Truck shutting down on bumps

[zukgod1]

06, F350
Driving down the freeway and hit a bump, the truck shuts down for a micro second.
Just enough to cause the CTS to shut down. If the road is bumpy enough it will just plain shut off.
When it happens the truck goes black, no power anywhere.
Will start right back up.

I just replaced the alternator and it wasn't doing this prior.
I checked what I would consider to be everything.
I cannot duplicate it sitting still. Grabbing the harness everywhere I can, wiggling battery terminals and cables, nothing.
I don't feel like it's connected to the alt replacement but quite honestly I'm baffled.

Hello?

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[camarokiller]

My 6.0 would do this too. Turned out to be the wires going into the attitude controler were shorting in the loom

 

[zukgod1]

I'm just using the CTS as a monitor. SCT tune

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[zukgod1]

Well look at that. All I had to do was ask.
Next couple bumps I hit disabled the tps for long enough I had to idle off the road.
Once off the main road I climbed under the hood and started grabbing the harness everywhere I could. Was about to give up and saw on the driver's side there was a large battery cable hanging. Pervious owner had a "system" in there so it was for the amps.
Where that used to attach to the positive terminal there is a 10mm nut, it was loose and that's the main power supply to the truck.

Tighten that suka down and problem solved.



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