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Old 03-28-2004, 07:25 AM
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Mopar stalling at 55mph

My 64 Dodge died while cruising at highway speed. It just sort of sputtered out like it ran out of gas. I pulled to the shoulder and looked under the hood. The car has an electric fuel pump and a Holley carb. The pump runs and I had a good squirt at the nozzles. Got back in and it fired right up. 1 minute down the road and it does it again! Back on the road, and it does it a 3rd time, but this time it won't start. It had fuel but no spark. Flat bed tow home.
The car is equipped with a mopar electronic Dist. , MSD box, and MSD coil. I checked the MSD box per MSD trouble shooting guide and it's ok. I did a resistance test on the Coil pick up in the Dist and it's good too. The carbon button in the Dist cap was kind of chipped and worn so I replaced it. I tried to start it and it fired right up!
I don't think that the Dist cap was the problem but the car starts and runs now. I don't want another towing bill and I don't have a lot of confidence in the car. What do you guys think the problem is/was?

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Old 03-31-2004, 09:38 AM
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When it went did you notice any other electrical system failure? I had a duster with similar issues. It Would run fine then just die. Mine wouldn't even turn over when it failed though so probably not the same issue. My case it was a bad amp meter. Sounds funny but ALL of the juice to the car, engine systems runs through it. I would have to go under the hood and jump the starter wire to turn over, but no start.

Check your wires, and does a 64 use an electrical bulkhead to go through the firewall? If it does check and clean up the connections there also.

I don't think your problem's the same, probably going to have to trace wires andd look for a worn/loose/bad connection in the ignition system. Also have you checked your balast resistor?
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Old 04-02-2004, 10:40 AM
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If it still has the firewall resistor--I would start there
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Old 04-02-2004, 11:35 AM
wts wts is offline
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speedsup64 have you checked the in line fuel filter yet. I have had quite a few of dodges and have found that when they quit running at 55mph it has always been the fuel filter. If you let it set for awhile it will startup and run for a while and stop again. You will find a lot of trash and water in the filter, W.T.S
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Old 04-02-2004, 07:17 PM
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I had the same problem with my 77 Dodge van...It turned out to be the pickup coil in the distributer. Also. it has to be adjusted just right. Maybe, thats your problem.
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Old 04-02-2004, 07:50 PM
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we have that problem with my bros truck.. 69.. chevy.. i know its not mopar.. but sounds like the same thing..

they told us it was his ignition mosule.. it sits under the cap of the distrib..

seems like when it gets to running tempeture.. it stops running..

Take that part out and check it ..

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Old 04-05-2004, 06:28 AM
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hot stuff

i had a 68 dodge work van 6 banger stock setup. coil cracked but tested good when cool. happened a nite once, lifted doghouse to see it arcing only when hot.
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