I did not pull them out when I had it a part . I bought a set of injectors the other day , I will pull the rockers while I do those and maybe just replace them . they don't cost to much . Looks like she gives me another week of free work lol still have to change the ball joints and radius arms out . She likes attention and my money
yeah I agree lol .
so today I took the truck to the gastation and filled her up . on my way back she died 3 times and the rattle got somewhat louder . made it home and she wouldn't start at all . have fuel pressure from the lpfp . could that rattle noise be my hpfp ?its the original pump . I didn't see any shavings in the fuel filter .checked that first . I checked for codes and had p2291 injector pressure to low . waited and let truck cool down for 30 min and she fired back up but died again after 10 seconds . if I cycle the key few times she will start and then die after 10 seconds again . I have a feeling its the hpfp but wanted to get some input on it . I know on the 7.3s when the pumps go they wont run when the truck is hot and soon as it cools down it starts again . not sure if the 6.4 is the same with that .
what does usually cause p2291 ? one other thing i noticed is that my fuel filter wont keep fuel in it . when i take it off its almost empty .if I cycle the key it will fill up but drains back down . I didn't hook a fuel pressure gauge to the lpfp but i do get fuel on the Shrader valve and it fills the filter . would it be possible that it doesnt build enough pressure to supply the hpfp ? i replaced the lpfp not to long ago with one i bought at autozone . only replaced the pump , not the housing .
I hooked my scanner up to it . took a video of it . first time cranking it had 0 pressure . then I cycled the key 2-3 times and left it on each time till the lpfp stopped humming . seems like it humms less then it used to . after that I tried to start truck and she fired up and was running over 5000psi and then you can see it drop and stall . you think it could be possible that my new lpfp is taking a crap on me ? here the video .
Good morning , so autozone warrantied the pump and upgraded me for free to a motorcraft one that came with the water seperater housing .not a racor but at least OE. installed it and bled air out and now she runs great again . now I will be changing the rockers and bridges , I ordered a set and also have a set of fuel injectors for her . if that dont take care of the noise I will look into the torque converter. if I do pull the trans I probaply just get it rebuild since she shifts a little late in higher gears. these trucks are kinda like a boat when the go up in miles
bring out another thousand I keep you all posted on everything . thank you for all the help.
i did not pull the injectors yet . Im going to replace them probaply next week . i will for sure check for glitter . motor in this truck is original for sure . i have a bunch of records on it . if there is glitter I'm going to end up replacing the complete fuel system .Yes on bridges , I ordered those too. I know most shops hate them 6.4s and they have a really bad reputation. I hear that a lot lol . I do like my truck . maybe at some point I do a cummins swap lol .
its really weird but the truck stopped making the rattle noise since I changed the fuel pump out . drove it for a while today and not a single noise . I hope it stays that way
Im still going to swap the injectors, rockers and bridges and maybe even the hpfp . just so I have a piece of mind . Im passed the 250k mark with the original pump and injectors so there is probaply not to much life left in them lol . I keep you all posted while I go .
