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| 1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
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#1
Thu, August 26th, 2010, 09:38 PM
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idle issue
I'm still bugged about my idle. My buddy rode in my truck and thinks its off too. Sometimes its smoothed then other times it shakes the hole truck. When I take my foot of the brake and don't hit the gas the truck slowly lurches forward with the idle. what confuses me is sometimes it really smooth.
I got a brain fart here please deal with it! The sensor that's on the bottom driver side of the hpop pump would that possibly be going out? Thanks Ps on my Droid. 
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#2
Fri, August 27th, 2010, 10:06 AM
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The IPR (Injection Pressure Regulator) valve that you are talking about could be the culprit. Usually when we run into idle stability problems that are not consistent from day to day, it's caused by either a worn/sticky IPR valve or high-mileage engine oil.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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#3
Fri, August 27th, 2010, 03:49 PM
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My engine oil is fresh. Less than 3000. Next pay check I will get a new ipr. Is there any way of testing it? Also would there be any other culprits. Would you like a video of it idling?
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#4
Fri, August 27th, 2010, 04:12 PM
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I know exactly what you're talking about. Mine does it.
You can always take it apart and clean it. You can also put new o-rings on it. Heck, you could even get a new "nut" since you kind of pieced that one together. http://rides.webshots.com/album/472456315uLsKmG
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. Last edited by cleatus12r; Fri, August 27th, 2010 at 04:24 PM.
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#5
Fri, August 27th, 2010, 04:50 PM
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I pulled it apart and rebuilt it but I didn't replace the seals I did order them would those seals make a difference. There is no oil leaking out the back.
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