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Go Back   Chevy and GMC Duramax Diesel Forum > Chevy / GMC Duramax 06-07.5 LBZ & LLY Forums > 06-07.5 LBZ & LLY Duramax Powertrain
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06-07.5 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

 
       

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Old 07-30-2007, 10:21 AM   eBay Motors   #1 (permalink)
Fulltilt3
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Vibration at 65mph ???

This is my first duramax and so far at 950 miles I am very very pleased. 17.03 mpg on my second tank. I have a couple of issues that have materialized just after 500 miles. I can feel a resonating vibration in the go pedal and the floor board. My wife can even feel it in the passenger side.

It is not a shudder type vibration as it feels more like a humming. I really am having trouble describing it.

I am hoping someone will be able to tell me that it is common and it will go away, or here is how to fix it.

It comes in between 60 and 70 either on the way up or down.

Any thoughts or places to start???

Thanks!!
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Old 07-30-2007, 10:54 AM   eBay Motors   #2 (permalink)
TYREBOYZ_DEMAXIN
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welcome to the forum..this not the first gm vehicle with this problem straight from the factory but it is a easy fix..take the truck to a tire shop that you trust and have them rotate and rebalance the tires..hope this makes sense
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05 LLY Chevy LS E/C L/B DRW my older brothers truck now
2006 LBZ GMC SLE C/C S/B,sold the truck to my dad for a business truck
My Truck now,1987 Chevy 2500 350 tweaked,6" SuperLift,350 V8 bored 60 over,Elderbrock headers Cam and Titanium Rockers,750 Twin Pumped Holley Carb and some other goodies.crank dynos over 400HP.
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Old 06-22-2008, 02:43 PM   eBay Motors   #3 (permalink)
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I have noticed the same thing with my new 07' LBZ. I picked up a load of sheet rock from Home Depot back in Feb. and I could really notice it then when I would accelerate and decelerate. Did getting the tires balanced help.
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Old 06-22-2008, 05:01 PM   eBay Motors   #4 (permalink)
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it happened to me, but i looked and i accendentally hit the 4 wheel drive button haha
i was goin around 65 and it just vibrates the whole front of the truck
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