Author Topic: No Spark 71 Challenger  (Read 820 times)

Offline black68gtx

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No Spark 71 Challenger
« on: May 13, 2013 - 04:48:24 PM »
Hi gang...I'm new to forum and I have the pesky problem with my 71 Challenger. It's a 440 six pack, electronic ignition. We only use it for shows and very rarely does it get out of storage. But it has this problem that from time to time it will not start. It seamed to have started 2 years ago I was on a cruise and it died...NO Spark. I went through all of the necessary steps changing the coil, voltage regular, and ECU from my GTX to the Challenger nothing. I spotted a ground on my GTX from the engine to the ECU and none on the Challenger so I installed one and it fired up. Then a year ago I was sitting in traffic and the Challenger started to load up so I made my way to the side of the highway just before it died. After about an hour it fired up and no problems the rest of the weekend. 3 weeks ago I tried to start it up and nothing,  so I thought maybe it was flooded so I made some cardboard pieces to choke the front and back carbs and it fired up. It started it up maybe 10 times since. I went to start it 2 days ago and it wouldn't start. I pulled a plug and no spark. Not sure what to think at this point. Should I be looking at the distributor. The electronic ignition is the Mopar Performance.




Offline Chryco Psycho

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Re: No Spark 71 Challenger
« Reply #1 on: May 13, 2013 - 07:37:50 PM »
check the gap between the reluctor & pick up coil in the dist , it should be .008 , clean & tighten any grounds , coul dbe an intermittent ECU too , you may want to look at the new Rev-N-Ator ECU
Welcome BTW

Challenger - You`ll wish You Hadn`t

Offline Bullitt-

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Re: No Spark 71 Challenger
« Reply #2 on: May 13, 2013 - 10:44:05 PM »
Could be the ballast resistor, my car was hard to start and when it did ran rough and smoked some. One day I tried to get a voltage reading off the ballast resistor for a forum member but the numbers kept fluctuating so I tried checking its resistance and again I could not get a consistent reading so I put a new resistor on & the car immediately was easier to start and ran smoother
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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