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Car stalls, then restarts #1272652
07/23/12 02:03 PM
07/23/12 02:03 PM
Joined: Jun 2012
Posts: 123
Ripley, NY
tcat446 Offline OP
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tcat446  Offline OP
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Ripley, NY
My 73 Cuda 318 will run strong and for no apparent reason stall while driving. If I pull over it will restart and is fine.

Could this be a bad ballast resistor? It is the 4 prong ceramic one on the fire wall. Could it be a bad coil? Replaced the electronic controller a few years back when it did it and that wasn't it. Needed the orange box on it anyway. What do ya think??

Re: Car stalls, then restarts [Re: tcat446] #1272653
07/23/12 04:57 PM
07/23/12 04:57 PM
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Lincoln Nebraska
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RapidRobert Offline
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Quote:

Could this be a bad ballast resistor? What do ya think??


Not the ballast. This is a tough one. This is at speed & not while idling? Cruising or WOT?


live every 24 hour block of time like it's your last day on earth
Re: Car stalls, then restarts [Re: tcat446] #1272654
07/23/12 05:04 PM
07/23/12 05:04 PM
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Posts: 129
Wisconsin
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rbmopar Offline
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I have a similar mopar that exhibited those symptoms a few years ago, except one time it would not restart. I replaced the coil and it has been good ever since. Good luck.

Re: Car stalls, then restarts [Re: tcat446] #1272655
07/23/12 05:24 PM
07/23/12 05:24 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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First determine if it's spark or fuel problem. Use a timing light on one of the spark plug wires when it stalls and crank with a remote starter or get someone to crank the motor and watch for flash from the timing light.(thanks 1 Wild RT) If you have no flash then start swapping parts if it's electric which I kinda doubt, I'm betting it's fuel especially this time of year .

Re: Car stalls, then restarts [Re: RapidRobert] #1272656
07/23/12 05:42 PM
07/23/12 05:42 PM
Joined: Jun 2012
Posts: 123
Ripley, NY
tcat446 Offline OP
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tcat446  Offline OP
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Ripley, NY
Quote:

Quote:

Could this be a bad ballast resistor? What do ya think??


Not the ballast. This is a tough one. This is at speed & not while idling? Cruising or WOT?




Driving right down the road at 55 MPH. Once at about 20 MPH pulling a hill out the end of the driveway.

Re: Car stalls, then restarts [Re: Challenger 1] #1272657
07/23/12 05:44 PM
07/23/12 05:44 PM
Joined: Jun 2012
Posts: 123
Ripley, NY
tcat446 Offline OP
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Quote:

First determine if it's spark or fuel problem. Use a timing light on one of the spark plug wires when it stalls and crank with a remote starter or get someone to crank the motor and watch for flash from the timing light.(thanks 1 Wild RT) If you have no flash then start swapping parts if it's electric which I kinda doubt, I'm betting it's fuel especially this time of year .




When I try to restart its within a few seconds. So by the time I put a light on it, it most likely would have shown spark anyway. On the way to get it inspected today it cut in and out 3 or 4 times. No spitting or sputtering. Just like I shut the key on and off. I think its electrical.

Re: Car stalls, then restarts [Re: tcat446] #1272658
07/23/12 06:01 PM
07/23/12 06:01 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:

Quote:

First determine if it's spark or fuel problem. Use a timing light on one of the spark plug wires when it stalls and crank with a remote starter or get someone to crank the motor and watch for flash from the timing light.(thanks 1 Wild RT) If you have no flash then start swapping parts if it's electric which I kinda doubt, I'm betting it's fuel especially this time of year .




When I try to restart its within a few seconds. So by the time I put a light on it, it most likely would have shown spark anyway. On the way to get it inspected today it cut in and out 3 or 4 times. No spitting or sputtering. Just like I shut the key on and off. I think its electrical.




Got to be sure one way or the other before you can fix it.

Got a fuel filter in front of the fuel pump?

Mine did it earlier this summer and I swore it was electrical because mine did it just like yours, like someone flipped a switch.

I replaced the ballast the first time it happened because I had one with me along with a ECU and voltage reg.(because it was easiest without any tools in a parking lot) It fired right up and I thought cool it fixed it, oh well I guess 20 years isn't bad for one to last?
Then it did it again the next day when it was real hot out.
After more dicking with it, it was fuel related and not electric, if only I would have looked closer the first time.
My problem was the short piece of hose between the sending unit and fuel line, it was kinked and over half way collasped restricking my mechanical pump of fuel. My problems happened on a 95 degree day which we have had quite a few. If it didn't get hot I bet I would not notice until it started to leak and then the pump won't pump at all.
I also think the inside of my rubber fuel line was coming apart, it was about 12 years old and needed to be replaced.

I was so sure I fixed it I loaded it on a trailer and drove the thing in North Dakota, Sacamento and Wendover NV in real high temps and it ran flawless. Even at real hi speeds on the bonneville salt.

But I got to be honest, the wife didn't want to go on the first few drives with me for fear of it quiting on me someplace strange out of town, her loss. lol That's my story.

Re: Car stalls, then restarts [Re: Challenger 1] #1272659
07/23/12 06:05 PM
07/23/12 06:05 PM
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Posts: 198
Staten Island, NY
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Theorio1025 Offline
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have you checked the fusible link on the starter relay?

Re: Car stalls, then restarts [Re: Challenger 1] #1272660
07/23/12 06:08 PM
07/23/12 06:08 PM
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zrxkawboy Offline
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My car did the same thing last year, and it was the ECU (MP orange box, installed in about '94 or '95). Also on the "suspect" list is the pickup coil.


It's Swifty! Swifty, you toad sucker!
Re: Car stalls, then restarts [Re: Theorio1025] #1272661
07/23/12 06:12 PM
07/23/12 06:12 PM
Joined: Jun 2012
Posts: 123
Ripley, NY
tcat446 Offline OP
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Quote:

have you checked the fusible link on the starter relay?




No, but now that you mention it, I will.

Re: Car stalls, then restarts [Re: Challenger 1] #1272662
07/23/12 06:12 PM
07/23/12 06:12 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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My car would run flawless for like 10-15 minutes in these 90+ degree days, I let it idle in the driveway with a timing light and remote starter switch attached. As soon as it stalled after a good 15 or more minutes I spun the motor over with the remote and squeezed the timing light trigger, oh sh!t flash but no fire! It's fuel!!

you might try it like that to help figure it out.
Again that was advise from 1 Wild RT and it sure helped me.

Re: Car stalls, then restarts [Re: zrxkawboy] #1272663
07/23/12 06:13 PM
07/23/12 06:13 PM
Joined: Jun 2012
Posts: 123
Ripley, NY
tcat446 Offline OP
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Quote:

My car did the same thing last year, and it was the ECU (MP orange box, installed in about '94 or '95). Also on the "suspect" list is the pickup coil.




Already replaced that and it still does it.

Re: Car stalls, then restarts [Re: Challenger 1] #1272664
07/23/12 06:14 PM
07/23/12 06:14 PM
Joined: Jun 2012
Posts: 123
Ripley, NY
tcat446 Offline OP
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tcat446  Offline OP
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Quote:

My car would run flawless for like 10-15 minutes in these 90+ degree days, I let it idle in the driveway with a timing light and remote starter switch attached. As soon as it stalled after a good 15 or more minutes I spun the motor over with the remote and squezzed the timing light triger, oh sh!t flash but no fire! It's fuel!! you might try it like that to help figure it out.
Again that was advise from 1 Wild RT and it sure helped me.




Will check it out. Thanks.

Re: Car stalls, then restarts [Re: tcat446] #1272665
07/23/12 06:15 PM
07/23/12 06:15 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:

Quote:

have you checked the fusible link on the starter relay?




No, but now that you mention it, I will.




Wouldn't the fusable link kill the whole car if it went bad?

Re: Car stalls, then restarts [Re: Challenger 1] #1272666
07/23/12 06:19 PM
07/23/12 06:19 PM
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Ohm the pickup coil, should be between 300-550 ohms. Easy to do with no tools except the multimeter. You should check it hot and cold, it's easy to trouble shoot imo.

Re: Car stalls, then restarts [Re: Challenger 1] #1272667
07/23/12 06:21 PM
07/23/12 06:21 PM
Joined: Jun 2012
Posts: 123
Ripley, NY
tcat446 Offline OP
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Just now noticed oil coming out of the coil where the high tension wire connects.

Re: Car stalls, then restarts [Re: tcat446] #1272668
07/23/12 07:01 PM
07/23/12 07:01 PM
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Posts: 68
Detroit, MI
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RawnDart Offline
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The coil could be the problem, you can check with an ohm meter. Also check the connector where the ignition switch plugs into the dash harness on the steering column.

I was having the exact same issue as you, and I found the pin burned on the red wire.

Re: Car stalls, then restarts [Re: Challenger 1] #1272669
07/23/12 07:24 PM
07/23/12 07:24 PM
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Lincoln Nebraska
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RapidRobert Offline
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Quote:

Wouldn't the fusable link kill the whole car if it went bad?


Not saying it's the FL but at speed the alt would still feed everything in thru its side of the bulkhead EDIT I would tighten the screw in the coil tower & with it cutting out clean I'm thinking electrical. I'd seperate the bulkhead halves & clean the male terminals with a small metal bristle brush & clean the female halves with a spare male brass terminal (NAPA 725147). You've replaced the pickup you've replaced the ECU & though orange boxes are problematic it did not fix the problem at the time. That leaves the coil & though I hate shotgunning parts at a problem it'd be nice if you could swap a coil off of another car for a quick test. You have more than 1 Mopar right

Last edited by RapidRobert; 07/23/12 07:38 PM.

live every 24 hour block of time like it's your last day on earth
Re: Car stalls, then restarts [Re: RapidRobert] #1272670
07/23/12 07:33 PM
07/23/12 07:33 PM
Joined: Jun 2012
Posts: 123
Ripley, NY
tcat446 Offline OP
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tcat446  Offline OP
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Ripley, NY
Quote:

Quote:

Wouldn't the fusable link kill the whole car if it went bad?


Not saying it's the FL but at speed the alt would still feed everything in thru its side of the bulkhead




FL?? Field Lead? More of a mechanic than an electrician. Lol.

Re: Car stalls, then restarts [Re: Challenger 1] #1272671
07/23/12 07:34 PM
07/23/12 07:34 PM
Joined: Jun 2012
Posts: 123
Ripley, NY
tcat446 Offline OP
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tcat446  Offline OP
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Quote:

Ohm the pickup coil, should be between 300-550 ohms. Easy to do with no tools except the multimeter. You should check it hot and cold, it's easy to trouble shoot imo.




The pickup coil measures .295 at slightly above room temp.

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