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

4LO wont engauge

Discussion in '2nd Gen. Tacomas' started by Straightshot, Sep 9, 2012.

  1. Sep 9, 2012 at 6:37 AM
    #1
    Straightshot

    Straightshot [OP] Active Member

    Joined:
    Sep 1, 2012
    Member:
    #85986
    Messages:
    26
    Gender:
    Male
    First Name:
    Justin
    Utah
    Vehicle:
    2005, sr5
    Add A leaf, and new front coils.
    Ok so when I bought my 2005 double cab v6 sr5 I tested the 4H out and it worked no problem, but didnt test the 4LO. Last night I went river fishing ( fourwheeling on some sand bars ;) and ended up needing 4LO I tried every trick in the book and even read the book and it wont engauge into 4LO the knob turns but then the system just beebs at me know matter what I try. Anyone have any ideas as to why? Maybe somthing is wrong in the actuator?
     
  2. Sep 9, 2012 at 6:40 AM
    #2
    Maticuno

    Maticuno Weapon Mechanic

    Joined:
    May 26, 2011
    Member:
    #57287
    Messages:
    2,158
    Gender:
    Male
    California High Deserts
    Vehicle:
    08 DCLB Sport
    Pioneer AVIC-D3, SWI-PS, Sirius Satellite Radio, 2X In-Cab 110V Outlets, Constant Fog Light Mod, Inverter Always 400W Mod, Anti-Pack-Rat-In-Intake Mod, Eibachs on 5100's, 2" Toytec AAL, B.A.M.F Rear Diff Skid, 265/70R17 Goodyear Wrangler Authority tires
    If it is beeping that means you are doing something wrong. Since you have a manual, make sure your clutch is pushed ALL THE WAY to the floor before turning the switch to 4 low.
     
  3. Sep 9, 2012 at 6:45 AM
    #3
    Straightshot

    Straightshot [OP] Active Member

    Joined:
    Sep 1, 2012
    Member:
    #85986
    Messages:
    26
    Gender:
    Male
    First Name:
    Justin
    Utah
    Vehicle:
    2005, sr5
    Add A leaf, and new front coils.
    Check Tried it multiply times last night.
     
  4. Sep 9, 2012 at 6:48 AM
    #4
    lipster

    lipster Well-Known Member

    Joined:
    Jul 20, 2012
    Member:
    #83026
    Messages:
    332
    Gender:
    Male
    First Name:
    Mike
    Northern MN
    Vehicle:
    2004 ext cab 3.4 auto TRD
    License plate frame
    Maticuno is correct.

    Switch on clutch must be actuated (clutch all the way down) before you switch to 4 Lo. Same coming out of 4 Lo.
    Try it with the engine off, in a quiet place with window down, and you will be able to hear the actuator work. If you don't do it in just the right sequence, no joy. That switch tells it ok to start, as well as ok to go in or out of 4 Lo.
     
  5. Sep 9, 2012 at 6:53 AM
    #5
    Straightshot

    Straightshot [OP] Active Member

    Joined:
    Sep 1, 2012
    Member:
    #85986
    Messages:
    26
    Gender:
    Male
    First Name:
    Justin
    Utah
    Vehicle:
    2005, sr5
    Add A leaf, and new front coils.
    ok thanks guys i can try it tonight when i get off work. I was trying it last night with the clutch ALL the way to the floor and the truck completly stoped then would try rollin forward/backwards sitting still. But didnt try it with the truck off. Could there be a problem in the actuator that wouldnt let it shift?
     
  6. Sep 9, 2012 at 7:15 AM
    #6
    Maticuno

    Maticuno Weapon Mechanic

    Joined:
    May 26, 2011
    Member:
    #57287
    Messages:
    2,158
    Gender:
    Male
    California High Deserts
    Vehicle:
    08 DCLB Sport
    Pioneer AVIC-D3, SWI-PS, Sirius Satellite Radio, 2X In-Cab 110V Outlets, Constant Fog Light Mod, Inverter Always 400W Mod, Anti-Pack-Rat-In-Intake Mod, Eibachs on 5100's, 2" Toytec AAL, B.A.M.F Rear Diff Skid, 265/70R17 Goodyear Wrangler Authority tires
    I could be wrong but I'm pretty sure if it's beeping that means something was done out of sequence. Did you switch straight into 4LO from 2HI or were you already in 4HI?
     
  7. Sep 9, 2012 at 7:18 AM
    #7
    Straightshot

    Straightshot [OP] Active Member

    Joined:
    Sep 1, 2012
    Member:
    #85986
    Messages:
    26
    Gender:
    Male
    First Name:
    Justin
    Utah
    Vehicle:
    2005, sr5
    Add A leaf, and new front coils.
    Was already in 4HI. The light would keep flashing along with the beep if that makes a difference.
     
  8. Sep 9, 2012 at 8:24 AM
    #8
    lipster

    lipster Well-Known Member

    Joined:
    Jul 20, 2012
    Member:
    #83026
    Messages:
    332
    Gender:
    Male
    First Name:
    Mike
    Northern MN
    Vehicle:
    2004 ext cab 3.4 auto TRD
    License plate frame
    I did not mean to imply the truck has to be off. Only that if you have it off, and are in a real quiet place, especially next to a wall, you can roll down your window and hear the actuators click and whirr, to see if you are doing it right.

    Yes, your actuator can be bad, and there is also a 4 WD computer module. I doubt if that is the issue though. I've had trouble when I first got mine as well. Has to be done in exactly the right sequence for 4 LO.
     
  9. Sep 9, 2012 at 8:32 AM
    #9
    ian408

    ian408 Well-Known Member

    Joined:
    Nov 8, 2009
    Member:
    #25619
    Messages:
    10,684
    Gender:
    Male
    First Name:
    Ian
    Santa Clara, CA
    Vehicle:
    09 Tacoma
    3" lift, custom rims, snug top shell, shrockworks bumper, warn winch.
    Pretty sure it's brake & clutch. Not just clutch.
     
  10. Sep 9, 2012 at 9:31 AM
    #10
    landphil

    landphil Wishin' I was Fishin'

    Joined:
    Mar 3, 2011
    Member:
    #52290
    Messages:
    1,814
    Gender:
    Male
    BC, Canada
    Vehicle:
    '06 D/C 4wd 6spd 1GR-FE
    Start by shifting into 4hi on the fly like you did. Then you have to be completely stopped and clutch floored, like when you start it. You have to get that part right BEFORE turning the switch to 4lo, if you are still moving a bit or don't have the clutch all the way down when turning the switch to 4lo, it won't retry until you cycle the 4wd switch back to 4hi, then 4lo again.

    The procedure is essentially the same for shifting back to 4hi.

    If that doesn't work, its possible the limit switch in the t-case actuator is faulty, possibly just dirty or gummed up from not being used. The motor in the actuator is fine if it shifts to 4hi. Search here for DIY on disassembly and cleaning.
     
  11. Sep 9, 2012 at 9:35 AM
    #11
    benbacher

    benbacher Purveyor of Fun Vendor

    Joined:
    Jun 29, 2011
    Member:
    #59032
    Messages:
    8,313
    Gender:
    Male
    First Name:
    ^
    Anchorage, AK
    Vehicle:
    '10 Tacoma 4x4 LBDC SR5 TRD Sport
    Too many to list now.
    I know for autos you have to be in neutral, maybe its the same for manual? Mine will beep at me if I try to put it in in gear. Perhaps that's what yours is doing too.
     
  12. Sep 9, 2012 at 9:42 AM
    #12
    chilidogrc

    chilidogrc Skewpage

    Joined:
    Aug 22, 2009
    Member:
    #21561
    Messages:
    2,545
    Gender:
    Male
    First Name:
    Rodrigo
    San Diego
    Vehicle:
    05 AC Sport 4x4
    King RR Coilovers, FM 40, Allpro rear bumper, OME Dakar leafs, rear 5100's, Snugtop Rebel shell, Treadwright tires, Allpro apex front plate bumper, triple hella 700's, Blacked out headlights, CF hood, weathertech floor mats
    Mine won't go into 4lo as well, tried all the suggestions. 4hi is fine, I can hear it engage and disengage. I have the 6sp trans.
     
  13. Sep 9, 2012 at 9:45 AM
    #13
    Maticuno

    Maticuno Weapon Mechanic

    Joined:
    May 26, 2011
    Member:
    #57287
    Messages:
    2,158
    Gender:
    Male
    California High Deserts
    Vehicle:
    08 DCLB Sport
    Pioneer AVIC-D3, SWI-PS, Sirius Satellite Radio, 2X In-Cab 110V Outlets, Constant Fog Light Mod, Inverter Always 400W Mod, Anti-Pack-Rat-In-Intake Mod, Eibachs on 5100's, 2" Toytec AAL, B.A.M.F Rear Diff Skid, 265/70R17 Goodyear Wrangler Authority tires
    The only gear position that the manual transmission senses is reverse. Having the stick in neutral might help, but I don't think its necessary in this case.
     
  14. Sep 9, 2012 at 10:09 AM
    #14
    Straightshot

    Straightshot [OP] Active Member

    Joined:
    Sep 1, 2012
    Member:
    #85986
    Messages:
    26
    Gender:
    Male
    First Name:
    Justin
    Utah
    Vehicle:
    2005, sr5
    Add A leaf, and new front coils.
    Thanks everyone. Tonight when i get home I will keep playing with it and try some more. If all else fails my father inlaw is a mechanic and i'm sure he can help me clean it and check it out.
     
  15. Sep 9, 2012 at 10:28 AM
    #15
    ian408

    ian408 Well-Known Member

    Joined:
    Nov 8, 2009
    Member:
    #25619
    Messages:
    10,684
    Gender:
    Male
    First Name:
    Ian
    Santa Clara, CA
    Vehicle:
    09 Tacoma
    3" lift, custom rims, snug top shell, shrockworks bumper, warn winch.
    The key is the truck being stopped. If the foot brake is on and the clutch depressed, the truck is stopped. For an automatic, neutral is the same as the clutch being depressed.
     
  16. Sep 9, 2012 at 1:45 PM
    #16
    benbacher

    benbacher Purveyor of Fun Vendor

    Joined:
    Jun 29, 2011
    Member:
    #59032
    Messages:
    8,313
    Gender:
    Male
    First Name:
    ^
    Anchorage, AK
    Vehicle:
    '10 Tacoma 4x4 LBDC SR5 TRD Sport
    Too many to list now.
    So it's not worth trying in neutral?
     
  17. Sep 9, 2012 at 2:22 PM
    #17
    ian408

    ian408 Well-Known Member

    Joined:
    Nov 8, 2009
    Member:
    #25619
    Messages:
    10,684
    Gender:
    Male
    First Name:
    Ian
    Santa Clara, CA
    Vehicle:
    09 Tacoma
    3" lift, custom rims, snug top shell, shrockworks bumper, warn winch.
    There are a couple of reasons why not. One is that there is no "neutral" switch. Second is there is a switch that detects the clutch being depressed.

    If it doesn't work, by all means try.
     
  18. Sep 9, 2012 at 7:26 PM
    #18
    hakabo

    hakabo Well-Known Member

    Joined:
    Jan 8, 2012
    Member:
    #70209
    Messages:
    385
    Gender:
    Male
    First Name:
    Jacob
    Concord, NC
    Vehicle:
    08 urban runner 4x4
    does keep flashing mean the little green light on the dash was flashing when you were in 4hi? i had that same problem, ended up that i had no power to the front axle when trying 4x4 (which was impressive since i thought i had it and hit serious mud w/out getting stuck). i took it to a local repair shop, paid $50 for them to diagnose the no power thing, opted not to pay like $500 for them to fix it, and it started working on the way home.

    ive read in other threads that a lack of use causes the actuator to stick, you just have to smack it and keep trying to use it for it to fully engage
     
  19. Sep 9, 2012 at 7:56 PM
    #19
    username

    username Fluffer

    Joined:
    Oct 15, 2010
    Member:
    #44704
    Messages:
    4,419
    Pendleton, Or
    Vehicle:
    05 Taco with some crap welded to it
    mostly stock
    The actuators in the front end and T-case are shit. For some reason they collect condensation, which corrodes the terminals. You can take them apart and clean the sludge out, but if there is pitting present they won't last long. I ended up converting mine to a manual shift (hillbilly engineering method).
     
  20. Sep 10, 2012 at 4:46 PM
    #20
    Straightshot

    Straightshot [OP] Active Member

    Joined:
    Sep 1, 2012
    Member:
    #85986
    Messages:
    26
    Gender:
    Male
    First Name:
    Justin
    Utah
    Vehicle:
    2005, sr5
    Add A leaf, and new front coils.
    Looks like I will be braking into mine. I just spent the last 30 minutes trying everything possible and it still won't engage. Thanks for all of the help guys.
     
To Top