• Welcome to The Truck Stop! We see you haven't REGISTERED yet.

    Your truck knowledge is missing!
    • Registration is FREE , all we need is your birthday and email. (We don't share ANY data with ANYONE)
    • We have tons of knowledge here for your diesel truck!
    • Post your own topics and reply to existing threads to help others out!
    • NO ADS! The site is fully functional and ad free!
    CLICK HERE TO REGISTER!

    Problems registering? Click here to contact us!

    Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!

Search results

  1. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    They are in South Carolina.
  2. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    They are sold as the total drivetrain for $4000, won't separate.
  3. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    So they are a little more than $2500 more like $4000 but still the trans alone is a 2013 GEP 4L80E, crazy.
  4. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    Yep I'll let you know if I'm actually able to snag em
  5. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    You guys are awesome, I bought a set of Bosch injectors and Bosch glow plugs fresh return hoses and valve cover gaskets. I'm going to take the valve covers off while I've got the injectors out and take a peak in there just to feel better about the valve springs. I went ahead and dumped a quart...
  6. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    Also I did the CPS and optical disconnects runs slightly worse and starts like shit, those are not my issue. Threw a quart of ATF in the oil, see my previous question on the bore scope. Can a normal gas engine compression tester be used on a diesel? I'm thinking not right, has to be alot...
  7. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    I should clarify the new IP was installed AFTER it had been sitting forever, so it is fresh, only the injectors and glow plugs are old. The other thing to note is when it was first fired up from sitting forever on the old IP and stock lift pump it ran fine the first 4-5 times I started it and...
  8. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    It did start fairly suddenly, but just starting and stopping the truck never even really drove it so I don't see how I put enough load on it to blow a hole in a piston. Now a snapped valve spring I could see, but like I said I did the cylinder balance test and every cylinder responded the same...
  9. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    Highly doubt that is the issue as they are both brand new and it ran basically the same prior to both being replaced, is the blow by not an issue?
  10. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    Also no codes and it seems to run fine at higher RPM's and under load, throttle response is good it passes the 3k rpm test, runs fine under boost too no smoke no overheating. Fires right up cold or hot no significant smoke. TDC Offset is at -0.44, has the original CDR valve on it don't know if...
  11. M

    1997.5 H1 Hummer 6.5TD Rough Idle & Blow by w/video Ideas?

    Not sure if that is normal blow by or not but I would imagine not. Engine has about 160k on it, I did basic maintenance to it drove it for 6 months on weekends, then it sat for 7 years without being started and a couple weeks ago it cranked up fine. Then the injection pump ate shit from...
Back
Top