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Need Help w/ 440 ignition problem!! Please!!
#362455
06/30/09 09:31 AM
06/30/09 09:31 AM
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Joined: Jan 2003
Posts: 390 Atlanta, GA/Blue Ridge GA
NotaHemi
OP
super street
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OP
super street
Joined: Jan 2003
Posts: 390
Atlanta, GA/Blue Ridge GA
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Guys..I need your help please.
I have a problem with what I believe is the ignition system on the 440 Challenger that has recently started. I would be grateful if some of you experts could advise me on where to start troubleshooting the problem.
I had an ‘89 ford 2.0L 4-Cyl Escort GT years ago while in school that would cut out on me in similar fashion when the engine got up to operating temp and I couldn’t start her up again until she cooled down. A mechanic buddy of mine said that it was a common problem of Fords and it was a small module that plugged into the distributor that he swapped out (a $10 part) and the problem was fixed. Could it be something similar on my challenger. I didn’t see any kind of module on my pro billet MSD distributor??
I have a stoutly built 440/727 with an MSD 6AL, MSD blaster 2 coil, MSD billet distributor and Rich’s firecore50 plug wires and an optima red top battery. The car has been rewired with a painless harness.
The engine fires up beautifully and idles like a kitten ‘til you hit the gas. There is what appears to be good spark and the Mallory electric fuel pump is getting lots of gas to the demon carb.
The problem ocurrs when I put it in drive and actually drive the car. After about 0.75miles of driving or so the car will just shut itself off but the dash lights etc stay on. The ignition system just shuts down and the car just coasts to a stop. It will fire back up after a short break but will ‘shut down’ again almost as soon as I put it in drive and drive it again..Then after a while it becomes more difficult to restart and the battery will die from the cranking.
The alternator is a ‘ToughStuff’ 90 amp from GregZ and it works fine. I had it off to get tested and it is putting out plenty of juice. The voltmeter reads around 14 constant volts.
The MSD box is mounted on the front of the passenger side inner fender a few inches back behind the radiator. Warm up there but there would be plenty of air coming through the grill to keep it cool.
Thanks,
NotaHemi
1974 Dodge Challenger 440 restoMod.
2006 Range Rover HSE
2004 Toyota Sequioa Ltd 4x4
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Re: Need Help w/ 440 ignition problem!! Please!!
[Re: DAYCLONA]
#362458
06/30/09 11:05 AM
06/30/09 11:05 AM
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Joined: Apr 2007
Posts: 871 WA 98043
thecarfarmer
super stock
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super stock
Joined: Apr 2007
Posts: 871
WA 98043
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Might Sputter and Die... priceless
I'm with the last two guys; PC boards full of gizmos, and ignition coils are both known to flake when hot.
Battery, alternator... no so likely.
Should be simple to steal another coil off something and swap it in for diag purposes.
Seduce the attractive, and charm the rest.
******
489 C.I.D., roller cam, aftermarket heads, tunnel ram, stock '54 Dodge rear axle assembly: which of these doesn't belong?
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