It might be the timing chain.. I have been through 2 so far, and I am
going for another tomorrow. It sounds a lot like someone with a piece
of metal smacking the engine. The dealer has diagnosed it as the
timing chain, and since it is under warranty they have agreed to
replace it. Mine usually starts making the noice either on take off,
or at steady cruising speed.
Dan
===
94 Dakota Sport V6 3.21 5spd (currently stock :( )
---David Brown <dbrown@mh1.mcis.uchicago.edu> wrote:
>
> >I notice, only when dead cold, first thing in AM, a LOT of engine
> >fan noise, and the shift points are way up, even under very light
load.
> >(I don't belive in gooseing an engine till it's warm) After 2-3
min,
> >the fan/air noise settles down. Almost like the thermal clutch
> >on the fan works backwards. Not an exhaust sound on mine.
> > Mike
> >
> Yeah, I've noticed the same thing. Kinda hard to tell from the
drivers seat
> exactly what it is (fan or exhaust or even the cat). I've only
noticed it
> when the engine is cold, but it doesn't do it every time. BTW, mine
is a V6
> so it's not just the V8s.
>
> Mike Crumley mcrumley@airmail.net
> 97 Dakota Regular Cab Short Bed
> --
> My '96 has had a pinging noise that shows up during acceleration, no
matter how
> hard or easy, since I bought it. There is less with 92 octane gas,
so I use
> that. The truck just turned 5,000 miles, and the dealer tech said it
might be
> that the exhaust gaskets really seal and last, but the engine might
not be
> broken in, or it could be timing chain noise. Well, my friends '98
Ram 5.9
> doesn't do it. He said there is a TSB on the 3.9s for detonation,
but not for
> the 5.2s. Strange, they are basically the same except for 2
cylinders. I'll have
> to take it in on a day off. It seems to be getting a little less,
but I might
> just be getting used to it. I'll pass on anything I find out.
> ----------
> David Brown Mailto:dbrown@mh1.mcis.uchicago.edu
>
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