Project Shrek - CCU fan - replacement trial
05-11-2013, 10:27 AM
#17
IHI KING!
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I am trying this fix too. I purchased a Denso fan #173000-0741 from Ebay. Its for a Land Rover Discovery link. I am working this morning but will switch the fans this afternoon and give it a try. I will let everyone know how it goes.
05-13-2013, 08:15 AM
#20
IHI KING!
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I am trying this fix too. I purchased a Denso fan #173000-0741 from Ebay. Its for a Land Rover Discovery link. I am working this morning but will switch the fans this afternoon and give it a try. I will let everyone know how it goes.
10-10-2014, 05:06 PM
#22
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What are the symtoms when this fan starts to go. I think i am hearing a whine from mine.
10-10-2014, 05:25 PM
#23
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Air temperature decrease over time
The cabin air temperature sensor gets dirty and clogged with dust over time. The CCU fan is also known to fail after many years of service, it's there to keep an airflow over the sensor.
The CCU enclosure gets quite warm during use, and if there's no air flow over the cabin temperature sensor the CCU will be fooled to think it's very hot in the cabin. It will therefore gradually close the mixer flaps as the CCU warms up. The user often turns up the temperature setting to compensate, ending up at a very high or max setting after an hour or two. This results in an almost binary temperature control, very cold or very hot.
Cheers,
Tore
The cabin air temperature sensor gets dirty and clogged with dust over time. The CCU fan is also known to fail after many years of service, it's there to keep an airflow over the sensor.
The CCU enclosure gets quite warm during use, and if there's no air flow over the cabin temperature sensor the CCU will be fooled to think it's very hot in the cabin. It will therefore gradually close the mixer flaps as the CCU warms up. The user often turns up the temperature setting to compensate, ending up at a very high or max setting after an hour or two. This results in an almost binary temperature control, very cold or very hot.
Cheers,
Tore
10-10-2014, 07:34 PM
#24
Rennlist Member
Thank you ToreB. I think this is happening to me know. Where is seems like the heat sometimes doesn't turn on, so I crank it to full, and then have to back off.
10-14-2014, 01:43 AM
#25
Rennlist Member
I bought a Jaguar version for $13 on eBay.
Denso part numbers: 173000-0xxx
-0410 Porsche 964.659.148.00
-790 Chevrolet
-0691 Audi A8 1994-98
-0860 Honda CR-V (european only?)
-0741 LandRover Discovery
-0770 Jaguar XJ8 1998-03
-0632 Chrysler 300M, Intrepid, Concorde
https://rennlist.com/forums/964-foru...-rear-fan.html
Do they sell these things new? Perhaps the Chrysler part isn't so expensive. I figure the one I am buying has 100k of miles on it which is actually more than the 75k I have on mine in my car.
Denso part numbers: 173000-0xxx
-0410 Porsche 964.659.148.00
-790 Chevrolet
-0691 Audi A8 1994-98
-0860 Honda CR-V (european only?)
-0741 LandRover Discovery
-0770 Jaguar XJ8 1998-03
-0632 Chrysler 300M, Intrepid, Concorde
https://rennlist.com/forums/964-foru...-rear-fan.html
Do they sell these things new? Perhaps the Chrysler part isn't so expensive. I figure the one I am buying has 100k of miles on it which is actually more than the 75k I have on mine in my car.
