The only source I was certain had the improved valve springs was the dealer,
so that's where I bought them. I forget how much they were but valve
springs in general are not expensive. While you're in there, you might as
well replace the valve stem oil seals too, they're inexpensive.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.***.net/jerrypb/
"F.D.S." <no.spam@gotya.com> wrote in message
news:QKSdnXGDBe_5bZPcRVn-tw@adelphia.com...
> Thanks Jerry. May I ask where you got the valve springs and how much did
it
> cost you? Or was it the freebies that the company sent you? TIA.
> Fernan
> "Jerry Bransford" <jerrypb@***.net> wrote in message
> news:UyUMc.46$Xn.30@fed1read05...
> > I have extensive experience with this code but relax, there is a way to
> cure
> > it. I replaced literally everything possible, ignition related, trying
to
> > cure my multiple '43' codes, up to three of them at once. Plugs,
wiring,
> > distributor, rotor, ignition coil, etc. Then a Detroit-based Jeep
> engineer
> > contacted me after seeing my multiple posts on this problem and sent me
a
> > bunch of parts for free to try since his engineering department was very
> > curious about it. From that kit, I replaced the fuel injectors, the FI
> > wiring harness, and the entire computer... still no help.
> >
> > Then a local Jeep buddy clued me in to a new TSB (tech service bulletin)
> on
> > the problem. It turns out that during the '96/'97 model year, there was
a
> > bad/weak batch of valve springs causing valve float which caused
cylinder
> > misfires. Replacing my valve springs finally cured the problem. Your
> > dealer can tell you about the TSB.
> >
> > Jerry
> >
> > --
> > --
> > Jerry Bransford
> > PP-ASEL N6TAY
> > See the Geezer Jeep at
> > http://members.***.net/jerrypb/
> > "F.D.S." <no.spam@mail.com> wrote in message
> > news:mOudnS6377yNnJncRVn-sA@adelphia.com...
> > > Hi all! Subject code came up twice. Does that mean I have two
cylinders
> > > misfiring? Any suggestions on what is causing the misfires before I
take
> > it
> > > to a shop? Vehicle is a 1996 Jeep Grand Cherokee I6 40.L 4x4. Mileage
is
> > > 175K. Thanks for your input.
> > > Fernan
> > >
> > >
> >
> >
>
>