DANGER! DANGER! Usually, pinging is caused by advanced timing. Unless the
timing is *way* off, I think you've been mis-diagnosed. Your truck should
still be under warantee, have the dealer solve the pinging before you do any
mods. The performance PCM advances the timing which will make the pinging
worse. The truck should not ping on 87 octane. What transmission does it
have?
Dr. Pat
----------
>From: "Smith, Don W, SITS" <donwsmith@att.com>
>To: "'dakota-truck@buffnet.net'" <dakota-truck@buffnet.net>
>Subject: RE: DML: !!! (V)OPAR PCM's Read or Be Sorry !!!
>Date: Thu, Sep 2, 1999, 12:38 PM
>
> I am ordering the PCM from John, but have one question.]
>
> My 99 4X4 5.2 pings like a diesel. After trying everything from rerouting
> the wires
> to Champion truck plugs to new Jacobs wires I have been told that the
> problem
> is that my computer is retarding my timing to much. Will this new PCM
> advance the timing as well as the other tweaks it does to increase HP?
> I wouldn't mind spend the $$ if I could get rid of that pinging.
> Don
> 99 4X4 CC SLT 5.2 L pinger
>
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