Questions tagged [ac]

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

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3 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 ...
3Dave's user avatar
  • 3,149
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 ...
mark b's user avatar
  • 51
4 votes
0 answers
97 views

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) ...
Domer Huffman III's user avatar
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....
Ravi's user avatar
  • 41
4 votes
0 answers
111 views

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 ...
Glenn Lane's user avatar
4 votes
0 answers
132 views

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 ...
elliotwhitehead's user avatar
4 votes
0 answers
2k views

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 ...
Ziezi's user avatar
  • 600
3 votes
2 answers
908 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
3 votes
0 answers
1k views

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 ...
3dalliance's user avatar
3 votes
0 answers
38 views

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....
S.secred's user avatar
3 votes
0 answers
496 views

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 ...
Miguel Moreno's user avatar
3 votes
0 answers
64 views

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 ...
Res Ipsa's user avatar
3 votes
0 answers
114 views

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 ...
Fred's user avatar
  • 31
3 votes
0 answers
491 views

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 ...
Jack's user avatar
  • 31
3 votes
0 answers
134 views

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 ...
feetwet's user avatar
  • 1,189
3 votes
0 answers
274 views

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 ...
Bon's user avatar
  • 201
2 votes
0 answers
35 views

Engine RPM continuously rising when using A/C in my Nissan Terrano Diesel

My Nissan Terrano Diesel has this weird problem. Whenever I turn the AC on, after a few minutes, the engine RPM continuously rises at shoots up above 3000RPM apprx at idle. Only when I apply brakes, ...
Barath Iraiyarul'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
2 votes
3 answers
305 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 ...
jpolache's user avatar
  • 121
2 votes
0 answers
99 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 ...
Oz Newcombe's user avatar
2 votes
1 answer
259 views

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 ...
Joel Z.'s user avatar
  • 121
2 votes
0 answers
635 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 ...
Woodro's user avatar
  • 21
2 votes
1 answer
734 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 ...
Lana's user avatar
  • 21
2 votes
0 answers
113 views

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 ...
darune's user avatar
  • 71
2 votes
0 answers
39 views

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 ...
Cullub's user avatar
  • 1,364
2 votes
0 answers
65 views

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 ...
Anthony Zak's user avatar
2 votes
0 answers
231 views

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....
Tin's user avatar
  • 21
2 votes
0 answers
379 views

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 ...
user38925's user avatar
2 votes
0 answers
8k views

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 ...
pulch's user avatar
  • 21
2 votes
2 answers
177 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....
Lance's user avatar
  • 21
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 ...
luba's user avatar
  • 21
2 votes
2 answers
2k 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 ...
Connor's user avatar
  • 21
2 votes
0 answers
974 views

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 ...
jason's user avatar
  • 21
2 votes
0 answers
41 views

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 ...
Jake Cowherd's user avatar
2 votes
0 answers
273 views

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'...
JPhi1618's user avatar
  • 13.3k
2 votes
0 answers
30 views

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 ...
ARUN's user avatar
  • 21
2 votes
0 answers
67 views

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 ...
sloop's user avatar
  • 21
2 votes
0 answers
592 views

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 ...
Jimm14's user avatar
  • 33
2 votes
0 answers
43 views

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 ...
JK2016's user avatar
  • 21
2 votes
0 answers
65 views

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 ...
d welch's user avatar
  • 21
2 votes
0 answers
407 views

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 ...
TRIGGA's user avatar
  • 242
2 votes
0 answers
569 views

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 ...
Irene Chastain's user avatar
2 votes
0 answers
156 views

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 ...
user15529's user avatar
2 votes
0 answers
540 views

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 ...
user11048's user avatar
2 votes
0 answers
5k views

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 ...
dbq's user avatar
  • 133
1 vote
0 answers
61 views

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
Justin Davis's user avatar
1 vote
0 answers
29 views

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, ...
mike.k's user avatar
  • 111
1 vote
1 answer
61 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 ...
bas's user avatar
  • 11
1 vote
0 answers
36 views

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 ...
Lucas Deane's user avatar
1 vote
1 answer
2k 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