Hard start no power. Just about stumped - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 02-24-2012, 05:20 PM Thread Starter
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Hard start no power. Just about stumped

I have a 97 f350 7.3l tht is stock except for a k&n intake. It had some minor colision damage so it sat for about 6 months exept for being started and warmed up every month or so. I drove it to the shop fixed and painted it. Now it will only start if its plugged in overnight i ohmed the glowplugs and they were a little low i replaced the glow plug relay and it still acts the same. When it started, i had no throttle response just a very slow lopy idle(500 rpm) I put a replaced the CPS and fuel filter no change. Put it on autoengunity and it showed P0107,P0123,and P0603.Buzz test ok replaced TPS (and fixed broken wire to TPS) and installed two new batterys now throttle works but it is gutless and idle is still lopey. In neutral with the petal to the floor will only go to 2000 rpm and slowly fall to 1800. limped to the gas station put a tank of fuel in it and now autoengunity wont pull codes or let me view live data, I am working with there tech support now.

Im just about stumped.Any ideas on where to go from here?
Thanks in advance
Eric
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post #2 of 6 Old 02-24-2012, 06:46 PM
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Fuel problem, sounds like there is water in the fuel from condensation.
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post #3 of 6 Old 02-24-2012, 06:51 PM
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Does the 7.3l have a FICM (fuel inj cont module)? Your symptoms are the same mine were on my 6.0.


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post #4 of 6 Old 02-24-2012, 07:06 PM
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When was the last time you changed the oil?
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post #5 of 6 Old 02-25-2012, 08:26 AM Thread Starter
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I changed oil about 3 weeks ago forgot to mention that. I thought fuel too but i dont see water in the filter housing, and with a tank of fresh fuel in the front tank, it runs the same as the old fuel in the back tank.
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post #6 of 6 Old 03-03-2012, 01:34 PM
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I would still throw some type of drying additive in the fuel. Would also test the ICM. See if you can borrow one from someone and confirm that is it before you buy a new one.
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