Cooling fan activation

Discussion on Air Conditioning/Heat & electronic controls for the same, radiators/fans/engine cooling and related items.
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lastcall190
Posts: 200
Joined: Mon Sep 11, 2017 10:17 am
Location: North Jersey

Cooling fan activation

Post by lastcall190 » Sun Feb 04, 2018 7:56 pm

Quick question. Anyone know off hand the temp at which the fans kick on with a stock tune? Thanks

-J
2012 Caprice
DOD Delete, LS9 Cam, Pat G tune, Magnaflow G8 Exhaust

2008 CVPI
163k miles and counting

smwalker
Posts: 1393
Joined: Mon Jul 29, 2013 6:44 am
Location: Azusa,CA
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Re: Cooling fan activation

Post by smwalker » Sun Feb 04, 2018 8:19 pm

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Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White

lastcall190
Posts: 200
Joined: Mon Sep 11, 2017 10:17 am
Location: North Jersey

Re: Cooling fan activation

Post by lastcall190 » Sun Feb 04, 2018 9:53 pm

Huge help. Thank you

-J
2012 Caprice
DOD Delete, LS9 Cam, Pat G tune, Magnaflow G8 Exhaust

2008 CVPI
163k miles and counting

Sanford
Posts: 62
Joined: Tue Dec 13, 2016 3:38 am
Location: Texas Gulf Coast

Re: Cooling fan activation

Post by Sanford » Sun Apr 08, 2018 1:06 am

I would like to thank Steve for posting the strategy of the radiator cooling fan operation. I am slowly working out of bugs on the last 2011 that I picked up. After I recharged the AC from swapping cams, I noticed that the fans ran at a lot faster speed than the first one I picked up. I popped the hood and started the troubleshooting and I noticed only one fan was running. I would hate to hear the air noise that both of them running on high speed. After read Steve's post, it was obvious that the one fan not running was open, which prevented both fans from running on low speed and the head pressure was getting high enough to switch the fans to high speed. Installed 2 new GM motors and now they act and sound like fans on the wife's car.

David

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