
answers
377
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A/C Air Recirculation
In my 2017 Toyota 4Runner I'm interested in a solution to keep recirculation on by pushing a button even when the defrosters are on. In other words, a wire to override the defrosters so recirculation ...
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2
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0
answers
8k
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AC clutch engages no cold air, equal pressure across lines
I recently took my Honda Accord to the mechanic and it was found that there was equal pressure on the high and low side AC lines (around 90 psi on an 80°F day). However the clutch was still engaging ...
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2
votes
2
answers
174
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Ac in van is blowing hot air but condensation is dropping
Is there a reason why condensation would be dripping from a van that isn't blowing cold when the AC is set to Max and recirculate? It's a 99 Chrysler Town and country. It is a manual temp control unit....
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2
votes
1
answer
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2003 Toyota 4Runner blinking a/c light - hot air
Blinking A/C light on my 2003 Toyota 4Runner.
Must have a slight leak, I would add refrigerant from a can and be good all summer.
This year although I replaced the A/C relay the a/c light on the dial ...
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2
votes
2
answers
2k
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Rumble when turning engine off with aircon on
I have a 14 plate Fiesta - the air conditioner in the car seems to be linked to the main air intake so if you turn the aircon on it sounds like the fan is working really hard (which I guess is because ...
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2
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0
answers
958
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I have a 2008 Mazda 3, and it's not blowing cold air
I have a 2008 Mazda 3, and during the winter, we had a few warm, wet days, and I tried using the AC, and it wasn't blowing cold. So now that spring has sprung, I'm looking to get this fixed up. So ...
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2
votes
0
answers
41
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A/C working but engine overheating
I have a 2004 Chevy 2500 6.0 and the AC compressor belt was not on when I bought the truck, so I put one on today and it worked great until I was parking, the dash said "Engine Coolant Hot" and ...
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2
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0
answers
272
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Air conditioning hisses, but gauges show pressure, no cold air
So my 2010 VW Routan's (basically a Dodge Caravan) AC has gradually stopped working. I figured I had a small leak and it finally just didn't have enough juice to cool.
I have a set of gauges that I'...
- 13.3k
2
votes
0
answers
30
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Battery problem for paddy harvester
My harvester vehicle is Claas make. Model Crop tiger 40. I locally fabricated AC cabin for this vehicle. After AC installation, if my vehicle run one day in AC next day morning it is not getting self ...
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2
votes
0
answers
63
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Can I add a rear evaporator in place of my rear heater for my passengers
I live in a hot climate. I do not need heat to my rear passenger feet. Can I run A/C pipes instead of hot water and replace radiator with an evaporate. The Vehicle is a 1988 Toyota BJ74. The blower ...
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2
votes
0
answers
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Clicking noise when stopping and accelerating. AC issue?
I drive a 2014 Corolla LE. Whenever I accelerate or brake, I get a tap or a click from within the dashboard near the center vent area.
It happens when...
I accelerate from a stop.
I just tap the ...
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2
votes
0
answers
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AC vacuum held at 24in for 5 hrs at elevation 6K' but dropped after 12 additional hours to 16in
AC was not working. I changed the compressor and replaced a few O-rings after using UV dye to locate possible leaks.
I have read that a vacuum should hold for about 30 minutes. My vacuum held for 5 ...
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2
votes
0
answers
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97 ram ac problems
ac did not work. so I opened up the system and found there was no orifice tube. I bought one, put it in and pulled a vacuum. added 134. it worked fine for a while. then it slowly quit. opened up again ...
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2003 Dodge Ram AC malfunction
2003 Ram 4.7L Why would the air work perfectly until stopping at a light and hear a little sound then starts blowing very hot air instead? Even when put in neutral and revved up doesn't help, until ...
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0
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A/C only kicks on when set to defrost
07 Town & Country - The a/c compressor only kicks on when I have the it set on defrost. When I move the setting to vent or anything else it blows cold for about 3-5 mins then it gradually gets ...
2
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0
answers
156
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On my '99 Grand Am the electric windows, A/C, dash gauges, speedometer stop working sometimes
Sometimes they come back on in a few minutes but sometimes it's hours or maybe a day and they will all start working again at same time. Other things like radio, CD player, cruise, horn, wipers, door ...
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2
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0
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540
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AC Honda DX Civic 95 not cooling button for recirc AIR unlit
I have had an issue with a 1995 Civic cooling. It worked 2 months ago. I will try to be specific. I have studied HVAC, Compressors in Blgs, just not vehicles so I know the system somewhat.
It will ...
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0
answers
5k
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Can a blend door be easily fixed/replaced in a Ford Escape Hybrid 2006? Also, passenger side airbag removal?
I recently got my AC compressor fixed, but after doing this it turns out my AC still isn't great because of a messed up blend door (according to my mechanic). Apparently this is a fairly common ...
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0
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bypass the ac compressor with shorter serpentime belt
I have a 2020 Kia Soul LX 2.0 liter 4 cylinder I'm trying to bypass the AC compressor due to its failure what size belt do I need to use
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What is the difference between different classes of AC Compressors?
I am replacing the compressor in a Mercedes W211 E55 AMG. The original part had a solenoid without an integrated diode, but the matched replacement did, so it is incompatible and would not start, ...
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1
vote
1
answer
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AC compressor clutch air gap gets wider by itself after bearing and shaft seal replacement
My parents' 2014 Chevrolet Spin Diesel compressor shaft seal was leaking. We replaced the seal and shaft's ball bearing (located between the seal and clutch plate), add about 44mL PAG oil into the ...
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1
vote
0
answers
34
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New compressor stiff out the box
I just got a new compressor because I’m replacing everything in a contaminated AC system. So I’m replacing expansion valve, drier, condenser, evaporator, and of course the compressor, and cleaned the ...
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1
vote
1
answer
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A/C clutch spins but doesn't engage compressor
A/C clutch rubber blew out on my last a/c compressor so I replaced the compressor and had the system recharged. Now the clutch will start spinning when a/c is turned on but wont engage the compressor. ...
- 11