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Old 12-01-2017, 07:31 AM
6.7w0rkhors3 6.7w0rkhors3 is offline
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Default ‘17 F 350 bucking when towing

Ive been having this issue for a while now. The truck has 87,000 miles and now is starting to buck violently when towing. I have a 5th wheel set up and a 3 car hauler.
It seems to do it on even a slight incline but only when rpms are low, if I smash the gas pedal is gone. Any idea you guys might have an idea what this could be? Thanks


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Old 12-01-2017, 07:53 AM
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Sounds trailer related to me. Have you checked your hitch? Axle alignment?


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Old 12-01-2017, 11:07 AM
6.7w0rkhors3 6.7w0rkhors3 is offline
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Originally Posted by DockRocker View Post
Sounds trailer related to me. Have you checked your hitch? Axle alignment?


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Not i have not but why would it happen and certain low rpm and only uphill. Also, it recently started happening.


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Old 12-01-2017, 12:26 PM
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is the truck stock?

DO you have a way to monitor things like rail pressure?
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Old 12-01-2017, 11:09 PM
6.7w0rkhors3 6.7w0rkhors3 is offline
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Quote:
Originally Posted by Dzchey21 View Post
is the truck stock?



DO you have a way to monitor things like rail pressure?


Is completely stock. No way of tracking anything nor do I know what to look for. I hope you can elaborate, im new to the big diesel world.


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Old 12-06-2017, 09:29 PM
ToddP ToddP is offline
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Torque converter is locking and unlocking at low speeds. I’be never had it happen on a stock truck but in some high power 6.4l tunes it would do when when towing a lite load. It would buck violently
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Old 12-06-2017, 09:32 PM
6.7w0rkhors3 6.7w0rkhors3 is offline
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Torque converter is locking and unlocking at low speeds. I’be never had it happen on a stock truck but in some high power 6.4l tunes it would do when when towing a lite load. It would buck violently


So any idea how this could be fixed ?


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Old 12-06-2017, 09:35 PM
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When I had the issue on my 6.4 the advice I was given was to stop feathering in the throttle and be a little more aggressive. And it worked just had to drive it different than I usually do. But on a bone stock truck, I’d say it might be on its way out.
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Old 12-07-2017, 02:35 AM
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You still have some warranty left. Take it in.


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Old 12-07-2017, 02:45 PM
6.7w0rkhors3 6.7w0rkhors3 is offline
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You still have some warranty left. Take it in.


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They have no idea what it could be, i have taken it and nothing.


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