99 7.3 problems - Ford Powerstroke Diesel Forum
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Old 12-10-2013, 04:30 PM
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99 7.3 problems

hey guys I got a 99 7.3 powerstroke with a straight pipe and a ts 6 position. the problem is some times it will run fine then other times its slow and has no acceleration. sometimes under wot it will run like a raped ape then will lose power. then sometimes will just off after a blip of the throttle and wont restart for awhile. changed icp senor bout a month ago and cps yesterday didn't help at all. any help welcomed!
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Old 12-14-2013, 05:02 PM
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Erm...my suggestion would be with the IPR (Injection pressure regulator), if it gets stuck or somehow allows the incorrect pressure, it may kill the power. And, if it has some sort of correlation to the fuel level, the problem may be in fuel delivery. I say IPR though because I had a similar problem.
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Old 12-14-2013, 06:01 PM
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Quote:
Originally Posted by lookin4myPSD View Post
Erm...my suggestion would be with the IPR (Injection pressure regulator), if it gets stuck or somehow allows the incorrect pressure, it may kill the power. And, if it has some sort of correlation to the fuel level, the problem may be in fuel delivery. I say IPR though because I had a similar problem.
I agree, possibly hpop itself or possibly fuel pump has intermittent hiccups.

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