All engines will get some carbon build-up in the combustion chambers after a
few miles, thereby slightly increasing the compression ratio. This could be
what's contributing to your new-found ping. Try running a coupla cans
fuel-injector cleaner thru the tank. I've a feeling that these R/T engines
are a little higher performance, esp. with mods. Remember the old
musclecars? You had to go out and punch 'em every now & then to 'blow the
carbon out', to keep them running good. Just a thought......
'92 Dak CC 2wd 318 3.55
'84 GoldWing Interstate
----- Original Message -----
From: RCPL-VAN CNIWR <RCPL-VAN_CNIWR@van.reid-crowther.com>
To: <dakota-truck@buffnet.net>
Sent: Friday, April 16, 1999 6:19 PM
Subject: DML: Re: Ping, ping, ping
>
> My R/T pings too. Didn't when new, but after about 3000 kms, it
would
> ping under light-medium load below 2000 rpm. 89 octane gas has fixed
> it, but that's getting pricey. I think I'll put in a 180 t-stat. I'm
> hesistant to tell the dealer 'cause I don't want them pulling out 5
> degress and my truck ends up being really slow. Do they do this to
fix
> the problem? Swede?
>
> Chad Niwranski
> 99 R/T CC Black/agate
> Abbotsford, BC
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