poor running truck
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Freshman User
Joined: Dec 2003
Posts: 35
Likes: 0
From: north augusta, sc
poor running truck
need help. first off great site. f350 1999 no mods, now the problem, today driving interstate on the way home, had to slow down for some construction and rpms dropped real low as if truck was going to shut off. pressed pedal to the floor rpm's fluctuated up and down 100-200 rpm's. truck started moving again as if nothing happened. then noticed it felt as if it was surging.wanted to shut off almost everytime I stopped.pulled in driveway, put in park rpm's moved from 500 to 1500 several times. cut off truck started bak up idles fine no surge or misses. 
no engine lights
code reader finds nothing(snap on)
new fuel filter 2 weeks ago
cps 2 weeks ago
cleaned ebpv tude out 2 weeks ago
air filter clean
any suggestions this has happened twice in the past, thats the reason for the items above. but doesn't do it all the time(kinda like the wife) i don't care who u r that's funny!
no engine lights
code reader finds nothing(snap on)
new fuel filter 2 weeks ago
cps 2 weeks ago
cleaned ebpv tude out 2 weeks ago
air filter clean
any suggestions this has happened twice in the past, thats the reason for the items above. but doesn't do it all the time(kinda like the wife) i don't care who u r that's funny!
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
I'm here to learn too, but what little I know makes me think the IPR valve is failing. Or the sensor that reads the HPOP pressure. I forget the acromyn for it at the moment.
IPR = Injector Pressure Regulator.
IPR = Injector Pressure Regulator.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Originally Posted by simms63ss
kwik, is their a way to check this regulator.
