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post #1 of 9 Old 10-13-2012, 09:46 AM Thread Starter
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Please help motor problems

Hey guys first post I have a problem got a 96 250 with a 7.3 powerstroke my problem is when I step on it the motor runs like its missing but just normal driving its fine nice and smooth also I have a banks boost guage and it has never gone above 8 psi it's at about 2 psi going 60 down the road anybody had this problem? Please help
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post #2 of 9 Old 10-13-2012, 09:48 AM Thread Starter
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Also no black smoke at all I had a 6.0 liter before this and it would pour it out when I got on it.
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post #3 of 9 Old 10-13-2012, 09:59 AM
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Just because your truck doesn't dump smoke doesn't mean it's broke. It means that your truck is running economically. Soot is just unburnt fuel.

You need to check all your boots and clamps to make sure that you have no intake leak. Do you ever hear a hissing sound (not your turbo whin) when you mash your foot down?


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post #4 of 9 Old 10-13-2012, 10:27 AM Thread Starter
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No whin also not sure if this was a good idea or not but I took a can of Eather and sprayed near all it rubber boots and no change in idle.
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post #5 of 9 Old 10-13-2012, 10:36 AM
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That's the correct way to check for intake leaks. So thumbs up to you. You may want to take a peek at your compressor wheel to make sure there isn't any cracks or chunks missing. And check for play in your turbo as well.

Do you know of any history about this truck?


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post #6 of 9 Old 10-13-2012, 10:45 AM
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The boost gauge may have a leak to it, you may have a little low fuel pressure, high pressure oil pressure, leaking up pipes.



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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post #7 of 9 Old 10-13-2012, 10:45 AM Thread Starter
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No unfortunately not I bought it from a guy who used for his lawn business the title showed he owned it for 9 years before I bought it. There is a banks brake on it I can turn the switch on and nothing happens the control unit for it is under the dash a light will come on when my foot is off the pedal would this have anything to do with my problem?
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post #8 of 9 Old 10-13-2012, 10:47 AM
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The brake could be stuck closed, but it would usually cause even bad normal driving. I'd check it out too.



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post #9 of 9 Old 10-13-2012, 11:10 AM
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You may wanna invest in a fuel pressure gauge. There's a thread somewhere on here that shows how to make one for cheap.


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