HELP! 05 F350 6.0 overheats and loses power when towing - Ford Powerstroke Diesel Forum
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post #1 of 16 Old 06-05-2012, 11:24 AM Thread Starter
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HELP! 05 F350 6.0 overheats and loses power when towing

pulling a light skidsteer just across town and gauge pegs. Lots of pressure in degas bottle. Also only have AC if I'm moving not rolling slowly or at idle... New waterpump and thermostat. Pulled EGR valve and it's dry and also no white smoke...truck has 120k and at 90k head gasket and oil cooler were changed. Also, recently noticed that the wires going to my fan clutch have been severed by the fan. (Got rough with shroud during water pump day) I tried to splice them back but they had been pulled from the connector and on the other side of connector they are not all the same color. Any thoughts. Thanks!
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post #2 of 16 Old 06-05-2012, 12:26 PM Thread Starter
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maybe someone could take a look at their 6.0 and match the wires for me....
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post #3 of 16 Old 06-05-2012, 12:32 PM
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First suggestion, is get a new cable for the fan clutch. There is so much dependence on these motors for electrical signal, if somethings not perfect it may impact performance.

Second, do you have a monitor on the truck and know what the ECT and EOT was at the time that this happened?
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post #4 of 16 Old 06-05-2012, 01:06 PM Thread Starter
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did some looking and it seems the cable and clutch are one assembly. Around $300
No monitor.
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post #5 of 16 Old 06-05-2012, 06:53 PM
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I strongly recommend you pick up a monitor, like the Edge Insight CS or CTS.

You have three key temps when towing, ECT, EOT, and Trans Temp. The Insight can monitor all three, and provide real time data so you can avoid the overtemp issues. The stock gauges, are idiot lights at best. If you don't believe that, look at the trans temp on the dash in the morning, temp doesn't come up to OT that quickly.

I think you simply overheated and didn't create any additional issues. But keep an eye on those coolant levels, and temps.

If you need more information on the monitor, let me know.
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post #6 of 16 Old 06-06-2012, 06:04 AM Thread Starter
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dealer wants.$475 for clutch.i would like to try splicing first but need diagram. i must have sliced wrong because AC is still acting up
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post #7 of 16 Old 06-06-2012, 06:35 AM
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Here is all I could find...

HELP! 05 F350 6.0 overheats and loses power when towing-untitled.jpg

MikeB

2005 F-250 6.0L, crew cab, long bed 4x4
completed in 2011: STC update, new IPR, BPD EGR cooler, oil cooler rebuild, 6.4 banjo bolts, blue spring update, SCT X3, Insight CTS, 58V FICM, CCV Mod, DIY coolant filter (now gone), refinished turbo
2012: ARP headstuds, OEM gaskets, standpipes and dummy plugs
2015: XDP coolant filter
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post #8 of 16 Old 06-06-2012, 07:31 AM Thread Starter
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thanks for the diagram. i must have an supermarket clutch because the wire colors don't match. i see the male circuit functions but are the female functions available . could go that route..
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post #9 of 16 Old 06-06-2012, 08:12 AM Thread Starter
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aftermarket ha
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post #10 of 16 Old 06-06-2012, 09:08 AM Thread Starter
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i must have spliced wrong because AC not working correctly
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