Re: Spark Plugs

From: tkoth (tkoth@cox.net)
Date: Sun Jan 05 2003 - 09:56:55 EST


DOH!!! I saw this response in the digest after I sent the
last one. Plus I just now remember that I didn't change the
subject before sending. Sorry!!!
I do not have the plugs that came out as I changed them over
30K miles ago. When I got them the guy at Napa said the
Autolite APP5224 was the manufacturer recommended direct
replacement. We had a brief discussion regarding plat and
non-plat and he said that the platinum was what was
recommended. I think the concensus on the list at the time
was that the platinum plugs allow you to get the advertised
100K miles between services.

I thought what I took out were platinums but I can't be sure
now.
The sticker under the hood says RC12MCC4. I don't know if
that is a plat plug or not. The owners manual says to refer
to the sticker under the hood.

Is there anyone with a FSM that can verify this? Can anyone
explain WHY a platinum plug would be bad for the 4.7 ?? And
if there is some reason that the platinum plug is bad, then
wouldn't all the other dip-stick one-off plugs with multiple
electrodes and tungsten encrusted kiniblin' pins be just as
bad???

Not tryin to attack anyone here... I just need to know if I
have to be buyin' plugs SOON as these have been in mine for
3 years now..... But it still runs great!

> ------------------------------
>
> Date: Sat, 4 Jan 2003 13:59:54 -0500
> From: "Jeff Durling" <jdurling@directvinternet.com>
> Subject: DML: Re: Re: Spark Plugs
>
> I would, if you still have them, double check that the
original plugs were
> indeed platinum. You are the first I have heard who had
them. I would also
> double check the manual. Again, you are the first that I
have heard. Not
> saying you are wrong but everything Chrysler has done to
my knowledge is to
> warn against using platinum plugs. I don't have it
anymore, but I remember
> the '01 FSM stating to not use platinum plugs in it
either.
>
> Steve, I read your post and I understand where you are
coming form but I
> think they mean it for what it will do to the coils over
time. I don't think
> the problem will happen in a short period of time but over
several thousand
> miles. My guess is 20k or more. Didn't you only have your
dak for a short
> time until it was totalled? If so, that may be why it was
never an issue.
>
> All I know is if you are not sure call Chrysler and ask.
Since I don't that
> much about coil on plug I have to trust them here. BTW,
guy I work with has
> the trailblazer with the straight six in it. It also has
coil on plug and GM
> has the same attitude as Chrysler does about the platinum
plugs to not use
> them.
>
> Jeff Durling
> - ----- Original Message -----
> From: "tkoth" <tkoth@cox.net>
> To: <dakota-truck@dakota-truck.net>
> Sent: Saturday, January 04, 2003 10:00 AM
> Subject: DML: Re: Spark Plugs
>
>
> >
> > Ok... now this is new to me. ( I was off the list for
almost
> > 2 years fom early 2001 to a couple months ago)
> > I have a 2000 4.7 4x4 and I switched to 5224 platinums
at
> > about 9k miles. They have been fine so far. The factory
> > plugs were platinum and the owners manual recommends
> > platinum. So what is this I now hear that they can cause
> > problems? I must have missed a thread. My truck now has
40K
> > on it and it still runs great. And I live in Phoenix...
so
> > there's no shortage of heat out here... Someone
enlighten
> > me please!!!
> >
> > Tim
> > 2K 4x4 CC 4.7
>



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