96 blazer 4×4 LS engine cooling fan running all the time
Thread Starter
|
Starting Member
Joined: Sep 2020
Posts: 1
96 blazer 4×4 LS engine cooling fan running all the time
My 96 blazer has engine cooling fan running all the time ......its not overheating or throwing codes ....running slughish ...i think .....put new ac comoressor on recently ......has hot heat and cold air and recently did oil change and coolant flush ...fan spins freely when vehicle is off ......i cant figure it out .......help !
Last edited by Tyler Shaffer; Sep 12, 2020 at 09:52 AM.
Moderator
Joined: Oct 2014
Posts: 4,334
From: North Central Indiana
My 96 blazer has engine cooling fan running all the time ......its not overheating or throwing codes ....running slughish ...i think .....put new ac comoressor on recently ......has hot heat and cold air and recently did oil change and coolant flush ...fan spins freely when vehicle is off ......i cant figure it out .......help !
Last edited by LesMyer; Sep 12, 2020 at 11:39 AM.
Moderator
Joined: Nov 2007
Posts: 2,185
From: Zurich
The viscous fans always turn with the engine running but with little resistance. If it engages because of heat it "roars", as LesMyers has pointed out. From experience I know that we have to tell "roar" because it is quite distinctive when it really engages, vs. it's kind of "free wheeling".
With the engine stopped it should have a slight drag and not spin freely!
With the engine stopped it should have a slight drag and not spin freely!
Thread
Thread Starter
Forum
Replies
Last Post
Randy S. Hager
2nd Generation S-series (1995-2005) Tech
5
Jun 11, 2016 05:56 PM