Starting/ignition problem - Ford Powerstroke Diesel Forum
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Old 07-24-2014, 06:30 PM
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Starting/ignition problem

Sorry I have been posting so much lately but I have been real busy and neglected the ole 7.3 over the past few months and have some catching up to do.

I had a problem the other day when I went to start it. I had turned the key to let the GPs warm up and as I was waiting for the WTS light to go off everything surged (lack of power) then it went back to dinging and normal. A second later everything went dead including the radio - nothing happened when I turned the key. It was like someone had just flipped a switch to the batteries. I got out to check my battery cable connections and all were good after a little jiggle. I got back in and it fired up like normal.

I have had a couple similar power "sputter" type issues when starting although it has been very infrequent.

Thoughts? I considered it could be the starter relay but don't know enough about how that works


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Old 07-25-2014, 04:54 AM
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I had the same issue but pulled the battery cables and cleaned everything real good with a wire brush. Check your grounds and starter connections as well. Mine was a loose battery cable.
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Old 07-25-2014, 06:14 AM
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I agree with him. Make sure your cables are good. If not replace them. Then clean everything up real good and tighten everything down good.
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Old 07-25-2014, 08:11 AM
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The starter relay has nothing to do with what you saw.

The battery connections, on the other hand, deal with 600-700A (minimum) while starting the motor - ~160 for the glowplugs, ~500 for the starter. Maybe a bit more.

Go clean and tighten all 4 battery connections. If it does it again, look into where the cables connect.
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Old 07-25-2014, 11:07 AM
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Same thing happened to me last night, Also under acceleration my gauges, and headights will flicker sometimes. And then rolling up my window or turning my lights on will shut my radio and gauges off. I think I have some wiring issues. But ill have to check the battery connections for the starting issue.
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