Ewwa44

NWI Denali Do you happen to have the harness part number they replaced? or a pic of the location it was rubbing at? This is driving me crazy!!

Well I had an update call today from the dealer stating that gm thinks it's no big deal. I call bs!!! How is it not a big deal when all you need to do is Google search silverado shake and tons of links pop up and videos. We all must have no idea what we are taking about. So they want to run another picometer test and send it to gm. Guess who doesn't have thier truck? This guy!!! Has anyone towed a heavy load with the shake? Does it shake more? I'm starting to wish I never bought this truck.

What is a 3rd order vibration? I don't understand why they can't fix this crap.

So I have a 2015 1500 5.3 with 3.08 rear and the vibration issue at around 70mph. My truck has been in the shop for a week. They have done the road force balance and still vibrating. I think it's a timing or program issue do to the fact if I let off the gas it seems to almost go away then as soon as I touch the gas it shakes they said they talked with gm and the want to do a picometer!?! Test I dont know what that is does anyone know. I searched and the only thing I seen on the interwebs is a electric picometer test and a picometer is a unit of measurement.