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View Full Version : Notch shutting off while driving


Chris00GT
05-23-2007, 10:14 PM
Well last weekend I put a new MSD cap and rotor on along with plug wires and new plugs. I took her for a run and about 15 minutes into the drive she shut off. As she sputters down I look at the fuel pressure gauge and she's still reading fine along with temp and oil. I pull over and figured something with the MSD 6AL, so I bypassed it. I started up the car and she ran fine, so I decided to go home. On the way she shut off twice. Each time I she just dies, I pop the hood and look but nothing and then she starts up and runs. I check the plugs, wires and rotor and it all looks fine. Any ideas?? I'm thinking maybe the TFI ignition module on the side of my MSD distributor.
INSANELY CRAZY
05-23-2007, 10:24 PM
module could be goin bad, usually when they go bad,motor will just crank over.. what about temp sending unit? do you have to let it cool down a bit before starting again?
Chris00GT
05-23-2007, 10:36 PM
No I didn't have to let her cool down. Come to think of it the first time I went to start it she would just turn over. I then bypassed the 6AL and she fired, so I figured that was the problem. Then on the way home she shut off twice and restarted and she did hickup a few times where I saw the tach shoot up for no reason.
lib88stang
05-23-2007, 10:41 PM
Check the TFI, is it a grey motorcraft or a white parts store knock off?
Chris00GT
05-23-2007, 11:06 PM
It's the one that came with the MSD distrubutor, but I think it's gray or black. I bought the distrubutor used so it's a few years old and was on race car.
Chris00GT
05-23-2007, 11:20 PM
double post
Stangman701
05-24-2007, 10:43 AM
My guess would be the 6AL box. I had a 6A box go bad on me and it would do the exact same thing. Except in my case it wouldn't start back up for a while, like an hour or so. Sent the box back to MSD... they said it was fine... put it back in and the car did the same shit. I chased so many stupid parts trying to fix that problem then one day I just said **** it and bought a new box at the parts store and bam problem solved.
Chris00GT
05-24-2007, 10:51 AM
It's not the 6AL, it was the first thing I bypassed when the car shut off. It still died twice without it on the way home.
coralcoupe1993
05-24-2007, 11:48 AM
I had an issue with a coil over heating and giving a weak spark. That was on a 429 cj though:innocent:
mlowry1260
05-25-2007, 12:24 AM
My vote is for a bad TFI module. Get a Motorcraft when you buy one.