Only performance mods are Mopar headers, a high flow Carsound 3" cat and a 3
in 2X2.5 out Dynomax and a open air cleaner all which have been on the truck
for years without problems until recently. I wondered about a fuel filter
until I found the filter in Gen 3 daks is not replacable and part of the
pump in tank assembly and cost several hundred dollars to replace.
----- Original Message -----
From: "ScSilverdak" <scsilverdak@hotmail.com>
To: <dakota-truck@dakota-truck.net>
Sent: Monday, December 09, 2002 1:42 AM
Subject: Re: DML: Re: severe detonation problem
>
> A lean condition could result in detonation due to lack of fuel, a problem
> could exist with the fuel pressure or with fuel delivery (ie: fuel pump
> having problems with fuel suction from the tank, a crushed fuel line also)
> Has the truck had any performance mods that could make more of a demand on
> fuel requirements?
>
> Ron-
> '01 Dakota Sport 3.9 Supercharged
> website: http://www.scsilverdak.com
> e-mail: scsilverdak@hotmail.com
>
> ----- Original Message -----
> From: "Jim Miller WB5OXQ" <wb5oxq@grandecom.net>
> To: <dakota-truck@dakota-truck.net>
> Sent: Sunday, December 08, 2002 12:37 PM
> Subject: Re: DML: Re: severe detonation problem
>
>
> >
> > Plugs are new. Plugs that came out having 30k on them looked good. I
> fear
> > a lean condition and I am running mid grade now.
> > ----- Original Message -----
> > From: "Terrible Tom" <SilverEightynine@earthlink.net>
> > To: <dakota-truck-moderator@bent.twistedbits.net>
> > Sent: Sunday, December 08, 2002 11:24 PM
> > Subject: Re: DML: Re: severe detonation problem
> >
> >
> > >
> > > I would try burning premium grade and I would also replace the O2
> > > sensors. If they have
> > > gone bad - it very well could cause the rich conditions. How new are
> > > your plugs? Might want to pull them to see if the electrodes are
worn.
> > > Running rich will cause a plug to wear out faster.
> > >
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Jim Miller WB5OXQ <wb5oxq@grandecom.net>
> > > > To: dakota-truck@dakota-truck.net <dakota-truck@dakota-truck.net>
> > > > Date: Sunday, December 08, 2002 3:56 PM
> > > > Subject: DML: severe detonation problem
> > > >
> > > >
> > > >
> > > >>Just over the past 3 or 4 months my 99 R/T has developed a severe
> > > >
> > > > detonation
> > > >
> > > >>problem especially at full throttle but noticable even on the cruise
> > > >
> > > > control
> > > >
> > > >>pulling a slight incline. I have changed nothing that should cause
> the
> > > >>problem over the past 4 years. the truck has 49k miles on it. I
> > checked
> > > >>inside the t'body to look into the manifold and it is very clean so
I
> > dont
> > > >>suspect the belly pan gasket. I have tried techron fuel injector
> > cleaner
> > > >
> > > > as
> > > >
> > > >>recommended by a local garage owner that specializes in tune ups and
I
> > am
> > > >>running 89 octane fuel but that has not helped. I hesitate to take
it
> > to a
> > > >>dealer because I am afraid all they know to do is retard the timing
> > enough
> > > >>to stop the knocking and I suspect that will take a big retard as
bad
> as
> > > >
> > > > the
> > > >
> > > >>knock is. I know that will hurt mileage and performance a lot and
> since
> > > >>timing is ecm controlled it should not have gotten out of
adjustment.
> I
> > > >>wonder if low fuel injector pressure could be the problem? I have
no
> > way
> > > >>to check this. I do not believe there are any vacuum leaks either.
I
> > am open
> > > >>for suggestions because right now I have to drive very gently to
avoid
> > > >>knocking. Any help would be greatly appreciated. I may have to
make
> a
> > trip to Pflugerivlle.
> > >
> > >
> > >
> > > --
> > >
> >
>
> --------------------------------------------------------------------------
> > --------------
> > > Terrible Tom
> > >
> > > "It's a living thing... It breathes, it eats, ...and it hates..."
> > >
> > > Silver '89 Reg Cab, V6, Auto, 8 footer, 4x2
> > > Silver '89 Reg Cab, V6, Auto, 8 footer, 4x4 w plow - (aka Granpa)
> > >
> > > AIM Screen name: SilverEightynine
> > > Yahoo Messenger: SilverEightynine
> > >
> > > DML Profile URL:
> > > http://www.twistedbits.net/WWWProfile/dakota/LkxxVw49jp7dU/
> > >
> > >
> > >
> >
>
>
>
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