RE: [Chrysler300] Ram K Blues

["C Bilter" <cbilter@xxxxxxxxx>]

It sounds like ignition, but do a step by step assessment of fuel and
ignition system components.  It is either or both.  Do not start by assuming
the Pertronix module is at fault, but it could be something in the ignition
system that affects the module. The fact that the car runs at all says to me
that the module itself is not the problem.  Likely suspects are 1) low
voltage to the module (bad connection). Do you have the red wire plumbed
directly into the switched ignition circuit, not to the coil?  You should
connect the red wire to the full 12v switched ignition circuit at the input
to the ballast resistor. Connecting directly to the coil with the ballast
resistor in the circuit will give low voltage, but the unit will fire down
to about 8 volts.  2) bad ground (bad connection) check impedance (ohms)
between the breaker plate in the distributor and the negative battery cable
- should be less than 0.3 ohms or so.  Check black wire connection at the
coil.  Check for a bad coil (check impedance with all wires disconnected,
with coil both hot and cold, and check for oil leaking at the tower).  Also
a bad ignition wire could impact the Pertronix unit.  Do you have solid core
(metallic) ignition wires? If they are old solid core wires they can impact
the Pertronix unit (generally speaking solid core wires are not recommended
for electronic ignitions).   

 

If it is the fuel system - everything from bad gad to vacuum leaks to crud
that got sucked up into one of the carbs - lots of possibilities.  Good luck
on the diagnosis.

 

Carl B

300J

 

  _____  

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of News4ge@xxxxxxx
Sent: Friday, November 23, 2012 7:31 PM
To: Chrysler300@xxxxxxxxxxxxxxx
Subject: [Chrysler300] Ram K Blues

 

  


Hello Group,

I'm hoping someone can help diagnose some strange happenings with my K.

About a half hour into a 2 hour trip a couple weeks ago, the car shut off
while going a steady, smooth 60 mph. It was like the car ran out of gas,
which was not possible. I looked under the hood, saw nothing wrong and
started it up. It ran terribly. After letting it sit for 15 minutes, I
started it again. It ran badly, but I was able to get it going by feathering
the gas and brake. It then ran ok at highway speeds, but it didn't want to
leave stop signs, and it wouldn't idle without giving it some throttle. I
completed the trip and just to try something, I changed the fuel filter.
That didn't seem to help, although I was able to get it the 2 hours home by
doing a lot of feathering. When I got home, it would idle without giving it
throttle, but idled very roughly. 

A week later, I took it to the local Mopar mechanic. It started and idled
ok, but still needed a little feathering at stop signs. When I got it there,
of course it ran fine. He couldn't find anything wrong with it. When I left
the shop it ran well, but it would stumble and cough when stepping on it at
a steady 40 mph.

The latest episode was today/tonight, when I drove the car and it was fine,
until tonight I started it, backed it out of the garage, let it idle a
minute and it died. Then it wouldn't start. 5 minutes later it did start and
I was able to get it back into the garage.

I was thinking it was some kind of fuel problem, because if it was
electrical it seems that it would either run or not run and not have these
weird random symptoms. Now I'm beginning to wonder if it could be the
Pertronix unit malfunctioning. Could this be possible?

Anybody have any ideas?

Thanks in advance,

George Clineman

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