RE: [Chrysler300] popping

["Laurence G. Johnson" <laurence_g_johnson@xxxx>]

John,
Looks like youv'e pretty well eliminated the carbs from suspicion. This is a 
really unusual problem that deserves a solution so we can all benefit and 
gain new knowledge.

I would look at mechanical things next. What happens when you turn left? The 
steering wheel and attendant shafts and universal rotate to some degree and 
work the gears in the steering box. The power steering pump works harder and 
perhaps kicks on its mount a little bit. The steering shaft rotates to the 
right and shifts the Pitman arm, idler arm, the drag link and tierods move 
and the tires turn. All of these actions could be pulling or otherwise 
disturbing a hose, wire some other mechanical apparatus connected to the 
induction or ignition systems. I'g get someone (I usually get my wife) to 
slowly turn the wheel to the left then back to center while I look at the 
details above. Good luck and PLEASE post on the list server what the 
problem is when you track it down.



> From: John Hertog [mailto:crossram@xxxx]
> Sent: Tuesday, September 24, 2002 12:47 PM
> To: Chrysler 300 Club Listverver
> Subject: [Chrysler300] popping
>
>
> Hi to all,.
>
> I am experiencing a problem which has left me befuddled. Perhaps someone on
> this list can help, might have dealt with it before?
>
> The patient is a 300G convertible in bone stock trim . The problem is
> popping / burping / backfiring thru the carb(s) on left hand turns.
>
> Before y'all say "carb. float adjustement" , let me tell you that I have
> tried THREE different pairs of carbs on this car. I even took a pair of
> carbs off my 300G convert, which does NOT pop when making any kind of turn
> at any speed. I even roadtested my "G" convert. before removing the carbs
> and made many turns at varying speeds before determining that it does not,
> ever, pop back thru the carbs.
>
> The result of all this carb swapping has left me completely mystified. The
> sick car still pops thru the carbs when making a left. Even pops through 
> the
> carbs from my 300G convert, which I know are good. This is a dangerous
> situation as it can pop / backfire thru the carbs so hard at times that it
> will stall ! The popping mostly occurs when giving a little throttle while
> going through the turn - as one would normally drive.
>
> The car runs PEFECTLY otherwise. Good idle. Plenty of power. No 
> accelerator
> pump lag. Runs like a dream at any speed - except when making a left turn
>
> I have taken off the rams, reinstalled with new intake gasket. No
> difference. This feels like a fuel problem, and not electrical. I have
> checked all the wiring, and indeed all the connections to distributor, 
> coil,
> etc.
>
> Help. I don't know where to go from here.
>
> John
>
>
>
>
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