Help, my 7.3 won't start! - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 7 (permalink) Old 01-11-2007, 04:29 PM Thread Starter
 
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Help, my 7.3 won't start!

I have a 94 7.3 DI that I just finished replacing all 8 injectors and glow plugs and now it won't start. The engine cranks fine, but won't start. Am I doing anything wrong? Do I need to prime the fuel system?
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post #2 of 7 (permalink) Old 01-11-2007, 05:24 PM
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If it is a Powerstroke, keep on a crankin.

It takes a long time to get the oil pumped back into all the passages. Put a battery charger on it and leave give the starter a good break between 10 to 15 seconds of cranking.

If it is an IDI you will need to prime the system and I don't have any advice for you there.

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post #3 of 7 (permalink) Old 01-11-2007, 05:54 PM Thread Starter
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Unhappy

Thanks I got it started now, but it runs worse than it did before. I had the injectors checked because it was running rough, like it was missing. Turned out 6 injectors were bad, so I replaced them with remans. But now it runs rougher than before and I have to hold the gas pedal down to start it, even if I just had it off for a couple seconds and the engine is plenty warm.
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post #4 of 7 (permalink) Old 01-11-2007, 05:57 PM Thread Starter
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Thanks I got it started now, but it runs worse than it did before. I had the injectors checked because it was running rough, like it was missing. Turned out 6 injectors were bad, so I replaced them with remans. But now it runs rougher than before and I have to hold the gas pedal down to start it, even if I just had it off for a couple seconds and the engine is plenty warm.
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post #5 of 7 (permalink) Old 01-11-2007, 06:36 PM Thread Starter
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Sorry about the double post
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post #6 of 7 (permalink) Old 01-11-2007, 10:51 PM
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how long have you had it running since it first fired up?
i had to drive mine for a few miles to clear everything out
oh and i hope you remembered to clear out the cylinders before reinstalling the injectors(otherwise you may have bent a few rods)

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post #7 of 7 (permalink) Old 01-11-2007, 11:55 PM Thread Starter
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Yeah, I did clear out the cylinders by removing the glow plugs and cranking the engine for a while. As far as how long I had it running, I left it idleing for about 10 minutes then I drove it aroung the block (our blocks are big here, so about 1 mile) and it didn't seem it get any better.
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