Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE Membership sticker when you sign up for a Premium Membership and choose the recurring plan.

The free 03 Trailblazer fixing it up for my daughter. Now it needs a Transfer case!

Discussion in 'The Garage' started by max 02, Oct 18, 2015.

  1. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

    Joined:
    Jun 23, 2000
    Posts:
    8,054
    Likes Received:
    585
    Location:
    Fort McMurray, Alberta
    Just wait till you need to pull the engine. The front differential passes through the oil pan haha
     
  2. Greg Ducato

    Greg Ducato 1/2 ton status Premium Member

    Joined:
    Mar 26, 2010
    Posts:
    3,012
    Likes Received:
    506
    Location:
    Weatherford Texas
    Glad it came out well for you!
     
  3. max 02

    max 02 N.E.D. Premium Member

    Joined:
    Sep 29, 2009
    Posts:
    8,577
    Likes Received:
    1,281
    Location:
    Clive Alberta Canada
    Lol! Yeah I know... Larry on here did one not to long ago, don't think he was to impressed either! :doah:

    Thank you! I asked the rebuilder everything you told me to ask and he knew all about it. I got no way of telling what he did to the valvebody but it does seem to shift great!

    Time will tell I guess!??
     
  4. max 02

    max 02 N.E.D. Premium Member

    Joined:
    Sep 29, 2009
    Posts:
    8,577
    Likes Received:
    1,281
    Location:
    Clive Alberta Canada
    Ever since we got this TB it would idle erratically...with the air on it would stall out. Some Googleing and a easy fix!

    Dirty throttle body...

    image.jpeg

    image.jpeg

    image.jpeg

    image.jpeg

    Nice and clean now! Runs smooth and idles at 600 just like it should.
     
  5. Greg Ducato

    Greg Ducato 1/2 ton status Premium Member

    Joined:
    Mar 26, 2010
    Posts:
    3,012
    Likes Received:
    506
    Location:
    Weatherford Texas
    What was all the gunk from? Oil?
     
  6. max 02

    max 02 N.E.D. Premium Member

    Joined:
    Sep 29, 2009
    Posts:
    8,577
    Likes Received:
    1,281
    Location:
    Clive Alberta Canada
    Well is doesn't burn any?

    Being dirty like that is a comon problem on these...so I have read on the Internet.
     
  7. 76zimmer

    76zimmer Flyin Rat Premium Member GMOTM Winner

    Joined:
    Nov 14, 2005
    Posts:
    23,351
    Likes Received:
    1,750
    Location:
    Kzoo, Mi
    Great job Dean
    Way to work a deal buddy
    I've had the same carbon? Buildup on my 6.0 too
    Did you clean the MAF also?
    Made a big difference in idle quality for me.
    Now imagine if you will...my cylinder head guy built that engine and ran 7.70 with it in a dragster! On carbs, normally aspirated and racing gas.
    To me that's amazing as in 1965 top fuel dragsters with blown hemis on nitro only ran 7.75
     
  8. max 02

    max 02 N.E.D. Premium Member

    Joined:
    Sep 29, 2009
    Posts:
    8,577
    Likes Received:
    1,281
    Location:
    Clive Alberta Canada
    With a 4.2 six!? Unreal!
    Funny thing, these have 275 hp /275 tq it goes good!


    03 Trailblazer doesn't have a MAF Looks like they started using them on some 05s and up.
     
    Last edited: Aug 11, 2016
  9. 76zimmer

    76zimmer Flyin Rat Premium Member GMOTM Winner

    Joined:
    Nov 14, 2005
    Posts:
    23,351
    Likes Received:
    1,750
    Location:
    Kzoo, Mi
    Yes and it was only 242 ci as well
    He said that head would outflow most BBC heads and he spun it to 10k rpm.
     
    max 02 likes this.
  10. rob h

    rob h 1/2 ton status Premium Member

    Joined:
    Sep 13, 2008
    Posts:
    2,017
    Likes Received:
    52
    Location:
    frackville,pa
    The build up of oil can be fixed with adding a catch can, especially on a 6.0. The pcv location sends the blow by back into the throttle body. Put a catch can in the middle of that and its gone.

    The early trailblazers are speed density tuned like the older cars, its about the only gm vehicle that was done like this from 02 till now. I would imagine it has a map sensor tho on the intake.
     
    max 02 likes this.
  11. jekquistk5

    jekquistk5 Weld nekid Premium Member GMOTM Winner

    Joined:
    Jan 18, 2004
    Posts:
    11,440
    Likes Received:
    1,264
    Location:
    Pinckney, MI
    Same problem with my traverse. I added a moroso catch can, and have had no issues since then. Whats worse is in the middle of the winter when the throttle body throws a code, and you can't get up hills due to limp mode.
     
  12. max 02

    max 02 N.E.D. Premium Member

    Joined:
    Sep 29, 2009
    Posts:
    8,577
    Likes Received:
    1,281
    Location:
    Clive Alberta Canada
    Really how nice! Does it have the same engine Jess?
     
  13. jekquistk5

    jekquistk5 Weld nekid Premium Member GMOTM Winner

    Joined:
    Jan 18, 2004
    Posts:
    11,440
    Likes Received:
    1,264
    Location:
    Pinckney, MI

    No its the 3.6vvt engine. Seems to be pretty standard problem on all GM gas engines
     
    76zimmer and max 02 like this.
  14. max 02

    max 02 N.E.D. Premium Member

    Joined:
    Sep 29, 2009
    Posts:
    8,577
    Likes Received:
    1,281
    Location:
    Clive Alberta Canada
    Been awhile...still shifting good! Had some electrical trouble with the car but that is fixed now.

    So now the transfer case is screaming for attention seems to me that the bearing in the transfer case need to be replaced.

    Two wheel drive makes no noise, four wheel high makes some noise, like a howling electric motor growling type of sound, four wheel low sound like its going to blow up!

    It is full of oil...the right GM auto track blue stuff.

    Googled it a bunch and found that there has been lots of trouble with the 226hd auto track Tcase in TBs and worn out bearings.

    The guy I got it from said it was replaced once under warranty.



    Any one have any luck rebuilding one of these!?
     
  15. Bowtie85

    Bowtie85 Straight outta Yorkton Premium Member

    Joined:
    Dec 21, 2006
    Posts:
    2,969
    Likes Received:
    379
    Location:
    Saskatoon, SK
    I've got a np243 I'll give you a deal on:popcorn:
     
  16. max 02

    max 02 N.E.D. Premium Member

    Joined:
    Sep 29, 2009
    Posts:
    8,577
    Likes Received:
    1,281
    Location:
    Clive Alberta Canada
    I wonder if that would shift. :thinking: I know it will bolt to the trans but then what???

    Fock me then a SFA and some 37s... :haha:
     
    Bowtie85 and GWeakland620 like this.
  17. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,564
    Likes Received:
    1,751
    Location:
    E-town baby!
    Big Block, SM 465, atlas...problem solved. :D
     
    max 02 and GWeakland620 like this.
  18. max 02

    max 02 N.E.D. Premium Member

    Joined:
    Sep 29, 2009
    Posts:
    8,577
    Likes Received:
    1,281
    Location:
    Clive Alberta Canada
    Rob parts from Ratbag!??

    Might get a bit pricy for Kate to drive to school! Lol!
     
  19. Bowtie85

    Bowtie85 Straight outta Yorkton Premium Member

    Joined:
    Dec 21, 2006
    Posts:
    2,969
    Likes Received:
    379
    Location:
    Saskatoon, SK
    I see nothing but greatness from here on out boss
     
    max 02 likes this.
  20. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,564
    Likes Received:
    1,751
    Location:
    E-town baby!
    Dan has another big block, Gangrene has a SM 465...

    Might be worse on fuel, but she'd be there first every day. lol
     
    max 02 likes this.

Share This Page