Aux cooling fan will not shut off...

llonman · 04-19-2005, 07:04 AM

Can someone with a Bentley manual or who is really inteligent :--) point me in the right direction with this problem. Last fall I had a mishap where jumper cable were reversed on my car. Luckily no major damage, (if you dont count replacing the alternator twice in 30 days) but one issue that is still unresolved is that my aux cooling fan will not shut off. I had to remove the connector from the wiring harness. Now that it is getting warmer I need to fix it. A schematic would make things so much easier. I am assuming that the fan is controlled by a relay or something that in turn is activated by the thermostat. Help!

Thanks,

Lonnie

carbonLORD · 04-19-2005, 07:27 AM

....especially when I turn the car off its like a turbine spooling down, I sort of like it, it sounds like a Porsche.

It was not as loud before, but ever since the accident/conversion when Audi recharged it and fixed it, it sounds louder to me.

Its also much colder then ever before so it definetly aint broken.

Any ideas why my cars AC sounds like a jet engine now?

saabSean · 04-19-2005, 07:52 AM

at the bottom of your radiator. If the fan shuts off then it's a bad switch.

saabSean · 04-19-2005, 07:54 AM

Have you checked the climate control for any errors?

carbonLORD · 04-19-2005, 07:57 AM

saabSean · 04-19-2005, 08:27 AM

RMcQ · 04-19-2005, 10:04 AM

RMcQ · 04-19-2005, 10:06 AM

check this link for complete details:

http://forums.audiworld.com/allroad/msgs/49702.phtml

carbonLORD · 04-19-2005, 10:34 AM

carbonLORD · 04-19-2005, 10:58 AM

....both fans seem to be running fast, I cant isolate the noise to the front or rear fan. When the AC is off, both fans spin by hand freely so I have no idea.

Its cold, it blows and they both seem to be running fine so ?

At least I like the jet turbine noise it makes

04-19-2005, 07:27 AM	#2
carbonLORD AudiWorld Uber User Garage is empty, add now Join Date: Feb 2002 Posts: 42,977	Hijack! My car sounds like a jet engine when I run the AC.... ....especially when I turn the car off its like a turbine spooling down, I sort of like it, it sounds like a Porsche. It was not as loud before, but ever since the accident/conversion when Audi recharged it and fixed it, it sounds louder to me. Its also much colder then ever before so it definetly aint broken. Any ideas why my cars AC sounds like a jet engine now? __________________ [img src="http://www.carbonlord.com/matte.jpg"] carbonLORD is here, punching your chests. \| RS 6 Stuff \| www.carbonLORD.com \| 08 TT 2.0

04-19-2005, 07:52 AM	#3
saabSean AudiWorld Super User Garage is empty, add now Join Date: Jul 2000 Posts: 4,434	Try disconnecting the coolant temp switch at the bottom of your radiator. If the fan shuts off then it's a bad switch. __________________ AudiWorld \|\| 1999 A6 2.8q \| 1992 100CS \| AudiWorld Photo Gallery Links \|\| Stoney's FAQ \| CycleForums European Sportbikes Forum Tech Articles \|\| Instrument Cluster Replacement \| Suction Pump Replacement Other \|\| boompa.com/audiSean FOR SALE: MOVEN SP-10 18X8.5 FORGED WHEELS, $500 for 5

04-19-2005, 07:54 AM	#4
saabSean AudiWorld Super User Garage is empty, add now Join Date: Jul 2000 Posts: 4,434	The aux fan is running on high Have you checked the climate control for any errors? __________________ AudiWorld \|\| 1999 A6 2.8q \| 1992 100CS \| AudiWorld Photo Gallery Links \|\| Stoney's FAQ \| CycleForums European Sportbikes Forum Tech Articles \|\| Instrument Cluster Replacement \| Suction Pump Replacement Other \|\| boompa.com/audiSean FOR SALE: MOVEN SP-10 18X8.5 FORGED WHEELS, $500 for 5

04-19-2005, 07:57 AM	#5
carbonLORD AudiWorld Uber User Garage is empty, add now Join Date: Feb 2002 Posts: 42,977	All is well says the VAG. __________________ [img src="http://www.carbonlord.com/matte.jpg"] carbonLORD is here, punching your chests. \| RS 6 Stuff \| www.carbonLORD.com \| 08 TT 2.0

04-19-2005, 08:27 AM	#6
saabSean AudiWorld Super User Garage is empty, add now Join Date: Jul 2000 Posts: 4,434	Are you running with the A/C on at all times? __________________ AudiWorld \|\| 1999 A6 2.8q \| 1992 100CS \| AudiWorld Photo Gallery Links \|\| Stoney's FAQ \| CycleForums European Sportbikes Forum Tech Articles \|\| Instrument Cluster Replacement \| Suction Pump Replacement Other \|\| boompa.com/audiSean FOR SALE: MOVEN SP-10 18X8.5 FORGED WHEELS, $500 for 5

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04-19-2005, 10:04 AM	#7
RMcQ AudiWorld Super User Garage is empty, add now Join Date: Mar 2000 Posts: 12,481	Exact symptoms of my car. See the link I am about to post in this thread... __________________ + + = 451whp/472 ft-lb Full RS6 bastardized allroad quattro alive and on the road.

04-19-2005, 10:06 AM	#8
RMcQ AudiWorld Super User Garage is empty, add now Join Date: Mar 2000 Posts: 12,481	Had similar problem in my allroad 3 years ago. check this link for complete details: http://forums.audiworld.com/allroad/msgs/49702.phtml __________________ + + = 451whp/472 ft-lb Full RS6 bastardized allroad quattro alive and on the road.

04-19-2005, 10:34 AM	#9
carbonLORD AudiWorld Uber User Garage is empty, add now Join Date: Feb 2002 Posts: 42,977	No, I used it twice for 5 minutes to make sure it worked. __________________ [img src="http://www.carbonlord.com/matte.jpg"] carbonLORD is here, punching your chests. \| RS 6 Stuff \| www.carbonLORD.com \| 08 TT 2.0

04-19-2005, 10:58 AM	#10
carbonLORD AudiWorld Uber User Garage is empty, add now Join Date: Feb 2002 Posts: 42,977	Thanks, I just went to check and... ....both fans seem to be running fast, I cant isolate the noise to the front or rear fan. When the AC is off, both fans spin by hand freely so I have no idea. Its cold, it blows and they both seem to be running fine so ? At least I like the jet turbine noise it makes __________________ [img src="http://www.carbonlord.com/matte.jpg"] carbonLORD is here, punching your chests. \| RS 6 Stuff \| www.carbonLORD.com \| 08 TT 2.0

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