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Feb 22, 2014 | 09:24 PM

#21

cornbreadj

Mudding

Joined: Jan 2014

Posts: 137

Likes: 2

I have a
03 i just put 180 stat in and it runs at 186. At a stop 194.
The old stat had it running at 208 at stop 215

Feb 22, 2014 | 10:42 PM

#22

oilspotLR

Winching

Joined: Feb 2012

Posts: 610

Likes: 1

Quote:

Originally Posted by Ducwad

I also noticed that my viscous fan is always spinning. When cold the first attempt to spin it by hand it fails as expected but by the third attempt it is spinning all the way round and more. When I started the truck to warm it up after putting the cooling system back together I noticed that it ran from startup and never stopped. I hate to think that the only reason I didn't overheat was that my fan was stuck. I'll have to add it to the list of things to do.

Your main engine fan will always be turning. Look at it when running, notice how its attached to the water pump? If your viscous fan doesn't turn when running you have a bad water pump.
Check your fan once its warm. Turn the engine off, and mark it to see if you can spin it.
Also, at start up you should hear a "roar" sound from the viscous fan. Take a cheap plastic bag and put it in front of the grill. See if the bag is sucked towards the radiator. This will ensure your fan blades are in the correct orientation.