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6.0 fan Clutch

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Old 02-04-2012, 04:27 PM
dr103 dr103 is offline
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6.0 fan Clutch

It seems as though my fan clutch is not working. I put in the fss for the sc2. Fan speed runs from 325 to 650. My temps are running 188-192 just regular driving. When pulling heavy loads, temps may run up to 202. I know it's cooler but I think the fan should be coming on more especially when pulling heavy loads. My heavy loads are round 26-28000 lbs. I have not seen the ect above 202. EOT temps are rite where they need to be.

Any of you pros know of any trick I can do to test short of taking it to dealer. Out of warranty on time but short on miles.

Thanks David
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Old 02-04-2012, 04:37 PM
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Sounds like its working ok to me

202 ECT isnt that Hot

at 190ECT the thermostat just begins to open and is not fulley open untill around 218* ECT

You wont see any big fan increase untill 216-218 ECT at that point mine Fan will Kick upto 1500-1800 Fan RPMs

Also lots of things play into the Fan Speed like Ambeint temp,ECT,Speed,A/C on stuff like that

I think your Fan is Just fine IMO
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Old 02-04-2012, 05:26 PM
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active command fanvar# fanss should be aprox 2800 rpm with engine at 2500 rpm.
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Old 02-05-2012, 06:08 PM
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Bismic In laymen terms what are you saying. I understand the 2800 @ 2500. Didn't understand the first part.

David
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Old 02-05-2012, 06:18 PM
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I didn't see a Bismic answer. Are you looking for his op over cheezit? They are both very knowledgable but cheezit is a diesel tech. Just trying to clarify.
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Old 02-05-2012, 06:24 PM
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you need a scan tool that do active commands such as AE or ids. go to the active commandf function and get pids fanss fanvar# and rpm
then do as suggested.
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Old 02-05-2012, 07:21 PM
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dr103 you need to correct your post ASAP - don't want cheezit to quit the forum!! (Can't hold a candle to him!! I can barely even handle his tuned truck - hard to keep the rear wheels straight - lol).
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Old 02-05-2012, 07:22 PM
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thanks Mark.
Its the one thing in life I have found myself to be good at.
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Old 02-05-2012, 07:45 PM
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Wonder if he has the EGR valve unplugged?
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Old 02-05-2012, 10:13 PM
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My fault cheezit. Had just read an opinion by Bismic & he was on my brain. Again Sorry. No egr is still plugged in.

David
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Old 02-06-2012, 06:28 AM
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Quote:
Originally Posted by cheezit View Post
thanks Mark.
Its the one thing in life I have found myself to be good at.


Damn that's funny...
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Old 02-09-2012, 03:00 PM
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6.0 fan clutch

Did a good test today I think. Had a job where I had to drive about 1.5 hours to get to with my skid steer & hydro ax.It was a little warmer today so that was good. While pulling 28000 lbs I'm noticing the fan speed & ECT. When ECT gets to 206 the fan will begin to speed up. By 209-210, the fan speed will increase to 18-2100 rpm. It does cool down, but I never here the fan. I have always been able to hear it. I'm just wondering if the fan is slipping being it never goes over 2100. The engine was at 2900 rpm with the fan at 1900-2100. I am using a ScanGauge 2 for all my monitoring.

Just wondering what you pros think is going on.

Thanks David
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Old 02-09-2012, 06:15 PM
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what was fanvar# when that was happing. thats the only way to know.
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