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  1. M

    40 mph vibration update

    Ok, I have been chasing this low 1300 to 1400 rpm vibration in 4th gear for a while now. I originally found a bad #8 injector.(changed that) Found unplugged(sort of) uvch on pass side, it did not ohm out corectly.(fixed it) I replaced the tc, changed tranny fluid, tried a different idm. I...
  2. M

    installed 08 rearend into my 01, info??

    I bought an 08 rear off a guy. I installed it the other day. I thought I had issues with mine. Turns out maybe not. But anyway, I got the rear, with leaf springs and blocks. I cant use the leafs cause they 08's are longer. I used my original blocks not the 08 blocks(both sets are 2 inch...
  3. M

    03 6.0 info needed asap

    Friends truck is in trouble. I am going to look at it. All i need to know for now is will my 1705 sct superchips read codes on a 6.0? It willon my 7.3. thanks dorry for the 911. But she has horses being towed and the truck is barely running. thx
  4. M

    vibration

    Jacked the truck up tonite in the rear. I have been having a vibration at 38mph. It still did it when jacked up. I tried 3 different wheels sets on the back. All were the same. Just had the driveshaft balanced. The weird thing is i can hold it at 38 then barely give it more pedal. It jumps to...
  5. M

    finding a week injector?

    I know its possible for an injector to pass the buzz test and the contribution test but still not be properly working. I have a shudder which i am really beginning to think it may be a skip under load(tc locked) at low speed(38mph) and 1300 rpm. If it is a week injector, how do I find it? thx
  6. M

    #8 cyl failed cct test??

    First if (new to me truck), has had a bad cyl 8 injector for a while does that hurt the cylinder? will it have done damage to the piston or the cylinder wall? Has anyone heard of the gray cps causing a phantom 8 failed cct test.??
  7. M

    bad injector cause a shake?

    If an injector or two is failing can it cause a shake or vibration at like 40mph? I have had starting issues a while back but changed the ipr. Sometimes lopes bad when cold, glow plugs are fine. The question is hypothetically, if an injector has failed can it feel like a bad driveshaft or...
  8. M

    dana 80 pinion yoke instal help please.

    I replaced the seal on my dana 80. The front pinion seal. My question is when reinstalling the yoke do you have to use a special tool(yoke installer) I just slid the yoke on and used the large nut to tighten it all down.These rears use spacers no crush washers if it matters. I had to do this on...
  9. M

    7.3 turbo internals

    Can someone walk me thru whats on the inside of the turbo? Does not have to be in great detail. KInd of curious as to what can fail? How many bearings are in it? where? When one fails what goes bad? thx
  10. M

    idm and ecm locations?

    The computer is the ecm right? Thats under the drivers kick panel? the idm? wheres that? thx
  11. M

    vacuume pumps

    Every morning when I turn the key on in my truck the vacuume pump starts to run? No big deal, but was wondering if that means I have a vacuume leak or is this normal? It will do it if I let it sit a few hours.
  12. M

    hpop reservoir draining out

    How can the hpop(reservoir) tank drain back to the pan? Bob guzzle mentioned the valve under the hpop or a really worn lpop? I have 117k on it. It runs well, just slightly slow starting. I checked the sight plug. It was close to empty this morning. Looking for how and where I need to look and if...
  13. M

    glow plugs and relay

    How would I know if all the glow plugs are working properly? Relay too? Once the engine fires they glow plugs are all done working right? They dont effect it and how it runs when the engine is cold, right? Just effect the the initial starting? thx
  14. M

    08 rear end fit a 99 thru 04?

    Anyone one know if the 08/09 rear ends fit a 99 thru 04? I know the rims are different. But if you use those will the rear fit on the leafs? thx
  15. M

    leaf springs? when to replace?

    My trucks a 99 with mileage. I am not sure how many, i think a dmv error, so i must say a tmu. I can guess 150k. I recently replaced the front leaf bushing with poly. But wondering? how would i know if the leafs are good? it sits level? How about the rears? The original bushings seem good. I...
  16. M

    need transfer case info

    I may be looking for a transfer case. Can someone explain the rotation and model numbers. I have a model 271-f with a rotation 272. What does it mean. What must the new one have have to work? do both model numbers and rotation have to match? I know the diff gearing must match but how exact a...
  17. M

    high idle mod pto wire on a 99? work??

    Can i do the pto wire high idle mod on a 99 7.3? I know it works on an 04 6.0 motor. Can i do it on a 99? is it the same 2 wires? thanks
  18. M

    throttle position sensor replace

    When replacing a throttle sensor, does it need to be set with a meter or just installed? also what are the other small set of wires for right next to the throttle sensor? these are attached to the pedal too?
  19. M

    power steering shaft and pulley

    I can push my pulley in and out a bit. I would think that there should be no play. Can someone go and pull on their pulley and seeif it moves in and out. Its a fresh reman pump, 2nd one. First leaked. This is not leaking but pulley moves. I am pretty sure I pressedit on all the way. I thought...
  20. M

    injectors and age

    I realize injectors can leak, O rings go bad, I am assuming that they can also get noisy, MY question is, exactly why would old injectors get noisy? If a truck runs fine, why would they get so much more cackling? I know air in lines etc, but for the sake of conversation lets assume its the...
  21. M

    ebpv valve info needed

    I got my truck a few months back. I unplugged the ebpv valve. I got codes p0470 p0475, i guess normal with it unplugged. My question is though, how do i know if its open all the way and allowing flow? If it was not, what type of noise would it make? With the wires unplugged how do i know...
  22. M

    do 4wd fr axels spin in 2wd?

    When cruising around with the hubs unlocked and the transfer case in 2wd. DO the front axels and U joints rotate? I thought they did not move when in 2wd on these fords?
  23. M

    icp sensor on 7.3

    icp sensor on 7.3 and wires to it? WHat happens if an icp sensor is going out? WOuld it throw a code? Can they cause it to act up and slightly hesitate or maybe sputter is a better term when taking foot off the pedal when driving at say 40mph? I read somewhere that if the sensor is leaking...
  24. M

    hpop pump and age?

    Can a hpop pump get weak? if so how?If its mechanical wouldn't it pump the same amount of pressure old as it did new? How would a mechanical pump get weak? can it?
  25. M

    code readers

    Why dont advance auto code readers or walmart obd2 code readers not work in diesels? Or do they? I have an obd2 orange code reader(walmart I think) I was told it wont work on a superduty so I got an old superchips 1705 to read the codes. what makes this special? thx

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