Ford Powerstroke 94-98 7.3L Discussion of 94-98 7.3 Liter Ford Powerstroke Turbo Diesels

Why does my truck have a huge sputter/misfire in Neutral (?) at like 2800 rpms?

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  #11  
Old 09-08-2011, 05:39 PM
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when you romp on it are you driving or are you parked?
 
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Old 09-08-2011, 07:02 PM
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I romp on it every single time I drive it to clean it out and keep it running good
 
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Old 09-08-2011, 07:10 PM
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ok. when you romp on it i'm guessing it down shifts. my 96 would do it and it was almost stock. just intake and exhaust. if it's black i wouldn't be to concerned about it.
 
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Old 09-08-2011, 07:11 PM
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Oh shoot let me re-write that! When I romp on the truck and it puffs black smoke, it's in neutral! NOT in drive! Sorry I messed that one up
 
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Old 09-08-2011, 07:36 PM
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either way, it opens up the injectors and it can't burn all the fuel so it puts out black smoke. it's just unburnt fuel.
 
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Old 09-08-2011, 09:44 PM
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My 96 does the exact same thing and even started leeking oil from some were really bad since. like thew hole bottom of my truck is oiled from driving with the leek
 
  #17  
Old 09-10-2011, 05:52 PM
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89 7.3idi- check this. on the passenger side of the engine oil pan there is a big brass nut where the dipstick tube goes into the pan. those love to loosen up on the OBS. my 94 & 96, and moms 97 would leak there all the time. if that's not it, check your VC bolts. sometimes those get loose and leak a little bit. or the o- rings on your turbo pedistol could be leaking. but VC and pedistol o- rings shouldn't leak the much unless they're shot. i'd say your best bet is the dip stick tube.
 
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Old 09-11-2011, 05:26 PM
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Originally Posted by fordornothing
either way, it opens up the injectors and it can't burn all the fuel so it puts out black smoke. it's just unburnt fuel.
Icic so dont worry about it? because I dont remember the truck ever doing this previously, but if you say it's ok I'll stop worrying about it.

Originally Posted by 89_7.3idi
My 96 does the exact same thing and even started leeking oil from some were really bad since. like thew hole bottom of my truck is oiled from driving with the leek
Ya thats odd because I've noticed a small oil leak forming on my driveway too... it's very irritating because the truck never leaked anything prior to this.
 
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Old 09-12-2011, 07:17 PM
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well it's probably not good wrapping your engine out when you're in nuetral. but i wouldn't worry about it to much. but i'd check you dip stick tube on the pan.
 
  #20  
Old 09-12-2011, 07:20 PM
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There's nothing wrong with revving in neutral; gotta love a governor

But I appreciate the input and help man
 


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