Questions tagged [ac]

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

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Two A/C clutch diodes?

'07 Cobalt. A/C clutch fuse was blown. The clutch circuit now reads open to ground, so it seems something catastrophic happened. I am considering what a repair would involve. The schematic (below) ...
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2017 Kia Sorento Dual Climate - how is it suppose to work

When I start my AC on low for both sides, air is blowing cold as expected. When I turn driver side up to say 72 degrees, it seems like the passenger side gets a little warmer but I don't think 72 ...
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My car A/C lost all of its refrigerant

My car lost all of its refrigerant. I went to mechanic he checked my entire ac system for leakage but couldn't find any. He pressurized the cooling coil and also compressor but he couldn't find any ...
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6 votes
2 answers
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Vehicle AC works initially, but after driving for a while (hour+), the airflow drops to the point being ineffective

I have a 2004 Ford Excursion with the 6.0 powerstroke. Most the time, the AC works fine, but after a long drive in hot weather, the front AC barely blows out of the vents. The rear works fine, in fact,...
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My kid dropped my cigarette lighter inside the car AC window

My kid dropped the cigarette lighter inside the car AC window. It's a 2006 Ford Fiesta. Is it okay to drive? Or do I need to immediately take it to the garage?
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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 ...
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125 views

No cold air - AC Compressor clutch engage with LP side 0 psi

No cold air AC Compressor clutch is engaged Low pressure is "0" tried to add Freon and immediately jumps to 150 psi relieve pressure and again immediately back to 0 with clutch still engaged ...
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3 votes
2 answers
186 views

Ac low pressure side is high and high pressure side is low

Last year the car started to blow the air a little warmer. I went to Walmart picked up one of those cans with the little gauges on it. The gauge said I was low so I filled it up. I had ice cold AC ...
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7 votes
2 answers
419 views

Will running engine after replacing A/C components ruin the new compressor before system is recharged with freon/oil?

I have replaced the air compressor (which came oiled from factory), condenser, evaporator, and expansion valve on a 2002 Honda CRV. I also replaced the alternator. I want to turn the engine on to ...
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4 votes
1 answer
42 views

Troubleshooting and diagnosing a car ac system

I have a 2014 Lexus RX350 that doesn't blow cold air. The clutch never tries to engage on the compressor and the condenser fan never runs. Static pressure was about 100 psi (the garage was 85' f) on ...
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2 votes
0 answers
19 views

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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Is my car ac condenser clogged?

I hosed down the condenser in my car today to see if it improves my ac What I realized is that the water didn't dry on some certain spots like the rest of the condenser. The top and the sides were ...
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A/C Fan Does Not Turn Occasionally on 2018 Jeep Grand Cherokee

Every once and awhile my A/C fans don't turn on in my Jeep. I'll turn off the A/C and turn it back on, adjust fan speed, and they still don't turn on. I'll turn off the car and turn it back on with no ...
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3 votes
1 answer
96 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: ...
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2 votes
2 answers
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After Change Evaporator had hissing sound from AC vent

I have Mitsubishi Outlander 2016, I have cooling complaint So, I took to garage the technician checked and said there is leakage in evaporator have to change. After changed the evaporator while AC on ...
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Clicking sound on left side of dash possibly related to AC

So I got a new car some weeks ago. It's a Renault/Dacia Duster 2021. During the past week I took it on a long trip and reached the first 1000 km. During that trip I started noticing a clicking sound ...
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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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2 answers
71 views

A/C compressor and crank pulley bolt

I have heard something from some mechanics but don't know if it is true or false. They say when you are driving on the highway and your A/C is on, the compressor keeps kicking in and out which puts a ...
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1 vote
1 answer
27 views

Where is the cabin air recirc intake?

Background: I am trying to remove a slight smoke smell from a 2014 Buick LaCrosse. I am taking several steps to get the smell out. This question is really only focused on one of those steps. Here is ...
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1 answer
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2001 Malibu air conditioner won't stay on

When I turn on the AC, I can see the compressor clutch engage, blower motor is running, no cool air. I also noticed about every 5 seconds a light 'clunk' from the area of the compressor. After about ...
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1 answer
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'04 Ford Escape A/C is blowing ice cold air while driving but not idling

I own a 2004 Ford Escape V6 2wd, that has good R-134 refrigerate levels, blows ice cold air while driving or when A/C has been turned on while idling (ex. Like sitting in a parking lot) but once it's ...
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1 vote
1 answer
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DTC B1227 - An open in outside temperature sensor circuit - AC not working

I have Acura RDX 2007 and the AC does not work. I took it to dealership/mechanics and they saw that the outside air temp sensor somehow banged condenser and had to replace the condenser. The ...
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1 vote
2 answers
115 views

Will my car A/C cool better if my car's turbocharger is working (above 2500 rm)

Title is self explanatory. I do not know how the car air conditioners or turbochargers really work and affect the power required to be produced by the engine. Can you all help me with it ? Thanks in ...
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2 votes
3 answers
80 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 ...
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05 GMC Sierra 1500 blows hot on both sides

Have 05 GMC Sierra 1500...started out it was blowing hot air on driver's side, cold on passenger. If has dual climate control. Recalibrated the system. Still doing it. Has freon. Checked actuator ...
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Low pressure port on AC system read too high; compressor won't come on

my AC on a 2000 Nissan frontier has excessive pressure on the low pressure side . The compressor is also not coming on. Is there a high pressure switch that comes on the cuts power to the compressor ...
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1 vote
0 answers
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2009 Pontiac Vibe 1.8l 2ZR-FE stalling when turning on AC on full

Hello Folks…hope you can help. My daughters Pontiac Vibe stalls when in drive or reverse when the AC is on max. In park it is fine. Parts that have been replaced recently: Rad and fan, coils and plugs,...
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46 views

AC not working on a 2005 Chevy Sonic

I took my 2015 Chevy Sonic to the dealer because my air conditioner wasn't working. I've had a million problems with this car but it's been under warranty till now. Theyve even replaced the motor. Or ...
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2 votes
0 answers
55 views

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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1 vote
2 answers
161 views

Is there a standard for how much oil should be added after replacing the high-pressure hose and accumulator/drier?

The high-pressure AC hose on my 2003 Subaru WRX has developed a leak, and I need to replace it. I also plan to replace the accumulator/drier at the same time. It appears almost no oil was lost from ...
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Automotive AC Diagnosis Chart / Resources

Has anyone found a good automotive AC diagnosis chart? I can find some suggesting pressure ranges, and even temperature and pressure ranges, but I cannot find a good source which also includes ...
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1 vote
1 answer
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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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1 vote
0 answers
26 views

Cabin fan stops working after car is parked in sun

I have a W204 Mercedes where the cabin fan (fan for heater, and aircon) recently started to not work in specific situations. In the morning when engine and everything are cold, the fan blows fine, at ...
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2 votes
1 answer
132 views

2002 Ford Escape: Flushed system, new compressor, topped off with oil and coolant, still not blowing cold air

It kind of worked last year but barely. Yesterday I flushed the system by Flushing AC cleaning solvent from the high end out the low end. I did not disconnect the hose but instead pushed the pin in ...
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0 votes
1 answer
26 views

A/C is not blowing thru front vents

Recently had battery changed....I recalibrated the HVAC but that did not work. There is a possibility that I pushed an A/C button before the calibration was complete. Could this cause the front ...
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0 votes
1 answer
54 views

Car stalls when ac compresser is plugged in

I have a 2002 buick century with a 3.1 the car stalls while driving when the ac compressor is plugged in but when I unplug it the car runs fine can anyone tell me why it would do that.
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1 answer
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Is this a non-puncturing refrigerant can?

I finished the job that inspired this question so that others might not have the same trouble, and Jupiter's comment on my answer got me to thinking, "Am I using the can wrong?" The only ...
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0 answers
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My car AC only works at night

My 2004 Dodge Stratus’ AC only works at night when it’s cool. It can do both heating and cooling at night but in the day, it won’t push air at all. When it does turn on, it only works on the 2 highest ...
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1 vote
0 answers
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Honda Accord losing coolant if aircon is turned on

I have a 2007 Honda Accord Euro all of a sudden now loses coolant whenever I use the aircon. When I drive with the aircon off, the level remains fixed but soon as I drive 20min with ac I realise the ...
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  • 111
1 vote
0 answers
51 views

Replacing leaking AC condenser and reciever dryer after 6 years of no refrigerant at all. Do I replace all PAG oil?

I'm in a unique enough situation that I don't think I can trust my research completely. My AC condenser in my 2000 Corolla was dented 6 years ago and consequently all the refrigerant leaked out slowly....
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0 votes
1 answer
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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 ...
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4 votes
3 answers
993 views

How do race drivers clear foggy windscreens?

I know that, in order to decrease weight, race cars may remove AC and heating systems as these are not essential. However, when driving, if their windows get foggy due to cold weather, how do they ...
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0 votes
0 answers
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Bad smell from AC

My 2009 Honda Fit was parked for a few months this year. Now when I use the AC, there is a bad smell. It doesn't smell like any mold that I've smelled before (although I know molds can have many ...
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1 vote
0 answers
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GMC Envoy stalls when air conditioner is on and idling

2004 Envoy only dies when A/C is on and idling if it is in park or neutral no problem. Also will not crank after fueling once started will continue to turn over till refueling again. And service ...
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0 votes
3 answers
520 views

Tail pipe rattles when AC is on

I have noticed a distinct rattling sound coming from my tail pipe when I am parked and idling. After some experimenting I realized it only happens when the AC is on. If I turn the AC off it ...
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  • 341
1 vote
1 answer
172 views

Is AC refrigerant toxic?

I’m looking to buy a small portable refrigerator to take with me on camping trips, and I’ve found one that is designed to plug into automotive power systems and can (presumably) handle the vibrations ...
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0 votes
1 answer
71 views

Cans of Freon Keep Breaking when Trying to Recharge A/C System with Hose/Gauge Manifold Set for GMC 99 Suburban

I'm trying to recharge my A/C system with a hose/gauge manifold (the red, yellow, blue hoses) after pumping out all the pressure in the system. The problem I have is when I attach a can of freon on to ...
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0 votes
0 answers
25 views

2018 Sonata - When my a/c is on it blows out sudden burst of cold air for a few seconds then back to normal

I have a 2018 Sonata that when the A/C is on it has started blowing out sudden bursts of cold air. This only last for a few seconds then it goes back to normal. It will wait maybe a minute or two ...
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2 votes
0 answers
228 views

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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0 votes
1 answer
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Engine vibration when A/C is on

I have a Toyota IQ 2010 model. I bought this car second hand having driven 50,000 KM. When I bought the car it had power and acceleration issues, it wouldn't even climb a small ramp. Other problems ...
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