Pinging or knocking is when the fuel isnt burning at a high flash point as
it is combusting with the air. sometimes altitude changes affect this, bad
octane gasoline.water in gas.. The on & off you hear could be the AC
compressor, if your heat is turned on,, my truck does the same thing. and
the idle is a little more on the high side.
----- Original Message -----
From: "Punch" <2punch.crash2000@home.com>
To: <dakota-truck@buffnet.net>
Sent: Tuesday, October 23, 2001 5:03 PM
Subject: DML: what is pinging/knocking?
> hmm, wondering what causes pinging?
> what causes knocking?
>
> what is the difference between the two, and what exactly do they sound
> like????
>
> my truck makes some strange noises while idling, coming from engine
> compartment! sounds like stuff clicking on and off, also rpm gauge goes
> 1000-1200, would this be considered rough idle, and is it set too high?
>
> Punch
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1998 Dakota CC V6, Deep Amethyst, K&N Homebrew Intake,
> Gutter Guard Grills, Dynomax Cat Back Exhaust,
> Autolite 3923's.
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> *In the near future: jet stage 2, billet TB, 180Dg. Thermo, energy
> suspension bushings,
> hotchkis sway bars.
>
>
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