2001 f 550 7.3 running rough
#1
10-10-2013, 07:59 PM
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Location: Western mass
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2001 f 550 7.3 running rough
My truck is still running rough after doing all 8 injectors.new fuel pump,and filter,new oil,and filter,did fuel tank fix,new valve cover gaskets 2,and tonight just put new Injector control module,after changing that started truck ran awful and finally got check engine light to come on showing low voltage on icp will changing this cure my issues .any help on this would be appreciated I can't sleep at night thinking of things to try
#2
10-11-2013, 05:29 PM
Diesel Enthusiast
#3
10-11-2013, 08:21 PM
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#4
10-12-2013, 01:16 AM
Diesel Bomber
How about that map sensor.... You can try unpluging it and see if it runs even rougher or smoother... Or a weak HPOP. If worse come to works get a 1500-2000psi pressure guage and pull a plug off the oil gallie and put the pressure guage on and crank it and see what kind of oil pressure you are getting, if you cant get a OBD II to read the pressures for you..
#5
10-13-2013, 01:26 AM
Diesel Enthusiast
last week but how many miles? if you drive 2 miles a day vs 200 miles a day that will vary how long it takes to work the air out of the hpo system (also how hard you drive harder you drive less miles it takes
) but if last week was like 150 miles of easy driving could be airated OR did you use those cheap a@# china orings on your inj's??? I tried that cus i got em free... BIG mistake... had like 5 of em disintegrate 50% in like 2 weeks 
) but if last week was like 150 miles of easy driving could be airated OR did you use those cheap a@# china orings on your inj's??? I tried that cus i got em free... BIG mistake... had like 5 of em disintegrate 50% in like 2 weeks
#6
10-13-2013, 07:55 AM
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I have no miles on truck since all this work was done.it has not run good enough to get it out of garage all the injectors were bought from a company that remans them.As of now I have fuel bowl off gonna put all new o-rings in it the one coming in from tank was bad.The truck runs good for about 2 min then it starts running rough lot of smoke no power.hey I thank everybody for all the input.I use the truck for my construction business and being without it hurts
#8
10-15-2013, 06:37 AM
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