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Backcountry 05-12-2004, 03:50 PM Anyone notice their fan clutch coming on first drive in the AM. Mine kicks in occasionally when I first run her in the morning. It stays engaged for about a 1/4 to 1/2 mile down the road. This normal??? Zeeb 05-12-2004, 04:12 PM Don't know if it's "normal" or not, but mine does it too. SteveNorCal 05-12-2004, 04:26 PM Mine also does this. dpower 05-12-2004, 05:02 PM Count me in. patrick 05-12-2004, 10:10 PM the new pully is smaller to allow the fan to spin faster are you an ex lb7 owner and hearing a difference. Mike L. 05-12-2004, 10:40 PM This may sound stupid but shut the AC off before you shut the truck off for the evening and see if the fan clutch still comes on in the morning. I have noticed exactly what you guys have and have been experimenting. It makes no sense, but my fan clutch only goes into full pitch on mornings that I left the AC on.http://www.dieselplace.com/forum/smileys/Geek.gif This morning was the second day in a row I shut it off(same temp 58 deg) and no noise. Why? mike Zeeb 05-12-2004, 11:14 PM Mike, I haven't thought of that one, but I've not been able to correlate anything with why it only does it occasionally. I'll try it...http://www.dieselplace.com/forum/smileys/Geek.gif Backcountry 05-13-2004, 10:28 AM Great idea. I'll try it and see what happens. It does seem to be very intermintent, so maybe this is the trick??? Dura_Mike 05-13-2004, 01:00 PM Anyone notice their fan clutch coming on first drive in the AM. Mine kicks in occasionally when I first run her in the morning. It stays engaged for about a 1/4 to 1/2 mile down the road. This normal??? My LB7 does the same thing. http://www.dieselplace.com/forum/smileys/Embarrased.gif koopdaddy 05-13-2004, 11:42 PM Mine does it here in AZ, with the AC on or off. Always every morning. It seems to be on an awful lot, I wish we could figure out a way to get electric fans, or at least a way to prolong clutch engagement Lawnboy 05-14-2004, 12:28 AM No different than any other viscous coupling clutch fan used in the last 30 some years. The fluid is thick until it warms up to temp. Melvin Hatcher 05-14-2004, 05:36 AM No different than any other viscous coupling clutch fan used in the last 30 some years. The fluid is thick until it warms up to temp. Amen bruddahttp://www.dieselplace.com/forum/smileys/Cool.gif Every Day Diesel 05-16-2004, 12:38 AM What lawnboy said...... SteveNorCal 05-16-2004, 01:52 AM Melvin, Just have to say AGAIN, man what an avatar!!!! Such a sin....http://www.dieselplace.com/forum/smileys/Big Smile.gif | ||