Fuel Index - Lower quality fuel will cause pinging, poor performance, and
rough idle (applies to all 3.7/3.9/4.7/5.2/5.9L Magnum engines). I've seen
it in the shop and experienced it for myself as well.
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of
Gmblows@aol.com
Sent: Saturday, January 10, 2004 9:12 AM
To: dakota-truck@dakota-truck.net
Subject: Re: DML: RE: Grr...still pinging
I can remember two TSB's related to pinging.
The belly pan, and the spark plug wire re-route.
> Look at the fuel quality and brand you're using first (yes, there's an
> actual TSB on fuel index and quality for these engines). Try changing
> fuel for one tank-ful and see what happens.
>
> - Bernd
>
> -----Original Message-----
> From: owner-dakota-truck@bent.twistedbits.net
> [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Travis
> Bailey
> Sent: Saturday, January 10, 2004 3:04 AM
> To: dakota-truck@dakota-truck.net
> Subject: DML: Grr...still pinging
>
>
>
> I was a busy individual this morning, afternoon, evening and night,
> ran a
> can of the GM top end cleaner to clean up the combustion chambers, did
the
> intake gaskets at a casual pace, 180 'stat, and a set of 3923's. Pinging
> has nearly gone away...nearly. Consistantly at WOT in 3rd I'll get some
> ping still, from time to time in second as well. Not nearly what it was
but
>
> it's not gone entirely. This is on mid-grade (89 octane) gas as
> well.
Does
>
> this mean I might benefit from going another step cooler in plugs,
> and if
so
>
> would that be 3922 or 3924? Or should I try some premium first?
>
This archive was generated by hypermail 2b29 : Sun Feb 01 2004 - 16:29:49 EST