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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Engine Fan driving me nuts

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Old Sep 5, 2011 | 05:23 PM
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Engine Fan driving me nuts

'05 6.0 did an egr delete about 3 months ago and just recently the engine fan has gone crazy, everything was just fine for 2 months, does anybody have an idea of how to solve this problem????
 
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Old Sep 5, 2011 | 05:48 PM
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Explain what you mean by gone crazy. That doesn't tell us a whole lot.

When you did the egg delete did you leave the valve plugged in? If not might want to plug that back in because it will (on certain strategies) mess with the fan operation.
 
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Old Sep 5, 2011 | 06:36 PM
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thanks, i will check to see if it is still plugged in
 
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Old Sep 5, 2011 | 07:43 PM
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Yup, if you put a block off plate in for the EGR valve I would take that plate out and reinstall the egr valve.
 
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Old Sep 6, 2011 | 12:08 AM
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You might install reliable coolant & oil tempature guages. Either one could be over heating and calling often for fan .
 
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Old Sep 6, 2011 | 07:50 AM
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That is what mine was doing when the oil cooler was blocked.
 
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Old Sep 6, 2011 | 08:55 AM
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Originally Posted by b2bc
'05 6.0 did an egr delete about 3 months ago and just recently the engine fan has gone crazy, everything was just fine for 2 months, does anybody have an idea of how to solve this problem????
You need gauges - SGII or equivalent. It will let you know
if your coolant or oil temps are out of range and possibly
why your fan is going crazy.

Did you replace the oil cooler when you did the EGR cooler?
The oil cooler getting clogged is what leads to the EGR cooler
overheating and melting.

It seems back in '03/'04 mechanics didn't know the OIL cooler would
get the coolant passages clogged and this would reduce the coolant
flow to the EGR cooler and the EGR cooler failed and led to repeated
EGR cooler replacements before the OIL cooler was identified as the
cause of the original problem(s).
 
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Old Sep 6, 2011 | 10:15 AM
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When I run my truck with the egr valve unplugged. My engine had no middle rpms. Its 100% lockup or nothing at all.
 
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Old Sep 6, 2011 | 10:23 AM
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From: Ouray, CO
Originally Posted by Unrealo4
When I run my truck with the egr valve unplugged. My engine had no middle rpms. Its 100% lockup or nothing at all.
Others have reported if you unplug the EGR valve is causes
odd FAN behavior - exactly what behavior is controlled by the
version of strategy you have.

Certain years will also have a CEL on as well.
 
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