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Questions tagged [ac]

Questions about Air conditioning systems - other Heating and ventilation questions should use 'hvac'

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1 answer
2k views

AC compressor noise only when car is hot

I recently noticed that my car is making a consistent noise when AC is engaged. Furthermore I found that this noise occurs only when car is hot. Belt doesn't seem to be slipping. Car is 16 Subaru WRX....
1 vote
1 answer
94 views

Was charging the a/c and the pump engaged but just warm air came out

Put a vacuum to the a/c then charged it. It took 1.5 of the 2.5lbs it calls for and so I fired it up and turned on the a/c. The pump engaged but the air was still warm and the pump got real hot, too ...
1 vote
1 answer
4k views

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. ...
1 vote
1 answer
81 views

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 ...
0 votes
2 answers
4k views

Loss of engine power when AC compressor engages

I have a 2008 Honda Civic Si and it runs great. But, whenever I'm driving at about 6mph - 20mph with the AC on, I can feel a drag in the engine (power loss) whenever the AC compressor engages. The ...
0 votes
1 answer
330 views

Fairly new, newly-charged compressor keeps cycling on and off

2005 Mazda 3, A/c compressor and condensor replaced less than two years ago. Last summer I noticed the A/C keeps cycling on and off repeatedly. I have had the unit charged, emptied, charged again, ...
0 votes
1 answer
397 views

How to find out if my car AC needs extra oil and how much to top up?

My car AC has been dead for a couple of years now and I was wondering the following things: How could that affect the AC oil level? Is there anything I should be worried about considering my AC ...
1 vote
1 answer
96 views

2004 Mazda 3S A/C cuts off when accelerating

My 2004 Mazda 3S 2.3L Hatchback A/C has recently started cutting out when you accelerate. When its idling A/C works fine. When I say cut out I mean the compressor cuts off and on while accelerating ...
0 votes
2 answers
31 views

Is this what a bad blower motor sounds like on a 2014 Ford Escape?

I have a 2014 Escape and the blower sounds like the video below. https://photos.app.goo.gl/MCN2MmGPNyair5Rb9 If you don't watch the video, it sounds a little like a 2-stroke motor in the dash and the ...
0 votes
0 answers
11 views

1999 Toyata Camry AC works great half the time

Just recently my air conditioner decided it work when it want to. It will work when I first start the car for an indefinite amount of time blowing nice cold air, but then it will cut off showing a ...
6 votes
2 answers
9k views

Can I use empty refrigerant bottles to store used refrigerant?

Based on symptoms and measurements, I have reason to suspect that my neighbour's car's AC system has too much refrigerant in it. Some of the refrigerant has to go. To my knowledge, even if ...
0 votes
1 answer
25 views

AC works only on idle

I have a 2002 Ford Escape, six cylinders, 4WD. The air conditioner works great when I am going under 20 MPH. It works less between 20 and 40 MPH. After 40, it does not cool down at all. It has nothing ...
3 votes
1 answer
22k views

Air conditioning only makes cold air at idle

I need help finding why my car's air conditioning (2011 Ford Mustang v6) is only blowing cold air at idling and not while driving on the highway when it's 100°F here in Nashville. In the mornings ...
0 votes
1 answer
53 views

Mini Cooper R56

After changing the compressor, the compressor no function, I have refuel the refrigerant R134a into the system, but the compressor coil is not working which mean there is Currant to the compressor ...
0 votes
2 answers
59k views

White smoke coming out of vents

Yesterday I was driving my 97 Accord down the highway with the air conditioning turned on. It started raining heavily for a little over 5 minutes, and then the rain stopped. Suddenly, what appeared ...
3 votes
2 answers
186 views

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....
1 vote
1 answer
365 views

Freon leak around dryer -Honda Accord 2000 SE

after I turned A/C, engine room started smoking and it turned out it's coming from the leak around the receiver/dryer of A/C. There are two pipes to it. unsure which is high or low but I tried to ...
5 votes
1 answer
10k views

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 ...
1 vote
1 answer
186 views

Ford Ranger 2008 AC works only on recycled air. Help?

I noticed my Ford Ranger was only blowing hot air when set to bring in outside air, regardless of the temperature outside or what my climate control is set to. I noticed (by accident) that if I turn ...
3 votes
1 answer
289 views

2020 VW Jetta SEL air distribution map

the issue I have is that my ac on my 2 right dash vents emit hot air when I have it on low, but my 2 left dash vents come out cool. Could something be blocked? I changed air filters and everything
0 votes
1 answer
34 views

Receiver drier gasket doesn't seal for 1995 Dodge Ram 3500 Van

My vehicle is a 1995 Dodge Ram Van 3500 with a 5.9L V8. It uses a receiver drier like this one: https://www.oreillyauto.com/detail/c/murray-climate-control/air-conditioning---heating/accumulator-...
6 votes
3 answers
1k views

'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 ...
0 votes
0 answers
71 views

Car Jerks when AC compressor turns on

I have a manual patrol car with a very small engine (800cc). It was a used car when I bought it and this issue was there from the day 1 I bought. I thought the issue maybe due to the small engine but ...
2 votes
3 answers
355 views

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 ...
0 votes
1 answer
141 views

I have a 2012 dodge journey and the a/c has to always be on and I wrecked the a/c condenser and radiator what do I need to refill for the a/c to work

I'm trying to fix my 2012 dodge journey I hit a boar and dented the radiator, the radiator fan, and a/c condenser all of the fluids drained out on the count of the crash and I'm trying to fix the a/c ...
0 votes
1 answer
410 views

2020 Altima compressor Doesn’t Engage [B20C7-15]

I have A 2020 Altima Platinum, the compressor is not working, went to the workshop, gas is okay, compressor is fine, but they told me to change the IPDM, changed it “with the same code” the compressor ...
1 vote
1 answer
617 views

2005 Silverado AC Diagnosis

I just bought a 2005 Silverado with 160k miles and I am trying to diagnose the AC system. Most of the time the compressor never kicks on and so it blows warm air. Occasionally the compressor does kick ...
2 votes
2 answers
3k views

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 ...
1 vote
2 answers
15k views

How to fix air-conditioning in 2008 Honda CRV

I have a 2008 CRV and recently the air conditioning stopped working I have already tried replacing the relay thinking that might’ve been it when I turn the air-conditioning on I can hear something ...
2 votes
1 answer
1k views

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 ...
1 vote
0 answers
31 views

AC car pipe freezes after ~20min turned on

My AC stops cooling after ~20 minutes of work. I open the hood and I see this: It completely freezes. The AC works great while it does. What could be the problem? Thanks
4 votes
1 answer
2k views

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....
0 votes
2 answers
81 views

A/C malfunction

What could cause the pipe out the compressor of the car to be too hot, I mean too hot to be touched with a bay hand, while the pipe after the condenser is slightly warm or rather normal.Then I noticed ...
0 votes
1 answer
28 views

2016 Traverse-OBDII readiness check

My air conditioner does not come on because I have a pin hole in the rear line. Will this affect performing a cycle to get the sensors to read
1 vote
1 answer
158 views

AC compressor replacement

I replaced my AC compressor and wanted to know if I can run it without haveing the AC on.........I replaced the AC compressor myself and need to take it to get vacuumed. I wanna know if I can drive it,...
0 votes
0 answers
18 views

CAN bus PIDs for SEAT

I have a project in my university. I'm trying to recognize the driver using the data from the car. I'm using Raspberry Pi with PiCAN (CAN Bus). car: SEAT Ibiza 2017 I'm looking for more PIDs (not the ...
1 vote
1 answer
280 views

2011 Ford F-150 Lariat A/C problem

A/C problems. Won’t come on sometimes only when I hit a bump. Could something be loose?
0 votes
1 answer
101 views

AC clutch plate on and off

My ac was not working so I installed a new ac pulley, clutch plate, and coil. Now it seems to be working fine again. I notice, however, that the clutch plate engages and disengages fairly regularly (...
1 vote
1 answer
199 views

Normal AC refrigerant pressure range?

Long story short: the ac of my 2013 Rogue is not working and I am in the process of eliminating various possibilities. One of these is the amount of refrigerant in the system. Hence my question: With ...
0 votes
1 answer
68 views

A/c gauge temp doing weird. Sky coupe gt 350

I have a gt350 coupe and I know when I am parked with the a/c on it will overheat in an hour, so I need to turn a/c off. But this time while driving the temperature gauge started going down, not ...
0 votes
0 answers
17 views

ac both sides have high pressure

04 dodge ram 1500. High side goes to 390 and pressure switch cuts off compressor. Low side comes up to 65 until compreesor shuts down. Cools while driving fairly we'll. Begins blowing hot when stopped ...
2 votes
1 answer
858 views

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 ...
0 votes
3 answers
11k views

2015 Nissan sentra- a/c only blows cold at highway speeds

I have a 2015 nissan sentra. When i first got it in 2015 it had one of the best ac systems i had ever had the pleasure of using, like too cold in 105 degree heat on the minimum setting. Then after ...
1 vote
1 answer
45 views

No AC/Ventilation out of nowhere

I have a Peugeot 208 1.2 Puretech 82hp, after sitting parked for a few days, the AC just stopped functioning and gives no air at all through the vents. It's an automatic AC, the display and buttons ...
0 votes
1 answer
722 views

Dash AC does not blow e350

I have a Ford e350 van that does not blow out the dash vents but bows in the rear. The AC compressor is engaged. If I have the rear AC off and the front on (not blowing of course), I can get it to ...
0 votes
2 answers
152 views

AC quits after ~15 mins

I have a 2007 Honda CRV and after about 15 mins the AC will stop working. Before the AC will start to work again, the care must be turned off for a few hours. Took it to a car shop to have it looked ...
1 vote
2 answers
147 views

when is a/c pressure too low

Last fall I noticed a small hiss when starting the a/c. I looked around the system and noticed a thin film of oil/dirt around the high valve. I guessed my high pressure shraeder valve to be leaking ...
3 votes
2 answers
1k views

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: ...
0 votes
1 answer
2k views

Why does my car AC vents blow hot air when AC is switched off?

I bought a new car in the month of April 2019 but from the past few weeks, I have been experiencing very very hot air coming from all the vents. The temperature is high to an extent wherein it ...
0 votes
1 answer
87 views

Strange rattling/ticking noise at 90-120+kmh

I have a 2008 Chevrolet Caprice similar to the Holden caprice and also the G8 and also the PPV ect. There’s a ticking/rattle noise from the car when the car reaches a speed of 100+kmh. If I’m sitting ...

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