P0483 Cooling Fan Problem - Subaru Outback
video description
If you don't mind, I would like to add a very important issue I just had. The ac in my wife's car was blowing warm air with the vehicle stopped, the ac compressor was engaged and running constantly but the compressor itself was very hot, both radiator fans running slow so I thought there was an issue with the high speed fan relay or maybe a pressure switch for the ac refrigerant pressure. I just happened to grab the refrigerant suction line where it comes through the firewall into the engine compartment, and it was warm, very warm. After speeding up the idle, it was still not very cool, so I proceeded to add refrigerant slowly, feeling for cooling to come back though the firewall on the suction line (the larger refrigerant line. Within a minute, the fans revved up to high speed, the refrigerant suction line started getting cool, and the ac cranks now, even at 96 degrees outside. So just keep in mind, there is a pressure switch somewhere for high speed on both fans and most importantly, the ac compressor DID NOT rapidly cycle on/off as many do when the refrigerant charge gets low. I know I should have checked the refrigerant pressures, but my method of checking suction line temp is pretty good too. In my case, just a touch led me in the right direction. I hope this helps.
Date: 2020-08-05
Related videos
Comments and reviews: 9
jose
Question fans got clogged with mud, didnt notice, come summer overheated blown fuses. But now both fans will kick on but fuses get hot and blow could both fans be messes up as far as motors? mecanics here are outrageous. When fans unplugged fuses stay good. Why would they get so hot so fast and blow. I traced wiring all looks good no damages. So just wondering about fan motors thanks i. Advace if u read this 96 Subaru legacy. I did jump a wire to check andwire got hot
reply
Question fans got clogged with mud, didnt notice, come summer overheated blown fuses. But now both fans will kick on but fuses get hot and blow could both fans be messes up as far as motors? mecanics here are outrageous. When fans unplugged fuses stay good. Why would they get so hot so fast and blow. I traced wiring all looks good no damages. So just wondering about fan motors thanks i. Advace if u read this 96 Subaru legacy. I did jump a wire to check andwire got hot
reply
robert
I hope you can point me in the right direction. I went through the steps you show when I jump the relays my fans wont turn on and at one of the fuses the one closest to the fender only power is on one side all the fuses are tested good as well as the ones in the dash I made up power to the fans and they work the relays test good as well I also replaced the temp sensor. any suggestions?
reply
I hope you can point me in the right direction. I went through the steps you show when I jump the relays my fans wont turn on and at one of the fuses the one closest to the fender only power is on one side all the fuses are tested good as well as the ones in the dash I made up power to the fans and they work the relays test good as well I also replaced the temp sensor. any suggestions?
reply
Thomas
I have this code on my 2004 Forester and I cleared it once but it came back three days later. Before I diagnose I have a couple of questions. If I do a systems check under the dash will that rule out faulty relays and harnesses to the fan. Also should I look into the thermostat or engine control temp sensor? Any info would help thanks
reply
I have this code on my 2004 Forester and I cleared it once but it came back three days later. Before I diagnose I have a couple of questions. If I do a systems check under the dash will that rule out faulty relays and harnesses to the fan. Also should I look into the thermostat or engine control temp sensor? Any info would help thanks
reply
Lil
Hi the radiator fans dont come on when the temp gauge reaches halfway the water starts boiling but the temperature gauge stays in the middle I was told it was the coolant/temp sensor so I replaced it so now the fans still not working, anyway when I unplugged the sensor the fans work from start up. So what could be the problem?
reply
Hi the radiator fans dont come on when the temp gauge reaches halfway the water starts boiling but the temperature gauge stays in the middle I was told it was the coolant/temp sensor so I replaced it so now the fans still not working, anyway when I unplugged the sensor the fans work from start up. So what could be the problem?
reply
Dan
I don't have a check engine light and no codes were found. The car was very hot a couple times still no check engine light. Also looked around for evidence of Mr. Mouse. So far I haven't found any damage. Will follow your footsteps here and see where that leads. Where are those other fuses located?
Thanks for the video.
reply
I don't have a check engine light and no codes were found. The car was very hot a couple times still no check engine light. Also looked around for evidence of Mr. Mouse. So far I haven't found any damage. Will follow your footsteps here and see where that leads. Where are those other fuses located?
Thanks for the video.
reply
Miss
this is a good video thank you. hello I have a 2006 Subaru 2. 5i limited outback I recently did a radiator flush on it and now my car has no heat and the fans on the radiator are not coming on. I burped the system and still nothing it was all working fine before. Does anyone have any suggestions to why this is happening?
reply
this is a good video thank you. hello I have a 2006 Subaru 2. 5i limited outback I recently did a radiator flush on it and now my car has no heat and the fans on the radiator are not coming on. I burped the system and still nothing it was all working fine before. Does anyone have any suggestions to why this is happening?
reply
LordShellington
What if my fans never kick on even after the green connector test proves that my fans are being controlled by the computer?
I've tried all the other obvious tests as well like the checking the fuses and starting the car and running the AC and letting it get up to temp with no fan action.
reply
What if my fans never kick on even after the green connector test proves that my fans are being controlled by the computer?
I've tried all the other obvious tests as well like the checking the fuses and starting the car and running the AC and letting it get up to temp with no fan action.
reply
John
Great description on how to troubleshoot the electrical portion of this problem. I was wondering though why you didnt explore the thermostat as a possible cause of the error code. A failed thermostat is the most common cause of that particular code on Subarus.
reply
Great description on how to troubleshoot the electrical portion of this problem. I was wondering though why you didnt explore the thermostat as a possible cause of the error code. A failed thermostat is the most common cause of that particular code on Subarus.
reply
Mr.
I just did a radiator replacement on a 2001 Subaru Outback 2. 5 L. I noticed the coolant fans didn't came on. I turned on the AC and both fans came on. After watching this I understand why they never came on. Thank you for making such useful video.
reply
I just did a radiator replacement on a 2001 Subaru Outback 2. 5 L. I noticed the coolant fans didn't came on. I turned on the AC and both fans came on. After watching this I understand why they never came on. Thank you for making such useful video.
reply
Add a review, comment
Other channel videos
