Tech help Please - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 06-17-2011, 05:40 AM Thread Starter
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Tech help Please

How do the auto hubs work on an 06? Is it vacuum to lock or unlock the hubs? I have a crazy pull going on after a turn in either direction. The truck will pull in the direction of the turn. This is very intermittent. It goes straight after what ever is hanging up lets loose.

Any help and suggestions will be greatly appreciated.

2006 cc 4x4,Rotella 5-40,Amsoil bypass filter Dieselsite coolant filter, edge evolution, K&N air filter, high idle mod, zoodad mod, 60 gallon Titan Tank, blue spring kit, Airlift 5000 bags, Bilstein hd shocks, MBRP 4 inch st pipe turbo back, welded egr cooler
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post #2 of 11 Old 06-17-2011, 07:01 AM
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I would think it is more likely a brake hanging up than a hub. Vacuum locks and unlocks the hub based on the position of the switch. If the switch isn't engaged, it won't lock them. To confirm it isn't your hub, manually unlock them. (I'm assuming they are in auto right now). Drive it around several corners and if it is still pulling, then your problem is somewhere else.

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2005 F250, CCSB, 6.0 PSD, FX4 (The Sweet Unit is white)
2008 F350, CCLB, 6.4 PSD (Brad-the wife's truck is black)




Engine Mods:
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4" MBRP Exhaust
MTW Stage 1 Turbo
Bulletproof 53V FICM
BulletProof EGR Cooler
BulletProof Water Pump
Riff Raff Intercooler Boots
Gogo Diesel Direct Drive Solenoid
BulletProof All-Aluminum Radiator
BulletProof All-Aluminum Intercooler
BulletProof Oil Cooler System w/ Bypass Filter
SCT w/ Custom Tunes (TSD, DJ's, Innovative, Gearhead, QuickTricks)

Exterior Mods:
Bilstein 5100 Shocks
Icon Adjustable Trac Bar
Firestone RideRite Air Bags
BDS Dual Steering Stabilizer
Aluminum Finned Differential Cover
Reese 16k Manual Slider 5th Wheel Hitch
Icon 2.5" Leveling Kit w/ F-350 rear blocks
20" BMF Novakanes wrapped in 33" Nitto Terra Grapplers
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post #3 of 11 Old 06-17-2011, 07:07 AM Thread Starter
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Just replaced all calipers and pads. I'm suspecting vacuum because it's so intermittent. Does vacuum engage the auto hub or hold it disengeged? I will try locking the hubs tonight.

2006 cc 4x4,Rotella 5-40,Amsoil bypass filter Dieselsite coolant filter, edge evolution, K&N air filter, high idle mod, zoodad mod, 60 gallon Titan Tank, blue spring kit, Airlift 5000 bags, Bilstein hd shocks, MBRP 4 inch st pipe turbo back, welded egr cooler
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post #4 of 11 Old 06-17-2011, 07:16 AM
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Yes, I'm pretty sure that vacuum engages the hub.

Shawn Carlson
EvilEye@powerstroke.org

Proud Navy Vet
2005 F250, CCSB, 6.0 PSD, FX4 (The Sweet Unit is white)
2008 F350, CCLB, 6.4 PSD (Brad-the wife's truck is black)




Engine Mods:
Fluidampr
CCV Reroute (Reinstated)
4" MBRP Exhaust
MTW Stage 1 Turbo
Bulletproof 53V FICM
BulletProof EGR Cooler
BulletProof Water Pump
Riff Raff Intercooler Boots
Gogo Diesel Direct Drive Solenoid
BulletProof All-Aluminum Radiator
BulletProof All-Aluminum Intercooler
BulletProof Oil Cooler System w/ Bypass Filter
SCT w/ Custom Tunes (TSD, DJ's, Innovative, Gearhead, QuickTricks)

Exterior Mods:
Bilstein 5100 Shocks
Icon Adjustable Trac Bar
Firestone RideRite Air Bags
BDS Dual Steering Stabilizer
Aluminum Finned Differential Cover
Reese 16k Manual Slider 5th Wheel Hitch
Icon 2.5" Leveling Kit w/ F-350 rear blocks
20" BMF Novakanes wrapped in 33" Nitto Terra Grapplers
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post #5 of 11 Old 06-17-2011, 07:20 AM Thread Starter
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Thats what I thought. I'm hoping it's not ujoints. They look to be a big pain to change.

This has me stumped.

2006 cc 4x4,Rotella 5-40,Amsoil bypass filter Dieselsite coolant filter, edge evolution, K&N air filter, high idle mod, zoodad mod, 60 gallon Titan Tank, blue spring kit, Airlift 5000 bags, Bilstein hd shocks, MBRP 4 inch st pipe turbo back, welded egr cooler
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post #6 of 11 Old 06-17-2011, 07:40 AM
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Wow, u-joints already on a 2006? That seems kind of early with only 5 years on the truck, although these trucks seem to eat ball joints, so I guess anything is possible. Please keep us posted on your results.

Shawn Carlson
EvilEye@powerstroke.org

Proud Navy Vet
2005 F250, CCSB, 6.0 PSD, FX4 (The Sweet Unit is white)
2008 F350, CCLB, 6.4 PSD (Brad-the wife's truck is black)




Engine Mods:
Fluidampr
CCV Reroute (Reinstated)
4" MBRP Exhaust
MTW Stage 1 Turbo
Bulletproof 53V FICM
BulletProof EGR Cooler
BulletProof Water Pump
Riff Raff Intercooler Boots
Gogo Diesel Direct Drive Solenoid
BulletProof All-Aluminum Radiator
BulletProof All-Aluminum Intercooler
BulletProof Oil Cooler System w/ Bypass Filter
SCT w/ Custom Tunes (TSD, DJ's, Innovative, Gearhead, QuickTricks)

Exterior Mods:
Bilstein 5100 Shocks
Icon Adjustable Trac Bar
Firestone RideRite Air Bags
BDS Dual Steering Stabilizer
Aluminum Finned Differential Cover
Reese 16k Manual Slider 5th Wheel Hitch
Icon 2.5" Leveling Kit w/ F-350 rear blocks
20" BMF Novakanes wrapped in 33" Nitto Terra Grapplers
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post #7 of 11 Old 06-20-2011, 07:14 AM Thread Starter
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Looks like ujoints. Locked the hubs and drove in 2wd for a few miles. The first half mile was rough but they loosened up and it drove without issue. It has not pulled since. Any recomendations on ujoint manufacturers?

2006 cc 4x4,Rotella 5-40,Amsoil bypass filter Dieselsite coolant filter, edge evolution, K&N air filter, high idle mod, zoodad mod, 60 gallon Titan Tank, blue spring kit, Airlift 5000 bags, Bilstein hd shocks, MBRP 4 inch st pipe turbo back, welded egr cooler
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post #8 of 11 Old 06-20-2011, 08:16 AM
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I just went through this same thing on my way to Laconia New Hampshire for the Bike Rally this past weekend. I spent yesterday replacing the balljoints and the axle u-joint on one side. Problem corrected, but I did find alot of needlebearings and metal slivers in the hub.
Thinking a new one is in order soon.
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post #9 of 11 Old 06-20-2011, 08:49 AM Thread Starter
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I was looking at the hubs first. I can't find a replacement from anyone but the dealer. If anyone knows of any please post. Warn has nothing for superduties after 2004.

2006 cc 4x4,Rotella 5-40,Amsoil bypass filter Dieselsite coolant filter, edge evolution, K&N air filter, high idle mod, zoodad mod, 60 gallon Titan Tank, blue spring kit, Airlift 5000 bags, Bilstein hd shocks, MBRP 4 inch st pipe turbo back, welded egr cooler
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post #10 of 11 Old 06-20-2011, 08:51 AM
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Actually, I think you need to call Warn. I believe they do have something but they haven't updated anything online in so long it doesn't show.

When I had the axle in my hand it was obvious my issue was the u-joint. 1/2 of it would not turn at all and was fused to the caps. The caps were spinning in the yoke instead of on the needle bearings.
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