New water pump and fan doesn't disengage???? - Ford Powerstroke Diesel Forum
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Old 02-19-2012, 12:36 PM
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New water pump and fan doesn't disengage????

My water pump just took a crap. I replaced it today and now the fan clutch doesn't disengage. Ive driven it to operating temp and let it cool back down and still stays engaged. I am sure I put everything back on correct and put in brand new coolant that was 50/50 already...
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Old 02-19-2012, 12:44 PM
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Why do you say it stays engaged? The fan will turn just from the slippage in between the clutches, just not at full speed when the clutch is engaged. When engaged, you WILL hear it roaring when driving.
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Old 02-19-2012, 06:55 PM
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Ok... well it roars. I.E. it stays engaged as in when the RPM's rev up fast the noise of the fan being engaged increases. When I down shift from a higher gear to a lower gear you can hear the fan roar up.
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Old 02-19-2012, 06:59 PM
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What symptoms were you seeing to diagnose the bad water pump?
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Old 02-19-2012, 07:09 PM
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Engine water temp gauge around 3/4 and stopped and walked in front of my truck and saw coolant pouring down like a water fall. Then when I tore it apart and looked at the water pump you could see the stain where the coolant was leaking out.
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Old 02-19-2012, 07:14 PM
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Yeah, that's a pretty good symptom.
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Old 02-19-2012, 07:16 PM
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Yeah I have 150,000+ on the truck so I figured it was only a matter of time really until it went. What I am trying to figure out is why the fan clutch doesn't disengage.
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Old 02-20-2012, 07:07 AM
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Do you have a way to verify actual coolant temperature other than the idiot gauge on the instrument cluster? By the way, if it got as hot as you've described, hopefully you didn't do other damage. Where exactly did you see coolant pouring out? Those 2003 model year water pumps were pretty well known for reliability issues.
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Old 04-26-2012, 07:36 PM
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Heres what I am dealing with. Again with the early 6.0! I was told by a dealer that my hgs are blown. The only problem I am having with the truck is the fan clutch is kicking on and off for no reason. At highway speeds the temp gauge goes fairly high then comes back down. No loss of power, no puking, no coolant loss and no white smoke or any smoke from the tailpipe. I changed the fan clutch thinking it was bad like it has before. I replaced the ect sensor. It did not help. I replaced the oil cooler and did the egr delete myself about 20K miles ago. Been running good. Just about had with the old beech. Anyone have any suggestions? How about a good independent mechanic in Dallas?
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Old 04-26-2012, 09:58 PM
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I am just not shure what the question or the problem is here. I see being described is the normal operation of a clutch fan and a engine cooling system.
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