jerking under load!!??

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Aug 23, 2006 | 02:32 PM

pawnmaster

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Joined: Dec 2005

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Jerking under load!!??

I have an '03 6.0 diesel and have been pulling a 31ft 5th wheel about 10,000lbs. When accelerating up slight hill and no down shift the truck sputters and shakes like a backfire jerk and has no power. Ford finds nothing as usual and wants to test drive with load but I wanted some info here first. The noises come from driver side like a blow valve and kinda groins then shutters/jerks repeatedly until I either downshift or level off. I can duplicate this even when on level ground by gently accelerating and not down shifting(torqueshift auto). I have had the reflash done about 4-5 months ago. Also notice black smoke when hard accelerating under load. Truck actually lost speed when climbing very small grade, 1-2% 2 miles long! Any help would be great. Thanks Dan.

Last edited by pawnmaster; Aug 23, 2006 at 03:06 PM. Reason: spelling....

Aug 24, 2006 | 02:26 AM

Monsta

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Joined: Oct 2001

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From: Washington State

Don't know too much about the problem but just wanted to send this to the top of the forum for you.

Welcome to FTE! Hope your service department is able to help you out. You know those 6.0 are kinda known for going through turbos. Maybe that could be the culprit?

Aug 24, 2006 | 06:33 AM

IB Tim

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From: 3rd Rock

...Moved to 6oh...

Aug 24, 2006 | 07:25 AM

vloney

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From: waynesville, mo.

Look at the thread a few down"popping sound". I think you have some stuck turbo vanes.