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Questions tagged [ac]

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

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Mechanical checklist before roadtrip

I'm planing to make a 4 day long road trip throughout Europe beginning in Scandinavia all the way down to Spain in the middle of summer and need some car advice. I've driven around with a small ...
Aden's user avatar
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1 answer
33 views

2000 Buick V6 want to remove the air conditioner

I want to remove the exterior air conditioner parts from the motor because it’s in a convertible (compressor/radiator/hoses). Do I need seal the hose or anything else to worry with ?
Butch's user avatar
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1 answer
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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
PPij's user avatar
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2 votes
1 answer
64 views

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 ...
dlu's user avatar
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1 vote
2 answers
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Does my refrigerant recovery machine have a leak if the vacuum is lost over several hours?

I'm attempting to do some DIY car repairs from my driveway, and need to remove the vehicle's AC condenser. To do so, I need to evacuate the r134a refrigerant from the AC system. Apparently it is the ...
example6's user avatar
1 vote
1 answer
59 views

Clutchless AC compressor ( ECVDC ) driving with no gas?

These externally controlled variable displacement compressor's dont have a clutch and the internals are apparently always moving. Whats to stop (does) it just damaging/destroying itself if the system ...
Hayden Thring's user avatar
1 vote
1 answer
50 views

Does running the engine without using air conditioner significantly influence battery life?

Is there a tangible benefit to never using the air conditioner and will doing so increase overall battery life ?
fishbed's user avatar
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1 vote
2 answers
47 views

What is this thing here the AC is not working because of it?

I bought a Hummer 2 limo 2009. The AC stopped working and they traced that it's this thing that got burnt. We checked our local spare parts dealers and they don't know what it is, there is no writeup ...
Hither Joe's user avatar
0 votes
0 answers
55 views

A/C not cold on highway

Ac not blowing cold when driving on highway. 2006 scion XA with a fresh r134a recharge. Ac blows cold idling and around town, but when driving on highway (>50mph) ac blows totally warm. Cools down ...
John's user avatar
  • 101
2 votes
1 answer
65 views

What's going on with the "temperature" part of this pressure gauge?

Ok, I think I finally understand the pressure bit of this gauge that came with this set of poorly documented hoses I got off Amazon. From 0 to 350, it's actually measuring pounds per square inch (PSI)....
lly's user avatar
  • 125
1 vote
2 answers
60 views

How to diagnose AC blowing warm air

I've got a 2007 Hyundai Elantra that's got a mostly-functional AC, but consistently blows warm air when at lower speeds (or idle) on warm days. So far, I've tested the following: I press the A/C ...
richyen's user avatar
  • 111
1 vote
1 answer
151 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. ...
Jeff Garnick's user avatar
1 vote
2 answers
405 views

What belt can you use to bypass the ac compressor on a 2003 Honda accord 3.5 6cyl

Not sure if there's even an option. I can't find a bypass pully for it. The way the 03 is set up not sure if there's a way to run a smaller belt.
user73267's user avatar
0 votes
0 answers
11 views

Ford A/C issues

2007 Ford Explorer Limited. When I run the A/C cold air comes out on drivers side but it comes out on the passengers side. Please help.
Eric James Hall's user avatar
0 votes
1 answer
71 views

What else could I do to fix R134a AC Valve?

My 2013 Hyundai Tucson had been leaking refrigerant and lasted only few days. I put in the dye, UVed it to find refrigerant all over the low service valve. After replacing valve core, the refrigerant ...
10101010's user avatar
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0 answers
21 views

2008 ford explorer ac fast cycles

I have a 2008 ford explorer Eddie baur edition 4.0, the ac works awesome for about 20 to 30 minutes, then t will start rapid cycling, new compressor, new accumulator, new orifice tube, full charge, ...
Anthony Sager's user avatar
1 vote
1 answer
166 views

Help to diagnose A/C failure? Ford Tourneo with Forscan OBD

The A/C in my car doesn't work, before any repair, I try to understand which part in the A/C system is the problem. Here the symptoms: Everything looks fine: no error message, the interior ...
Aurelien's user avatar
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0 answers
16 views

2014 Tucson ac fan wont go to high

Thanks in advance. My 2014 Tucson ac fan will. Not shift in high mode. I replaced the fan which had a new resistor. I have switched the 30 amp relay still no help. Any help? Thanks
Mark Billman.'s user avatar
0 votes
2 answers
116 views

Can I turn on the A/C Unit in a car using the OBD-II Port while it is off?

I want to know if it is possible to turn on the A/C unit using the OBD-II port in a car even if the engine/car is off. Is the OBD-II port capable of doing something like this, or is it only used to ...
Bob's user avatar
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4 votes
1 answer
525 views

Idling motor and running AC for 4-8 hours in 100 degree heat?

Ok so I go to a lot of music festivals in the summer, stay up all night, then try to sleep during the day. A buddy swears by just idling his van engine and blasting the AC, like for 4-8 hours when it ...
Mohamed Hafez's user avatar
1 vote
0 answers
24 views

Is an F-Gas certificate required to operate an automatic Aircon charging machine? (UK)

In the UK is it required by law for an operator in for example a local garage, to hold an "F-Gas" certificate in order to operate a fully automatic air conditioning refrigerant refilling ...
Digital Lightcraft's user avatar
1 vote
1 answer
82 views

Corolla RPM moving down (shakes) when AC on

I have 2018 Corolla XSE at 55000 miles. I recently started driving long range on highways and using the AC constantly. I noticed that when I come to red light/stop, RPM Lowers down than normal, and ...
user17087357's user avatar
0 votes
0 answers
64 views

Mazda 3 2015 ac not working

My Mazda 3 2015 ac is blowing hot air and my radiator fans aren’t turning on. What could be the issue?
Brianna's user avatar
2 votes
1 answer
202 views

No air coming from footwell vents. VW Passat

I'm facing a problem where no matter what button I press I can't get any air to go to the floor vents. Whenever I press the according button air starts coming from the middle vents that's above the ...
Roland's user avatar
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0 answers
24 views

Ac compressor or bad hoses

Ac stopped blowing cold air, I was told we needed a new ac compressor. We got it replaced and now it's leaking bright green fluid. Took it back to the dealer they now said its coincidental that the ...
user72793's user avatar
0 votes
0 answers
40 views

Why would a clutchless A/C compressor cause the output air to cycle between cold and warm?

2010 VW Jetta, 110k miles or so. I recently had my A/C system looked at. It cycles between cold and warm air when running under normal conditions (and by "warm", I mean the same temperature ...
NeutronStar's user avatar
0 votes
0 answers
64 views

Skoda Fabia AC not cooling after 35-40 minutes

My 2008 Petrol skoda fabia does not cool after 35-40 minutes. The Ac blows out air but it's not cool. Last year I had changed the compressor and condenser and the problem started since then. Earlier ...
Zaid's user avatar
  • 1
1 vote
1 answer
49 views

Advice before recharging car's AC with DIY kit and additives

Following a very costly surgery, I'd love to save several hundred bucks with a DIY kit for the car's AC system. A recent shop diagnostic discharged the line and also determined a leak near the high ...
Fig Newton's user avatar
0 votes
1 answer
40 views

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) ...
George's user avatar
  • 1,103
1 vote
1 answer
65 views

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 ...
Rod's user avatar
  • 121
1 vote
1 answer
275 views

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 ...
Muhammad Ashar's user avatar
6 votes
2 answers
2k views

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,...
Alex Estrada's user avatar
0 votes
0 answers
114 views

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?
Siddharth Rajaasokan's user avatar
0 votes
1 answer
59 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 ...
alexander melendez's user avatar
0 votes
1 answer
678 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 ...
G Stan's user avatar
  • 1
3 votes
2 answers
6k 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 ...
RobNav's user avatar
  • 133
7 votes
2 answers
514 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 ...
EthanT's user avatar
  • 71
4 votes
1 answer
77 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 ...
Nick Collins's user avatar
2 votes
0 answers
20 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 ...
Jeff's user avatar
  • 51
1 vote
1 answer
225 views

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 ...
charlie's user avatar
  • 11
0 votes
1 answer
292 views

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 ...
Kirk Ouimet's user avatar
3 votes
2 answers
450 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: ...
tgun926's user avatar
  • 1,093
2 votes
2 answers
466 views

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 ...
Anwar Noorullah's user avatar
0 votes
1 answer
60 views

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 ...
Zerjack's user avatar
  • 101
0 votes
1 answer
45 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 ...
Ather Zuberi's user avatar
0 votes
2 answers
142 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 ...
Nariman Asgharian's user avatar
1 vote
1 answer
53 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 ...
Stainsor's user avatar
  • 339
0 votes
1 answer
39 views

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 ...
asp316's user avatar
  • 211
0 votes
1 answer
150 views

'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 ...
Chase's user avatar
  • 1
1 vote
1 answer
237 views

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 ...
Joseph Phronesis's user avatar

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