1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

only 50psi compression in cylinder 4... Help

Discussion in '1st Gen. Tacomas (1995-2004)' started by junebug, Jun 17, 2009.

  1. Jun 17, 2009 at 10:06 PM
    #1
    junebug

    junebug [OP] New Member

    Joined:
    Jun 17, 2009
    Member:
    #18598
    Messages:
    4
    Gender:
    Male
    Vehicle:
    99 tacoma 4cyl, 4X4
    Only 50 psi in cylinder 4 but all other are fine, took out shims but the compression stayed the same.
    Smog check says it's running fine at 2500rpms but not at idle?
    do I really need a head job???
    Never ran funny or threw a check engine light.
     
  2. Jun 18, 2009 at 3:11 PM
    #2
    wildjerseyfirefighter

    wildjerseyfirefighter I sell fishing and fishing accessories

    Joined:
    Dec 17, 2008
    Member:
    #11677
    Messages:
    7,958
    Gender:
    Male
    First Name:
    Joe
    NJ
    Vehicle:
    05 Tacoma TRD Sport
    stock, for now
    sounds like a bad ring..can you hear it leak down? how many miles?
     
  3. Jun 18, 2009 at 3:13 PM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,195
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Could have a leaking valve or a bad piston ring/s....
     
  4. Jun 18, 2009 at 3:16 PM
    #4
    wildjerseyfirefighter

    wildjerseyfirefighter I sell fishing and fishing accessories

    Joined:
    Dec 17, 2008
    Member:
    #11677
    Messages:
    7,958
    Gender:
    Male
    First Name:
    Joe
    NJ
    Vehicle:
    05 Tacoma TRD Sport
    stock, for now

    is that above or below the 3.4 waterpump:p
     
  5. Jun 18, 2009 at 3:20 PM
    #5
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,195
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Im putting you down for a kick to the nuts.
     
  6. Jun 18, 2009 at 10:32 PM
    #6
    junebug

    junebug [OP] New Member

    Joined:
    Jun 17, 2009
    Member:
    #18598
    Messages:
    4
    Gender:
    Male
    Vehicle:
    99 tacoma 4cyl, 4X4
    only has 123,000 miles, bad ring... dose that mean new engine?
     
  7. Jun 19, 2009 at 6:05 AM
    #7
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,195
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    No. Usually, the cylynder can be honed, and a new piston and rings can be installed. This is a worst case scene, however. :)
     
  8. Jun 19, 2009 at 6:03 PM
    #8
    junebug

    junebug [OP] New Member

    Joined:
    Jun 17, 2009
    Member:
    #18598
    Messages:
    4
    Gender:
    Male
    Vehicle:
    99 tacoma 4cyl, 4X4
    So more likely it's a stuck exhaust valve... That means I'm taking off the head and taking it to a machine shop... Do the valves have to be removed before it goes or do I just take the whole thing down there?
    And what am I looking at, $500.00 give or take for a valve job?
     
  9. Jun 19, 2009 at 6:23 PM
    #9
    DDD

    DDD Shine bright like a hymen

    Joined:
    Mar 6, 2009
    Member:
    #14416
    Messages:
    2,254
    Gender:
    Male
    First Name:
    Derek
    Santa Clarita, CA
    Vehicle:
    06 DC 4x4 TRD Off-Road
    Take the whole head with valves still assembled.
     
  10. Jun 19, 2009 at 8:39 PM
    #10
    junebug

    junebug [OP] New Member

    Joined:
    Jun 17, 2009
    Member:
    #18598
    Messages:
    4
    Gender:
    Male
    Vehicle:
    99 tacoma 4cyl, 4X4
    thanks for the help. this is my first toyota... used to subarus were you never have to deal with such things.
    Still curious about cost for work... I realize it's different depending on where your at. But we all know these ae "hard econimic times" or at least that what my boss tells me when I do the work of three people.
     
To Top