The fact the gauges go off is right .. Main Ign volts go away at crank by design . So car (coil) is now being fed 12 v , anyway , probably by the 2nd wire on coil side of ballast. Other wire there on that end effectively goes directly to coil , gets 12v at crank --feeds it power only on crank.
Ballast not in circuit at start . Ballast fed by normal ign wire at other end , after start . So probably not ballast related . Bad ballast stops it , except on crank . . That wire i describe feeds power directly to coil so it can start with no volts on normal ign wire .
Wish i were there!
If this is right , that crank only power wire which I think goes to ign switch is now in this car shorted to 12 v ....or ign switch bad / miswired, short on back of it . On some mopar it goes instead to start relay , not key ... Gets 12 v there instead , only when you start car . I cannot remember which way F is but same thing functionally . (In Europe now - no access to print )
Of course if all this working , and somehow ign stays 12 with key off , another thing to check . Alternator wiring still stock ? If alternator harness to regulator or wiring / regulator screwed up , it can keep generating 12v into ign by backfeeding into ign at regulator with key off . Pull field wire off alternator and start it to test that . Inspect carefully that harness .
If described wire goes to starter relay at battery , miswired or shorted right there . Miswires common there . Two kinds of starter relay ... If this type = one more terminal just for this wire . .. Looks the same as common wrong relay from Dodge trucks . But no place to put this wire ! People "'try" other places. See service book, look carefully at drawing . it shows shapes of connections on relay face and wires / colors and # of wires . Match up .
Starter acting funky may be related.
Swapped S wires at key does strange things .. See back of key drawing . Foam not related to this .. I do not think .
If 12 v all the time ( short ) independent of key , on this wire it would kill battery . If 12 v by mistake says ign switch has to be on , on this wire all the time or bad ? ( =start wire to coil live all the time , switch on or off ) . Hope this helps . Very confusing circuiit, if not aware that ign is always normally off at crank ---can drive you nuts . ( learned hard way ) Hope he knows mopars ! Let me know !
Why they do this is to boost start ign volts . ( no ballast drop) Cannot just connect start wire to feed to coil, as coil ign 12 v all the time after the start would backfeed and pull in starter all the time . So two start wires . Not coneected . One pulls in start relay , other feeds coil only at start . Specific places on switch if this type . You release switch ign 12 comes on engine keeps running through ballast . And alternator field turned on !!
Good luck , John
On Wednesday, July 8, 2015, <
sbeard2@xxxxxxxxxxxxxxx> wrote:
Hi John,
Sorry for my lateness in getting back to you. Been trying to get things
done outside and trying to work on the car problem.
Rechecked SRS wiring and is correct. I notice that when you move the key to
the off position while car is running, Temp, gas, gauges shut off?
Checked ballast resister and looks good? Don’t know what a bad Ballast
looks like. Spring looks good, contacts do wiggle. Could it be the little can
resister?
Checked wiring to and from coil looks good.Put a new coil in and going to
install another new ignition switch. Got a new Neutral starter switch coming.
When you start the car, it clicks as if the solinoid is acting up but my starter
motor guy double checked starter. Not the solinoid. Installed new turn signal
acuator but wiring is pretty straight forward. can’t screw that up. Does the
ignition switch need a foam gasket? The original switch had one?
Got a guy coming over tomorrow to help solve the problem. Will keep
you in touch.
Really Appreciate your help.
Steve
Sent: Thursday, July 02, 2015 5:19 PM
Subject: Re: [Chrysler300] 300 F won't shut off
Wiring of the two S wires at starter switch can get crossed . Or other
wires . Usually because ign switch area wires changed to push on trrminals due
to failed ign sw plug on .Complicated what happens there .normal Ign and
acc power goes away at start , (!!) kills radio heater etc --but power to start
car , ign power then goes into coil end of ballast R via one of those S wires
while key is held . Regular ign wire is dead at start . Other one starts starter
relay . If coil being fed incorrectly 12v via that coil end ballast wire , Will
not shut off .
Maybe this helps you ?
Sent from my iPhone
If they happened
together, it sounds like you are powering the Ignition system thru the
clock.
Unhook the clock
and see if the car will suet off then.
Ray
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