6.0 Fan Clutch
#1
6.0 Fan Clutch
This was my first summer with my truck. This summer I was having A/C idle cooling issues. The motor never over heated, but at idle the A/C put out hot air. I took it to the dealer under warranty, and they said the condensor was dirty. They cleaned the condensor. It was a bit better after that.
Fast forward
Yesterday I changed my alternator, during the change I found the connector at the fan shroud disconnected. I have no idea when it was disconnected, anyways I reconnected it.
I cannot at any time remember hearing the typical fan roar occur. At what time should I hear the "roar"? Engine off, the fan has resistance. Is there another way to test?
Anyone have a link on how to remove the fan shroud and clutch?
Fast forward
Yesterday I changed my alternator, during the change I found the connector at the fan shroud disconnected. I have no idea when it was disconnected, anyways I reconnected it.
I cannot at any time remember hearing the typical fan roar occur. At what time should I hear the "roar"? Engine off, the fan has resistance. Is there another way to test?
Anyone have a link on how to remove the fan shroud and clutch?
#2
#3
About the only time you will hear the fan pulling hard is when pulling a heavy trailer in hills/mountains in hot weather. Even when it is "disengaged" the fan pulls a fairly large amount of air through the radiator.
There is no easy way for the typical owner to test the fan operation. At the dealership, we use a scan tool to actively control the fan clutch via the ECM and see how well it responds.
Jay
There is no easy way for the typical owner to test the fan operation. At the dealership, we use a scan tool to actively control the fan clutch via the ECM and see how well it responds.
Jay
#5
You may hear the fan on cold starts, but it's not because the PCM is turning it on. It's because the silicone fluid in the clutch is very thick due to the cold and has settled into the working part of the clutch, which causes drag. Once you start the engine, the clutch slips, heating up the fluid and thinning it out. It is then pumped into a reservoir area in the fan clutch housing and the fan will start to slow down. The length of this process varies due to variables like clutch design, ambient temp, cold soak time, wind speed, etc. But, yes, you may still hear the fan for five seconds or so after a cold start.
Jay
Jay
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bcamill
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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03-07-2016 07:22 PM