Re: [Chrysler300] Pop goes the G

["Warren Anderson" <wranderson@xxxxxxxxxxxxx>]

  The ignition primary feed is through the ignition switch. Voltage regulator uses power from same circuit. Voltage drop (AKA high resistance) in the circuit will result in overcharge. Complete drop out (infinite ohms) of the circuit will kill the ignition and everythng else on the switched ignition circuit.

  Chrysler manuals I have from the period have detailed instructions as to checking this very important circuit. Excellent learning experience as to how to load test electrical circuits. Basically, ohmmeters absolutely do not work. Voltage drop testing will work as the manual outlines.

  There are many professionals out there right now repairing automobiles that have no clue when it comes to voltage drop testing  So, watch out. If a professional grabs an ohmmeter to work on your car, run far away. If there are a number of clip leads involved with at least one good digital volt meter, you just might be on the home track.

  My experience has been that loss of ignition will cause your symptoms. Also, even better, most times a muffler is split. Of course, I have seen loss of power and a short circuit cause the boom problem 

  And, yes, for sure, your overcharge and boom could very well be related.

  Warren Anderson
  Sedona,AZ 




  Howdy,

  Just took the G out to get some chili dogs.I had to jump the car as the battery wasn't strong enough to start it (been 5 or 6 weeks since I had it out).

  On the way home, while on the freeway going about 70 or 75 MPH, the engine appeared to die. I was cruising, not accelerating or decelerating. The engine noise went away and I could tell there was now power as I was modulating the gas pedal lightly, the tach was under 1000 rpm. This lasted for about 3 or 4 seconds, then POP!!!! out the tailpipes. It was loud, I'm pretty sure the guy beside me soiled his trousers (as I almost did myself). The loud pop was the result of raw fuel in the exhaust system.

  Anyways, after the pop, the engine came back to life. It drove all the way home with no further issues. Chili dogs were yummie.

  Last time I had the car out, we did an extended slow cruise along a river. 2 or 3 miles at 15 mph or less. It was a fairly warm day. Towards the end of the slow cruise, the same thing happened, twice, where the engine lost power, but didn't shut off. After modulating the gas a few times, it would wake back up. Just no popping, but that was due to low rpm cruise and not getting the chance to fill exhaust system with raw fuel.

  Idle has ben higher than normal, I need to look at the carbs, just haven't had a chance. I need to see if they are dumping raw fuel into engine.

  What do you think? Any chance this could be related to my overcharging issue?

  Thanks,

  Richard Osborne



  

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