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  #1  
Old 04-21-2011, 05:46 AM
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97 powerstroke low boost and power

i have a 97 f250 powerstroke that i have had a major loss of power and boost and poor fuel mileage. it started when my buddy tried putting his edge cts on my truck brfore setting his back to stock. it froze his edge up and had t0 have it reset. my truck had always had a bit of sputter to it pulling in third gear but would still get up and go. i have had my pcm reflashed but didnt help. i do have oil in the icp sensor. the truck starts up fine and runs fine but if i get on it boost doesnt build till about 2 and half grand 3rd gear (5 speed) its real sluggish. ive checked the uvc harness by unpluggin each conector one by one and each time the truck ran different. i unpluged the icp and the truck ran no different. it does run better with the map unplugged but i have switched it out and didnt help. now im lost can it be the icp or another sensor maybe ipr any help thanks guys
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  #2  
Old 04-21-2011, 01:24 PM
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Re: 97 powerstroke low boost and power

could be boot or plenum leak mix up some sopy warte ans spray it around the boots and plenum you may have a loose or leaking boot or the plenums may have to be resealed with the gray goo. how is you fuel pressure and have you changed you filter latley? fule and air = boost so one or the other is laking.
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  #3  
Old 04-21-2011, 03:00 PM
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Re: 97 powerstroke low boost and power

Check your uppipes for soot on them or the firewall...
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Old 04-21-2011, 03:29 PM
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Re: 97 powerstroke low boost and power

^ what they said.
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Old 04-21-2011, 04:34 PM
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Re: 97 powerstroke low boost and power

i have a similar issue except the turbo one day got real loud so i try to keep the revs down so i dont go into surge untill i can look into the leak or whatever is causing the turbo to rev too much
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Old 04-21-2011, 05:08 PM
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Re: 97 powerstroke low boost and power

Quote:
Originally Posted by ltjag101 View Post
i have a similar issue except the turbo one day got real loud so i try to keep the revs down so i dont go into surge untill i can look into the leak or whatever is causing the turbo to rev too much
uh a leak wont cause over speeding the turbo. you will loose boost(turbo speed).....
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Old 04-22-2011, 12:50 AM
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Re: 97 powerstroke low boost and power

have a new fuel filter only about three months old ill go try checking the the boots with soapy water. i havent checked the fuel pressure yet
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Old 04-22-2011, 12:53 AM
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Re: 97 powerstroke low boost and power

Up pipe leaks are common. Check then too.
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Old 04-22-2011, 03:58 AM
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Re: 97 powerstroke low boost and power

i checked foe leaks with the soapy water none. i checked my fuel presurre gauge bounces between 50 and 60 psi at idle
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Old 04-22-2011, 12:54 PM
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Re: 97 powerstroke low boost and power

Ok. Fuel pressure seems good. Did you check your UP-PIPES?
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