[Diy_efi] vortec engine piston noise?

[Programmer]

Scott--interesting that you bring this up. The "Dodge problem" doesn't go
away after a reflash. Sure--the ping is gone, but the power problem remains.
These things also seem to get horrible economy after a reflash--and they
just can't seem to get the transmissions to shift correctly, either. Only
solution I've found so far is an add-on spark controller.

Lyndon

----- Original Message -----
From: "J. Creech" <jcreech1 at olemac.net>
To: <Diy_efi at diy-efi.org>
Sent: Friday, May 24, 2002 11:42 AM
Subject: Re: [Diy_efi] vortec engine piston noise?


> > My point is that if GM is going to build these trucks, they
> > should do it right.  They have been in business for enough years, they
> > know what people want and what they don't want.  They know what makes
> > an engine last and what doesn't.  If they can't make a 300 hp engine
> > and make it quiet, then they shouldn't put it into a vehicle that
> > they're designing to be a big, quiet car.  But the thing is, other
> > companies are doing it and not having problems.
> >
> > Shannen
> >
>
> Well, I wouldn't exactly say they're NOT having problems. Anyone with a
'97-'02 Dodge Ram
> with either the 5.2(318) or 5.9(360) Magnum might have an argument with
you. Not for
> reliability issues, but ping. Some have claims that it's so bad, that the
resulting
> detonation has damaged the engine (burned valves, cracked rings, pistons).
I have a '99
> and it pings under part-throttle load, such as pulling 2% or greater
grades.
>
> The only thing DC says will fix it, is a Re-Flash of the computer, and DC
notes that you
> WILL lose power and mileage (god forbid the mileage!). Plus, once you have
it Flashed, DC
> WILL NOT put it back if you don't like it. Tough, they say. From talking
to people that
> have had the PCM Re-Flashed, my ping isn't that bad after all.
>
> Before I did a little research (and before DC came up with their
"solution") I took it in
> to my dealer and complained about it. I was told by the service-snot that
it was "normal".
> I corrected him, and replied "You mean it's COMMON? For a fuel-injected
engine to ping
> under light loading, is not NORMAL." He was like "Uh, yeah, I mean common,
blah, blah,
> blah..." I walked out before he even finished talking. Probably suited him
just fine.
>
> Don't get me wrong, I love my Ram. I've just come to ignore the ping, but
I'm unlikely to
> buy another DC product.
>
> I'm told (hearsay alert!) that Ford has had a similar problem with their
light-duty trucks
> too.
>
> 5-Star Dealer my Ass.....
>
> -Scott
>
>
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