My Acadia sometimes turns on a works great & sometimes I get that BS blinking yellow light that just blinks. I've had it filled up with freon at the dealership & it works good for a while & then it'll start blinking. WTH can it be ? Why can't they fix this dang thing
I have an issue where the AC is blowing cold and the AC light starts to blink so it begins to throw hot air. I just had my water pump replaced and don’t know if that has something to do with it because it was my AC was working just fine. Do you think they’re replacing my water pump has anything to do with the AC blowing out hot air?
I have the 5 blinks also. However, the ac system works great until it doesnt. I dont feel that i have a leak. It happens after driving a little while. I wouldn't have cold air at all if it was a leak. Can the ptessure switches be changed without evacuating on these?
Not sure on an Acadia but have done GM pressure switches before and they will have a schrader valve underneath. I would have the HVAC module scanned to see what codes are stored. The ambient air temp sensor or evap temp sensor could also have an intermittent problem.
I turned the key to the 2nd turn in ignition and i pressed the ac and it blinked 3 times. as soon as i seen it blink, i searched it up and came across your video. But before watching it, i simply turned my truck on and the ac worked. Im confused lol should i get it checked?
So the engine wasn't on when you pressed the button? If that's the case, I suspect the flashing is the logic programmed into the hvac module and supposed to do it. If it doesn't flash with the engine running and the a/c works then roll with it. 🙂
Tell me you did pump the system down before you charged it, right? The video went straight from pressure testing with compressed air to adding refrigerant. Just want to make sure any rookies or DIYers understand the importance of boiling any water out of the system. Especially important it the system was left open for a while or if your compressed air system has water in it.
I can't say for certain but it hasn't come back. Carefully inspect all the lines, condenser plus front and rear evaporator drains for oily spots. If nothing is found then you will need a leak detector to sniff the evap drains to see if refrigerant is detected. It's very possible one of the evaporators is leaking.
You know, I can't find information on that either. Need to have it scanned to see what codes are in the climate control module. I bet it has at least one.
Pretty sure it's the same troubleshooting. The video actually shows 6 blinks if you look carefully. Maybe he didn't count the initial light as a blink. My '13 Enclave is doing it, too.
Having this issue with my 2015 arcadia. And I live in a hot state so they price gouge me😭 can I just buy some coolant/ refrigerant what ever it's called at the auto parts store?
Sure, if they still sell it in auto parts stores. You need to look at your underhood label to see what refrigerant it takes. R134A or R1234 The only thing you will not know is how much refrigerant is in your vehicle without connecting it to a machine to recover and measure.
I have a GMC It blinks three times had the compressor changed three times an the refrigerant filled each time an the AC still cuts off after blinking three times.
Make sure you check these:The A/C light is designed to flash and disallow A/C operation if any of the following conditions are present: Ambient air temperature (AAT) is too cold (35 degrees or colder) Vehicle system voltage is less than 9.5 volts Refrigerant pressure is too low Refrigerant pressure is too high Engine coolant temperature (ECT) is too high Engine is not in RUN HVAC Control Head is in the OFF position
Yea, when high pressure meets the threshold. On cool days the fans may not come on for a while after the a/c button is pressed. On hot days the discharge pressure will be much higher and fans will come on almost immediately.
Mine started overheating today and at times it does this i don’t know! No leaks both hoses are hot . I checked fluid level on resivoir and radiator all good… at parked it’s good at 210 I drove it for lk 10 min and it goes up above 210 like a line or two… what do you think it is ?
If all the fluid levels are full, make sure both cooling fans come on when it starts overheating. If the fan come on then make sure the air being pulled is warm. If it feels cool then you most likely have a bad thermostat. If all that checks out fine then take it in for a "block test". This test checks for hydrocarbons in the cooling system. If it fails the block test then that means the head gaskets are leaking.
I had this problem, took me a year to solve. Finally a mechanic simply cleaned out a whole bunch of debris from between the condenser and the radiator. This was after replacing the water pump and "radiator cap" twice, the thermostat, and flushing the radiator (all performed by the dealer). I also took off the bumper cover and *gently* cleaned the condenser. Hope that saves you some time and aggravation!
My 2014 Acadia compressor let out the nasty black magic smoke last month and I got the compressor replaced. Now, the ac works for about 10 minutes then the recirculation light turns on and ac light stays on but ac stops working and dumps all the Florida humidity into the cabin air. When I press the recirculation button, it flashes 3 times and stays lit. When I turn off and on the engine, the ac works again most of the time if I let it stay off for about 30 seconds before turning it on again. Have you seen this issue before? Thanks.
@@raincitywrench117 Update: The ECT sensor was occasionally faulty. I replaced it a month ago, and my issue has not re-appeared! 🙂 Also, my 2012 Terrain started to smell "a little off," so I took a look into the air filter box yesterday. I found a dead mid-life opossum in there! I removed the blower fan, pushed the opossum down, and yanked it out. I'll certainly disinfect the filter box and evaporator coils with a foaming cleaning spray next.
@@Mark-vk5lx Thanks for the update. Yuck! I pulled a mouse wedged into the evaporator core once. Have seen where you can disinfect the heater system by rolling down the windows, turning the heater on and then spraying a can of Lysol into the air intake which is usually the passenger side cowl area and then letting it air out.
Wow, I appreciate your video! I have a 2011 Buick Enclave and my AC button goes off and on and blinks. When i'm stopped like at red lights or when I first start it. I have a brand new battery. Battery guage also fluctuates. Could it be a bad alternator?
Definitely. I would have the charging system tested. Easy check with the proper tester. It will test alternator output and ripple. If excessive ripple is detected it can cause all sorts of electrical malfunctions and drastically shorten battery life.
@@raincitywrench117 Thank you so much for your reply!! I had the alternator changed this morning and battery guage is good but the ac little snow button is still coming off and on when I first start it and when I stop. So do I still need to have the charging system tested? Thank you so much I very much appreciate your time!
It's getting worse. Everything on the new vehicles is run by a module of some sort with most of the modules wired into the same network. Had a brand new 22 F150 that lost the entire infotainment system on his way home after buying. The screen just went blank. The APIM module failed. It's behind the lower center of dash so we had the seats out to gain access. Turns out it won't start if you leave one of the seat connectors out.
@@raincitywrench117 Wow! My 2017 Acadia lost all front Air vents and A/C after a battery change. The middle of the infotainment screen in nonresponsive too. I swear if a company started making the equivalent of a 1980 Toyota truck or something, I'd buy one in a heartbeat!
@@raincitywrench117ok yes it was the high pressure switch. I thought the blinking was 3 times. Replaced it, now the compressor is cycling on and off . Maybe has too much refrigerant
@@La2venida The expansion valve can fail leading to extremely high pressure on discharge side with low pressure on the suction side. Sounds like your situation was bad high pressure switch
My Acadia sometimes turns on a works great & sometimes I get that BS blinking yellow light that just blinks. I've had it filled up with freon at the dealership & it works good for a while & then it'll start blinking. WTH can it be ? Why can't they fix this dang thing
I’m having this issue :( 2013 Acadia as well, thanks for the video! Need to fix it haha
Mine is also blinking is there a reference I can find to see the different codes for the different number of blinks
I have an issue where the AC is blowing cold and the AC light starts to blink so it begins to throw hot air. I just had my water pump replaced and don’t know if that has something to do with it because it was my AC was working just fine.
Do you think they’re replacing my water pump has anything to do with the AC blowing out hot air?
I have the 5 blinks also. However, the ac system works great until it doesnt. I dont feel that i have a leak. It happens after driving a little while. I wouldn't have cold air at all if it was a leak. Can the ptessure switches be changed without evacuating on these?
Not sure on an Acadia but have done GM pressure switches before and they will have a schrader valve underneath. I would have the HVAC module scanned to see what codes are stored. The ambient air temp sensor or evap temp sensor could also have an intermittent problem.
I have a 2014 gmc acadia rear doesn't blow at all I have noticed the blinks but I want to say it was only twice however there is no cold air at all,
Ive swapped my fuses nothing
I turned the key to the 2nd turn in ignition and i pressed the ac and it blinked 3 times. as soon as i seen it blink, i searched it up and came across your video. But before watching it, i simply turned my truck on and the ac worked. Im confused lol should i get it checked?
So the engine wasn't on when you pressed the button? If that's the case, I suspect the flashing is the logic programmed into the hvac module and supposed to do it. If it doesn't flash with the engine running and the a/c works then roll with it. 🙂
Tell me you did pump the system down before you charged it, right? The video went straight from pressure testing with compressed air to adding refrigerant. Just want to make sure any rookies or DIYers understand the importance of boiling any water out of the system. Especially important it the system was left open for a while or if your compressed air system has water in it.
Nice catch. Should have put that in the video. I ran vacuum on it for 1/2 hour before charging 🙂
Do you have a special fitting for pumping the air and also is the air compressed air that you're adding there to 70 PSI
Ours blinks 5 times also, charged it like you did and it only lasted less than a week. Curious if that car held that charge.
I can't say for certain but it hasn't come back. Carefully inspect all the lines, condenser plus front and rear evaporator drains for oily spots. If nothing is found then you will need a leak detector to sniff the evap drains to see if refrigerant is detected. It's very possible one of the evaporators is leaking.
So if it's blinking five times that means it's low on coolant / freon?
Yes, or a bad pressure switch. Most likely your refrigerant is low.
Mine blinks 3 times but my compressor not coming on please help
Simple fix
§لا إله إلا الله وحده لا شريك له ، له الملك وله الحمد وهو على كل شيء قدير§
§اللهم صل وسلم وبارك على نبينا محمد ، وعلى آله وصحبه أجمعين§
I have a '14 gmc acadia and the light blinks 6 times. I can't find any info about why is doing that.
You know, I can't find information on that either. Need to have it scanned to see what codes are in the climate control module. I bet it has at least one.
Pretty sure it's the same troubleshooting. The video actually shows 6 blinks if you look carefully. Maybe he didn't count the initial light as a blink. My '13 Enclave is doing it, too.
What kind of scanner is needed to do that? @@raincitywrench117
Having this issue with my 2015 arcadia. And I live in a hot state so they price gouge me😭 can I just buy some coolant/ refrigerant what ever it's called at the auto parts store?
Sure, if they still sell it in auto parts stores. You need to look at your underhood label to see what refrigerant it takes. R134A or R1234
The only thing you will not know is how much refrigerant is in your vehicle without connecting it to a machine to recover and measure.
@@raincitywrench117 I got the coolant and my air conditioning started working immediately. ❤️ Only cost $17
They will also do that if the system is over charged
Good to know👍
Also when clutch magnetic 🧲 quael is faulty or blown
I have a GMC It blinks three times had the compressor changed three times an the refrigerant filled each time an the AC still cuts off after blinking three times.
Make sure you check these:The A/C light is designed to flash and disallow A/C operation if any of the following conditions are present:
Ambient air temperature (AAT) is too cold (35 degrees or colder)
Vehicle system voltage is less than 9.5 volts
Refrigerant pressure is too low
Refrigerant pressure is too high
Engine coolant temperature (ECT) is too high
Engine is not in RUN
HVAC Control Head is in the OFF position
I had the same issue. It had a leak on one line
Thank you
My Saturn Outlook is doing the same thing, I'm going to recharge it and hopefully doesn't have a leak.
Probably low on charge. Make sure you inspect the condenser real good looking for any oily dark spots.
Is cooling fan suppose to be on when ac is on or just when high pressure kicks it on
Yea, when high pressure meets the threshold. On cool days the fans may not come on for a while after the a/c button is pressed. On hot days the discharge pressure will be much higher and fans will come on almost immediately.
Mine started overheating today and at times it does this i don’t know! No leaks both hoses are hot . I checked fluid level on resivoir and radiator all good… at parked it’s good at 210 I drove it for lk 10 min and it goes up above 210 like a line or two… what do you think it is ?
If all the fluid levels are full, make sure both cooling fans come on when it starts overheating. If the fan come on then make sure the air being pulled is warm. If it feels cool then you most likely have a bad thermostat. If all that checks out fine then take it in for a "block test". This test checks for hydrocarbons in the cooling system. If it fails the block test then that means the head gaskets are leaking.
I had this problem, took me a year to solve. Finally a mechanic simply cleaned out a whole bunch of debris from between the condenser and the radiator. This was after replacing the water pump and "radiator cap" twice, the thermostat, and flushing the radiator (all performed by the dealer). I also took off the bumper cover and *gently* cleaned the condenser.
Hope that saves you some time and aggravation!
My 2014 Acadia compressor let out the nasty black magic smoke last month and I got the compressor replaced. Now, the ac works for about 10 minutes then the recirculation light turns on and ac light stays on but ac stops working and dumps all the Florida humidity into the cabin air. When I press the recirculation button, it flashes 3 times and stays lit. When I turn off and on the engine, the ac works again most of the time if I let it stay off for about 30 seconds before turning it on again. Have you seen this issue before? Thanks.
I have not. Need to find someone with a scanner and see if/what codes are stored in the HVAC module before going any further
@@raincitywrench117 Update: The ECT sensor was occasionally faulty. I replaced it a month ago, and my issue has not re-appeared! 🙂
Also, my 2012 Terrain started to smell "a little off," so I took a look into the air filter box yesterday. I found a dead mid-life opossum in there! I removed the blower fan, pushed the opossum down, and yanked it out. I'll certainly disinfect the filter box and evaporator coils with a foaming cleaning spray next.
@@Mark-vk5lx Thanks for the update. Yuck! I pulled a mouse wedged into the evaporator core once. Have seen where you can disinfect the heater system by rolling down the windows, turning the heater on and then spraying a can of Lysol into the air intake which is usually the passenger side cowl area and then letting it air out.
How much does something like this cost to do?
Just a couple hundred bucks
What do u usually charge $ for something like this??
This was a trade in so was billed internal & don't know the cost
Wow, I appreciate your video! I have a 2011 Buick Enclave and my AC button goes off and on and blinks. When i'm stopped like at red lights or when I first start it. I have a brand new battery. Battery guage also fluctuates. Could it be a bad alternator?
Definitely. I would have the charging system tested. Easy check with the proper tester. It will test alternator output and ripple. If excessive ripple is detected it can cause all sorts of electrical malfunctions and drastically shorten battery life.
@@raincitywrench117 Thank you so much for your reply!! I had the alternator changed this morning and battery guage is good but the ac little snow button is still coming off and on when I first start it and when I stop. So do I still need to have the charging system tested? Thank you so much I very much appreciate your time!
@@raincitywrench117 The alternator voltage is variable and fluctuates by design and 'as needed'. This is normal operation.
Is that an OBD reader your using to get that info?
The tool used in this video is an Autel MS908 all in one scanner. Handy little unit indeed.
Honestly, that's BS! If I want my AC to work at 39° then it needs to damn work! Stop manufacturers with all the complicated crap!
It's getting worse. Everything on the new vehicles is run by a module of some sort with most of the modules wired into the same network. Had a brand new 22 F150 that lost the entire infotainment system on his way home after buying. The screen just went blank. The APIM module failed. It's behind the lower center of dash so we had the seats out to gain access. Turns out it won't start if you leave one of the seat connectors out.
@@raincitywrench117 Wow! My 2017 Acadia lost all front Air vents and A/C after a battery change. The middle of the infotainment screen in nonresponsive too. I swear if a company started making the equivalent of a 1980 Toyota truck or something, I'd buy one in a heartbeat!
@@tnwhiskey68 Yep, sounds about right.
I have a 2009 that blinks 2 times what might be the problem
Some will blink twice if the recirculation button is on also. That's all I can think of.
What does it means if it blinks 2 or 3 times
Make sure recirculation button is not pressed. If a/c is inoperative. is sounds like low refrigerant pressure.
@@raincitywrench117ok yes it was the high pressure switch. I thought the blinking was 3 times. Replaced it, now the compressor is cycling on and off . Maybe has too much refrigerant
@@La2venida The expansion valve can fail leading to extremely high pressure on discharge side with low pressure on the suction side. Sounds like your situation was bad high pressure switch
Man where are you located
Snohomish WA
I have a 2009 that blinks 2 times
Not sure what's that's about. Some of these a/c switches will blink a couple times and turn off if the recirculation button is also on.
I have same situation. If I jump the a/c relay compressor comes On
@@La2venida Sounds like low refrigerant pressure which will keep the compressor from turning on.
Where the fk is the AC button to turn it in. It doesn't say AC and if that a snowflake it's a poor example of one.
😂