Bucking while towing! - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 13 Old 04-25-2010, 05:44 AM Thread Starter
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Bucking while towing!

I pull a 35' horse trailer some and am having a problem with the truck bucking/surging when it hit the bottom of a gear. It actually does it worse with the tow haul on! The worst spot is between 35-40 when I'm not on it. It shifts from 3-5 I believe and then bucks like crazy. I put the sct on last night and towed hoping it would help but no luck. Anyone know the reason for this?? Is it the tranny?? Will the river city tow tune help me at all?? I have not done the delete yet because if it's tranny related I don't wanna have to put it back on to take it in. Help!!

08 F-350 CC DRW King Ranch
SCT with river city diesel 450 tune and Delete pipe
S&B intake
access bed cover
F450 front fender flares and wheel spacers
full window tint
viper 5900 remote start
new head gaskets at 70k (pre tuner)
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post #2 of 13 Old 04-25-2010, 07:03 AM
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if its doing it stock I would go ahead and take it to the dealer.

08 F250 CC SB - too much to list

Big Thanks to:
Smokin' Guns Peformance and Accessories
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post #3 of 13 Old 04-25-2010, 07:19 AM
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Dont forget to remove your intake. Some dealers will void the warranty.

2002 f250 BFT Edition


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post #4 of 13 Old 04-25-2010, 08:52 AM
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Quote:
Originally Posted by dereku View Post
Dont forget to remove your intake. Some dealers will void the warranty.
I wouldn't worry too much about that.... My truck had an aftermarket intake when I bought it from the Ford dealer.... I've heard of many others not taking it off when they go back with no problem.
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post #5 of 13 Old 04-25-2010, 09:00 AM
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I had problems with a 6oh they refused to work on it until I took it off. Claimed it was reaching max boost too early and exceeding the maximum recommended boost.

2002 f250 BFT Edition


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post #6 of 13 Old 04-25-2010, 09:23 AM
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If its doing it stock id be a little worried. As a side not most surging issues are caused be rear axle wrap not the transmission.

Ford F250 6.4 CC/SB, Spartan 350 w/TCM, Mag-Hytec deep pan, Flo-Pro 5 inch Exhaust, AFE stage 2 with ProDRy, 2.5 Readylift, ZEX Nitrous single stage, BD CAC pipe, ATS 5-star converter, elite egr delete/wastegate, ts mp-8 stacked, Procomp traction bars, locker, CFM plenum, ARP studs. Innovative tunes and Suncoast on the way!
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post #7 of 13 Old 04-25-2010, 09:36 AM Thread Starter
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Elaborate please! I have heard the term but don't know what it means. What is the fix??

08 F-350 CC DRW King Ranch
SCT with river city diesel 450 tune and Delete pipe
S&B intake
access bed cover
F450 front fender flares and wheel spacers
full window tint
viper 5900 remote start
new head gaskets at 70k (pre tuner)
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post #8 of 13 Old 04-25-2010, 12:03 PM
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Traction bars is the fix for axle wrap.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #9 of 13 Old 04-26-2010, 01:48 PM Thread Starter
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So should I take it to the dealer and have it looked at or what? What is actually happened with the axle?

08 F-350 CC DRW King Ranch
SCT with river city diesel 450 tune and Delete pipe
S&B intake
access bed cover
F450 front fender flares and wheel spacers
full window tint
viper 5900 remote start
new head gaskets at 70k (pre tuner)
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post #10 of 13 Old 04-26-2010, 02:03 PM
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I purchased mine with the intake installed and I've have not had any problems with my warranty.

2008 F-250 CCSB
-H&S Mini Maxx
-4" FLO~PRO
-AFE Stage II
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