Skip to main content
Gerry | Vanagon
Checking account...
← vanagon.com home · Continue the discussion in the forum
Subject:Re: Spark Plug Wire Shock
From:David McNeely
Date:Sun, 17 May 2020 16:56:25 -0700

Removing a spark plug wire while the engine is running is a very long
standing practice to determine if a cylinder is miss firing.  If you in
fact had the plug boot firmly in hand, well insulated, you should not get a
shock.  Done it many times, taught to do so by a long experienced
professional, my brother.

mcneely

On Sun, May 17, 2020 at 2:15 PM Gene P <olgreywoof@gmail.com> wrote:

> Wait, you did what?  Do you mean you grabbed a spark plug wire and removed
> it while the engine was running?  I think that jolt would be normal, more
> volts than I want in my hand.  You need to have the wires loosened (with
> engine off) and then have something non-conductive to remove them to test
> that way.
>
> From: Jack R
> Sent: Sunday, May 17, 2020 1:45 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Spark Plug Wire Shock
>
> So, I tried pulling
> spark plug wires to see if there was a cylinder missing.  When I pulled the
> #3 wire, I received a jolt!
>