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post #1 of 29 Old 04-05-2012, 09:34 AM Thread Starter
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High coolant temp

Yesterday towing about 11k trailer I hit about 228 degrees on my coolant temps several times. I was going up long climbs , but it has never done this before. Outside temp was 75, very odd. I checked everything when it cooled down, coolant was a little low, but right at the min mark. I added some distilled water. Any thoughts?

2006 F250 King Ranch FX4 - (Build date Sept. 2005)
6.0L (Engine Build date Sept. 21 2005)
Dark Copper w/ Beige accent
Short Bed, Crew Cab, Sun Roof, Power Rear Window
18" KR wheels, Camper Package, Tow Command

Mods: Shaker 500 Stereo, Alpine MRV-F450 amp, Infiniti Speakers, Line-X, Edge Insight CTS w/pryo, Mag-Hytec Differential Cover, MBRP 4" Turbo Back Exhaust, Diesel Site Coolant Filter, Blue Spring upgrade, Fleetrite ELC, Fuel Pressure Guage, NCHornet CCV Mod, Swamps 58v FICM
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post #2 of 29 Old 04-05-2012, 09:37 AM Thread Starter
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The thermostat is new about 6 months ago.

2006 F250 King Ranch FX4 - (Build date Sept. 2005)
6.0L (Engine Build date Sept. 21 2005)
Dark Copper w/ Beige accent
Short Bed, Crew Cab, Sun Roof, Power Rear Window
18" KR wheels, Camper Package, Tow Command

Mods: Shaker 500 Stereo, Alpine MRV-F450 amp, Infiniti Speakers, Line-X, Edge Insight CTS w/pryo, Mag-Hytec Differential Cover, MBRP 4" Turbo Back Exhaust, Diesel Site Coolant Filter, Blue Spring upgrade, Fleetrite ELC, Fuel Pressure Guage, NCHornet CCV Mod, Swamps 58v FICM
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post #3 of 29 Old 04-05-2012, 09:38 AM Thread Starter
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Another thing, I noticed the fan not sounding as loud as normal.

2006 F250 King Ranch FX4 - (Build date Sept. 2005)
6.0L (Engine Build date Sept. 21 2005)
Dark Copper w/ Beige accent
Short Bed, Crew Cab, Sun Roof, Power Rear Window
18" KR wheels, Camper Package, Tow Command

Mods: Shaker 500 Stereo, Alpine MRV-F450 amp, Infiniti Speakers, Line-X, Edge Insight CTS w/pryo, Mag-Hytec Differential Cover, MBRP 4" Turbo Back Exhaust, Diesel Site Coolant Filter, Blue Spring upgrade, Fleetrite ELC, Fuel Pressure Guage, NCHornet CCV Mod, Swamps 58v FICM
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post #4 of 29 Old 04-05-2012, 11:54 AM
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If the coolant temp was 228* I think the fan should have been "full on". Should sound like a jet engine... Maybe the fan clutch is getting a little weak.

05 Extended Cab FX4
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Ble-Blah mod...
Edge Insight CTS w/EGT
PHP Tuned FICM-Hercules
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post #5 of 29 Old 04-05-2012, 01:05 PM Thread Starter
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That's what I was thinking, I know the sound and it wasn't loud like that. no puking.

2006 F250 King Ranch FX4 - (Build date Sept. 2005)
6.0L (Engine Build date Sept. 21 2005)
Dark Copper w/ Beige accent
Short Bed, Crew Cab, Sun Roof, Power Rear Window
18" KR wheels, Camper Package, Tow Command

Mods: Shaker 500 Stereo, Alpine MRV-F450 amp, Infiniti Speakers, Line-X, Edge Insight CTS w/pryo, Mag-Hytec Differential Cover, MBRP 4" Turbo Back Exhaust, Diesel Site Coolant Filter, Blue Spring upgrade, Fleetrite ELC, Fuel Pressure Guage, NCHornet CCV Mod, Swamps 58v FICM
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post #6 of 29 Old 04-05-2012, 01:52 PM
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I have seen coolant temp that high while towing, AC on and 100* ambient air temp. It was not my truck, but I have seen the ECT that high...

When the ECT was 225* the fan was full on loud!

05 Extended Cab FX4
SCT w/ Gearhead Tunes
Ble-Blah mod...
Edge Insight CTS w/EGT
PHP Tuned FICM-Hercules
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post #7 of 29 Old 04-06-2012, 04:21 AM Thread Starter
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Is there a way to test the clutch fan? I only have 45,000 miles on the truck, I would hate to think it was bad already.

2006 F250 King Ranch FX4 - (Build date Sept. 2005)
6.0L (Engine Build date Sept. 21 2005)
Dark Copper w/ Beige accent
Short Bed, Crew Cab, Sun Roof, Power Rear Window
18" KR wheels, Camper Package, Tow Command

Mods: Shaker 500 Stereo, Alpine MRV-F450 amp, Infiniti Speakers, Line-X, Edge Insight CTS w/pryo, Mag-Hytec Differential Cover, MBRP 4" Turbo Back Exhaust, Diesel Site Coolant Filter, Blue Spring upgrade, Fleetrite ELC, Fuel Pressure Guage, NCHornet CCV Mod, Swamps 58v FICM
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post #8 of 29 Old 04-06-2012, 06:05 AM
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Check for codes... With the IDS or NGS you can run a fan test, or a KOER test and it will check the clutch operation.

The other way would be to have the scan tool hooked up and watch fan speed and duty cycle while under those same conditions.

05 Extended Cab FX4
SCT w/ Gearhead Tunes
Ble-Blah mod...
Edge Insight CTS w/EGT
PHP Tuned FICM-Hercules
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post #9 of 29 Old 04-06-2012, 07:14 AM Thread Starter
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What is IDS or NGS? I dont see a fan speed on my insight to watch it. I don't see any codes.

2006 F250 King Ranch FX4 - (Build date Sept. 2005)
6.0L (Engine Build date Sept. 21 2005)
Dark Copper w/ Beige accent
Short Bed, Crew Cab, Sun Roof, Power Rear Window
18" KR wheels, Camper Package, Tow Command

Mods: Shaker 500 Stereo, Alpine MRV-F450 amp, Infiniti Speakers, Line-X, Edge Insight CTS w/pryo, Mag-Hytec Differential Cover, MBRP 4" Turbo Back Exhaust, Diesel Site Coolant Filter, Blue Spring upgrade, Fleetrite ELC, Fuel Pressure Guage, NCHornet CCV Mod, Swamps 58v FICM
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post #10 of 29 Old 04-08-2012, 06:43 AM Thread Starter
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Can someone tell me what these tests are, can I do them or dealer?

Thanks

2006 F250 King Ranch FX4 - (Build date Sept. 2005)
6.0L (Engine Build date Sept. 21 2005)
Dark Copper w/ Beige accent
Short Bed, Crew Cab, Sun Roof, Power Rear Window
18" KR wheels, Camper Package, Tow Command

Mods: Shaker 500 Stereo, Alpine MRV-F450 amp, Infiniti Speakers, Line-X, Edge Insight CTS w/pryo, Mag-Hytec Differential Cover, MBRP 4" Turbo Back Exhaust, Diesel Site Coolant Filter, Blue Spring upgrade, Fleetrite ELC, Fuel Pressure Guage, NCHornet CCV Mod, Swamps 58v FICM
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