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Re: [GMCnet] Vibration [message #341116 is a reply to message #341115] Mon, 18 February 2019 08:46 Go to previous message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
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You might check for a bad plug wire, or a bad spark plug, particularly if
someone has recently worked on the headers or the ignition system.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Mon, Feb 18, 2019, 6:37 AM John R. Lebetski via Gmclist <
gmclist@list.gmcnet.org wrote:

> Try using a different gear when it happens. That will help determine if
> engine or after engine.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
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