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  #1  
Old 02-08-2014, 01:03 PM
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Fan clutch, force code?

Can I force the truck to throw a fan clutch code by unplugging it?


I just put in a new fan clutch this morning and it's in the upper 80's here and I can't hear the fan coming on. Ect temps have crept up into 200 driving around today

I've tried a little spirited driving, idling for long periods, ac on max, etc

From what I've read this fan is supposed to be really loud when it comes on right ? I don't think ive ever heard it
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Old 02-08-2014, 01:09 PM
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You'll know it when it comes on but I don't think it's designed to come on until 215 or 225. I've heard mine once in 7 years and I was towing when it did it.
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Old 02-08-2014, 01:31 PM
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You should get a code but not a light necessarily. While unplugged test for voltage comeing to it. No voltage with koeo check your fuzes and relay.
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Old 02-08-2014, 01:33 PM
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I unplugged it and started it up and read a p04080

One other thing I noticed is the small line going from the block into the degas is constantly pouring coolant in. Is this normal operation?
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Old 02-08-2014, 01:34 PM
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Quote:
Originally Posted by dannyboy950 View Post
You should get a code but not a light necessarily. While unplugged test for voltage comeing to it. No voltage with koeo check your fuzes and relay.
10-4

Trying to figure out why my truck runs so hot .. Doesn't seem right
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Old 02-08-2014, 01:41 PM
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Doing some googling and my fog lights don't work.. Was one of the things I've been meaning to get around to

Gotta find a wiring diagram .. Someone mentioned that may also be the same fuse that controls the fan?
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Old 02-08-2014, 01:54 PM
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Quote:
Originally Posted by yamasaki View Post
Doing some googling and my fog lights don't work.. Was one of the things I've been meaning to get around to

Gotta find a wiring diagram .. Someone mentioned that may also be the same fuse that controls the fan?
Hmmm.was reading this and I have a fan code and did not see any wiring issue and...my fog lights don't work either. Was trying to work on this this week but temps to cold outside. Will have to see about the fuse also.
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Old 02-08-2014, 01:57 PM
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If its your fan clutch don't buy a new one right away .. I'll send u the one I pulled out today some can test swap if u want

If it turns out to be something else I just put in a new fan clutch for no reason lol

Found this
http://ww2.justanswer.com/uploads/s4..._fan_tests.pdf
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Old 02-08-2014, 01:58 PM
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Check that they are actually plugged in. We found a few in the fleet with factory fog lamps that they had never been plugged in.
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Old 02-08-2014, 02:02 PM
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Quote:
Originally Posted by dannyboy950 View Post
Check that they are actually plugged in. We found a few in the fleet with factory fog lamps that they had never been plugged in.
Plugged in where....I assume you mean not the actual bulbs themselves...if so then yes they are plugged in as I replaced both bulbs. The prevous owner had a plow installed I think and so removed the bulbs and put in some plow lights in the grill.

If you mean plugged in somewhere else.....?
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