2000 f350 missing and raw fuel smell - Ford Powerstroke Diesel Forum
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post #1 of 18 Old 05-16-2012, 05:30 PM Thread Starter
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2000 f350 missing and raw fuel smell

I bought a 2000 f350 with 109000 on the engine, not even close to being wore out yet. I know nothing about the 7.3 but I am somewhat mechanicly inclined. My problem is it has a miss at idle and it puffs a little bluish to white smoke, and has a smell of raw fuel out of the exhaust. Going down the road you don't notice the miss in it. I did scan it and it was a p1275 code. Something to due with the 5 hole injector open high to low side. Am I on the right track? Again this truck was doing this when I bought it.

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post #2 of 18 Old 05-16-2012, 05:57 PM
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#5 might be hung open.
I'd quit driving it NOW



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
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post #3 of 18 Old 05-16-2012, 08:58 PM
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pull the passenger side valve cover. fire it up. see if 5 is oiling. can also disconnect 5 while it's running. see if idle changes.
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post #4 of 18 Old 05-17-2012, 02:28 PM Thread Starter
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What do you mean by oiling?
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post #5 of 18 Old 05-17-2012, 02:36 PM
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I think he's referring to oil coming out of the oil drain spout that directs the oil back down into the pan.

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post #6 of 18 Old 05-17-2012, 10:46 PM
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when each injector fires it will squirt oil out if it so look to see if it has oil squirting out. No oil flow and there is your problem well atleast part of it anyway


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post #7 of 18 Old 05-19-2012, 06:29 PM Thread Starter
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update

First off I just bought this truck, it had problems , bought it for a good price. I will eventually figure it out.

I switched the idm's with a known good idm and the p1275 code went away. So I think that was the problem there, as far a the miss is concerned.

I also ohmed out the harness from the idm all the way the uvc evrything checked out good.

Now onto the smoking problem.....it failed the cct on cylinders 6 and 8 so I swapped the injectors with 2 known good ones and still fails. My next step is a compression test to see if the cylinders are dead.
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post #8 of 18 Old 05-19-2012, 06:53 PM
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The "failed" injectors is probably a CPS issue.
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2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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post #9 of 18 Old 05-19-2012, 07:23 PM Thread Starter
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I also put a new cps in it , after I took out the good idm and put the bad one back on. It still had a miss in it but it wasnt as bad as it was before I replaced the cps. I think the miss is becuase the idm is malfunctioning.
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post #10 of 18 Old 05-19-2012, 08:12 PM
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pretty sure 8 will always fail the cct test regardless.
my honest opinion, it probably needs an injector or 2.
i'd pull the valve covers, run it, and see which ones aren't oiling. if they all are, i'd pull each injector connector one by one and see which one is causing the miss.
then pull that injector and have it tested.
that's what i'd do
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