Have you tried the 180 degree thernostat? It will
help remove the pinging on 5.2s. Cheap mod and very
easy to do as well. When you buy the new PCM, you might
have to use the extra (91-93 octane) gas.
GS -
>
> 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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