Recent content by Spack9

  1. Spack9

    Running Rough after Intake Gasket Replacement

    Success! Went back and readjusted the valve lash. Went with 1/2 turn past zero lash and she runs like a Swiss watch. Thanks everyone for your time and help!
  2. Spack9

    Running Rough after Intake Gasket Replacement

    Update: Plug wires are installed correctly. Leaning towards injectors now. Gonna check for ignition and compression next.
  3. Spack9

    Running Rough after Intake Gasket Replacement

    Did some data logging also. The MAP is within acceptable range per the service manual. May be a residual code from when I found it loose.
  4. Spack9

    Running Rough after Intake Gasket Replacement

    Right before the gasket job I ran a test every cylinder was 195-205. If the rockers are too tight it will cause a loss of some or all of compression also. I'm leaning more and more towards that. I will recheck compression on them two and see if that is the cause. I have heard of ignition...
  5. Spack9

    Running Rough after Intake Gasket Replacement

    It moved a good bit when I plugged it back in so I believe its time to replace the seal or just the whole thing. I don't think I have a vacuum leak, if I do its very little. Yes I did take the rockers, pushrods, and lifters out to clean and inspect all of them. I used the GM recommended no lash...
  6. Spack9

    Running Rough after Intake Gasket Replacement

    I removed it as an assembly. I will recheck the wires and check for spark before I mess with the rockers. Also the distributor cap is new. I broke the old one installing it. Still curious about the MAP but I know it wouldn't cause what I have now.
  7. Spack9

    Running Rough after Intake Gasket Replacement

    Thanks for the info! Currently I have 0.0 degrees to -0.8 degrees of cam retard. #5 and #7 cylinders are dead. Missing pretty bad. I am thinking I may have over tightened the rockers.
  8. Spack9

    Running Rough after Intake Gasket Replacement

    Got a P1345 code just a bit ago. Service manual says that means the distributor is installed incorrectly. So I pulled it gonna give it another shot later.
  9. Spack9

    Running Rough after Intake Gasket Replacement

    Sure did! How did yaw go about getting the distributor adjusted using a scan tool?
  10. Spack9

    Running Rough after Intake Gasket Replacement

    Im gonna give timing a check also. I just dont have the proper scan tool to get it spot on.
  11. Spack9

    Running Rough after Intake Gasket Replacement

    1996 K1500 5.7 I just finished intake gaskets but the truck is running very rough. Throwing P0106 for map sensor performace and P0300 for multiple random cylinder misfire. The truck ran great prior to teardown. From what I can gather from the service manual I expect a vaccuum leak. Gonna go try...
  12. Spack9

    Please Help!! 1999 Yukon OBS Surging when idling.

    Idle air valve?
  13. Spack9

    What are ya'll getting for mpg?

    1996 5.7 get 13-14 city. Not sure what I get highway.
  14. Spack9

    Electric 4x4 insanity

    Had a similar issue but mine was the front actuator. Mine is the non thermal type. I would check to make sure the front actuator is getting power before going further. My harness looked pretty rough when I changed the actuator. Turn the key all the way on without starting the engine in neutral...
  15. Spack9

    BS oreilly experience

    Never go to O'Reilly's for electronic parts. They are made by the same company who supplies Advance but the majority of electronic parts that O'Reilly's sell have failed quality control. Came straight from a district manager I know.
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