Bucking at 75-80mph - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 12 (permalink) Old 02-25-2009, 11:13 AM Thread Starter
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Bucking at 75-80mph

I was wondering if anyone else has experience a buck/jerk while traveling between 75 and 80mph.
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post #2 of 12 (permalink) Old 02-25-2009, 04:03 PM
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Are you tuned or stock? Dpf on or off?

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post #3 of 12 (permalink) Old 02-25-2009, 07:08 PM Thread Starter
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All stock
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post #4 of 12 (permalink) Old 02-25-2009, 07:35 PM
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Ive felt the same exact shuttering type action anytime I have the truck over 70mph and get on and off the pedal. I am just getting tired of taking the truck to the dealer and complaining. Im waiting for a new intercooler to be installed. That may help, but who knows.

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post #5 of 12 (permalink) Old 02-25-2009, 07:36 PM
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how hard is it? with 35's going over 70 my truck will shake and shimmy. But its not really a jerk or buck.

Colton

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post #6 of 12 (permalink) Old 02-25-2009, 07:57 PM
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milage?

Lets just say not quite stock.
Slower than some. Faster than most.
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post #7 of 12 (permalink) Old 02-25-2009, 09:07 PM
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Mine does it about 65-70 it is the same as some has described as surging. Did it stock and also tuned. Dealer couldn't find anything to be honest tried of the truck in the shop so I am just dealing with it.
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post #8 of 12 (permalink) Old 02-26-2009, 01:05 AM Thread Starter
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Almost 7000mi, been doing it since I bought it for the most part.

Also, its not really a wobble or shake, its a surge almost as if I were to let off then get back on and let off again.....

However, the RPM's don't really fluctuate when this is happening but at the same time its not an extreme surge.
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post #9 of 12 (permalink) Old 02-26-2009, 01:40 AM
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go out for a drive and bag the snot out of it. Sounds like a tranny prob. Do you baby the truck? If so. the tranny is setting itself up to run under lighter loads so the line pressure might be a little on the low side. Driving it hard for about 50miles should tighten it up.

Lets just say not quite stock.
Slower than some. Faster than most.
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post #10 of 12 (permalink) Old 02-26-2009, 02:18 AM Thread Starter
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I'll try that out for the fun factor, but I usually don't baby the truck.
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