Page 1 of 2 12 LastLast
Results 1 to 20 of 32

Am I F'd??

This is a discussion on Am I F'd?? within the Internal Engine forums, part of the LSx Technical Help Section category; This has to do with my 98 Chevy truck not the Camaro. About a month ago my truck started using ...

  1. #1
    Junior Member
    Join Date
    Sep 2005
    Location
    Northern California
    Posts
    42

    Arctic White
    98 Z-28

    Am I F'd??

    This has to do with my 98 Chevy truck not the Camaro. About a month ago my truck started using oil and shortly after developed a misfire. Well I checked the spark plugs and I found out that engine is fouling the No. 3 spark plug. I replaced the plug and the misfire is gone. However, the oil consumption continued. Then the miss came back, so I replaced the plug again. I now carry extra spark plugs with me, as I have gone through 3 plugs in a month. Obviously there is something wrong...so I take the plugs to a mechanic and he says that its odd that its only doing that to one cylinder. He says that it sounds like a piston ring problem...WTF...the truck only has 95,000 on the odo. I really didn't expect to have to tear down the motor before 100,000. Any ideas on what the problem could be??

  2. #2
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
    Join Date
    Feb 2009
    Location
    Pittsburgh
    Posts
    9,965

    White
    2008 Hummer H3

    Imho. A valve seal is taking a shit on you.. I do valve seals first before tearing it the whole way down.. Seals are cheap..
    :\Users\Steven\Pictures\d6ftg5nh.gif


    Suggestion: If you are particularly irritated by another member's posting habits and are constantly fighting the urge to flame them, you can click on that person's profile, and select "Add to ignore list." This will make that person's posts invisible to you.

  3. #3
    Senior Member Z28boy2000's Avatar
    Join Date
    Jun 2008
    Location
    Rochester, NY Rochesterracing.com
    Posts
    1,276
    2000 Camaro B4C

    yeah, id do the seals before you really start to fret

  4. #4
    Awaiting Activation
    Join Date
    Oct 2007
    Location
    NC
    Posts
    635

    SOM
    1998 T.A.

    Do leakdown test on that cylinder. That will tell you where the problem is before throwing seals at it......

  5. #5
    Junior Member
    Join Date
    Sep 2005
    Location
    Northern California
    Posts
    42

    Arctic White
    98 Z-28

    Alright I'll do the test this weekend and see what I find...

  6. #6
    Junior Member
    Join Date
    Nov 2009
    Location
    New England
    Posts
    41

    Blue
    Dodge Magnum

    I'd do a leakdown on ALL of them, actually!

    Bummer.

  7. #7
    Member 346ci's Avatar
    Join Date
    Sep 2007
    Location
    AK
    Age
    27
    Posts
    553

    NBM
    1998 Z-28

    I vote leakdown test as well, do all of the cylinders on that bank at least

  8. #8
    Awaiting Activation
    Join Date
    Oct 2007
    Location
    NC
    Posts
    635

    SOM
    1998 T.A.

    Guys, why would you do a leakdown on cylinders that are not having a problem????

    He is just trying to find out what is going on with this particular cylinder........

  9. #9
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
    Join Date
    Feb 2009
    Location
    Pittsburgh
    Posts
    9,965

    White
    2008 Hummer H3

    Thumbs up

    Quote Originally Posted by SOMbitch View Post
    Guys, why would you do a leakdown on cylinders that are not having a problem????

    He is just trying to find out what is going on with this particular cylinder........

  10. #10
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
    Join Date
    Feb 2009
    Location
    Pittsburgh
    Posts
    9,965

    White
    2008 Hummer H3

    I've been on the site, and around enough motors in my time to know RARELY is it ever rings.. Usually when/if oil can travel down the valve stems it gets on the plug/s. Causeing a misfire/fouling, and as it burns blue smoke out the pipes. Blowby @ the ring level is usually far worse than just a misfire condition and burning some oil.... Ring blowby will in generally cause a dead cyl, not just missfire..
    Last edited by Smittro; 11-17-2009 at 12:56 PM.

  11. #11
    Awaiting Activation
    Join Date
    Oct 2007
    Location
    NC
    Posts
    635

    SOM
    1998 T.A.

    Quote Originally Posted by Smittro View Post
    I've been on the site, and around enough motors in my time to know RARELY is it ever rings..
    When did I say rings..... A compression test can give you a good indication of ring condition.....

    A LEAKDOWN TEST is TOTALLY different and can isolate whether the problem exists in the bottom end or the valvetrain and whether it is exhast or intake related within the valvetrain.......

    How did rings get in here from leftfield

  12. #12
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
    Join Date
    Feb 2009
    Location
    Pittsburgh
    Posts
    9,965

    White
    2008 Hummer H3

    Quote Originally Posted by SOMbitch View Post
    When did I say rings..... A compression test can give you a good indication of ring condition.....

    A LEAKDOWN TEST is TOTALLY different and can isolate whether the problem exists in the bottom end or the valvetrain and whether it is exhast or intake related within the valvetrain.......

    How did rings get in here from leftfield
    It was a general statement. In post #9 is where I agreed with you..

  13. #13
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
    Join Date
    Feb 2009
    Location
    Pittsburgh
    Posts
    9,965

    White
    2008 Hummer H3

    Quote Originally Posted by SOMbitch View Post
    When did I say rings..... A compression test can give you a good indication of ring condition.....

    A LEAKDOWN TEST is TOTALLY different and can isolate whether the problem exists in the bottom end or the valvetrain and whether it is exhast or intake related within the valvetrain.......

    How did rings get in here from leftfield
    Also in the OP he mentioned being told it sounded like an issue with his rings. Which is not likely..

    Quote: "He says that it sounds like a piston ring problem...WTF...the truck only has 95,000 on the odo. I really didn't expect to have to tear down the motor before 100,000."
    Last edited by Smittro; 11-17-2009 at 01:06 PM.

  14. #14
    Awaiting Activation
    Join Date
    Oct 2007
    Location
    NC
    Posts
    635

    SOM
    1998 T.A.

    Quote Originally Posted by Smittro View Post
    It was a general statement. In post #9 is where I agreed with you..
    Gotcha Somehow I missed post #9

  15. #15
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
    Join Date
    Feb 2009
    Location
    Pittsburgh
    Posts
    9,965

    White
    2008 Hummer H3

    Wink

    Quote Originally Posted by SOMbitch View Post
    Gotcha Somehow I missed post #9
    No prob..

  16. #16
    Veteran Blackbird WS6's Avatar
    Join Date
    Jun 2008
    Location
    van down by the river
    Posts
    1,937
    Quote Originally Posted by Smittro View Post
    No prob..
    very good grasshopper...............you are geting the skill of hatin lmfao

  17. #17
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
    Join Date
    Feb 2009
    Location
    Pittsburgh
    Posts
    9,965

    White
    2008 Hummer H3

    Wink

    Quote Originally Posted by Blackbird-WS6 View Post
    very good grasshopper...............you are geting the skill of hatin lmfao

  18. #18
    Junior Member
    Join Date
    Sep 2005
    Location
    Northern California
    Posts
    42

    Arctic White
    98 Z-28

    Well like you guys said I believe it is not the rings but either a valve stem or valve seal issue...now what?

  19. #19
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
    Join Date
    Feb 2009
    Location
    Pittsburgh
    Posts
    9,965

    White
    2008 Hummer H3

    Quote Originally Posted by lmyers1 View Post
    Well like you guys said I believe it is not the rings but either a valve stem or valve seal issue...now what?
    Hmm, well bro if it is valve seals, those are relatively easy to change without pulling heads..If it a stem/guide issue you'll be needing to pull your heads for a valve job..

  20. #20
    Junior Member
    Join Date
    Sep 2005
    Location
    Northern California
    Posts
    42

    Arctic White
    98 Z-28

    Quote Originally Posted by Smittro View Post
    Hmm, well bro if it is valve seals, those are relatively easy to change without pulling heads..If it a stem/guide issue you'll be needing to pull your heads for a valve job..
    How do I determine if its the seals or a valve guide issue without pulling the head?

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •