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Truck Acceleration Prob After lift

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Masomase, Jul 16, 2011.

  1. Jul 16, 2011 at 4:43 PM
    #1
    Masomase

    Masomase [OP] Member

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    Ever since I put my lift on I have been having an acceleration problem. It is when I go to pass and I put the accelerator to the floor it doesnt take off, it revs up to fourish and stays going the same speed. I am dumb founded with what is going on with my truck. The lift is a Radflo complete lift kit form toytec I bought TC uppers with them, it is set to 2.5 I do believe.
     
  2. Jul 16, 2011 at 4:47 PM
    #2
    dbronzo

    dbronzo Protected by Armor Tech Offroad

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    what size tire are you running?
     
  3. Jul 16, 2011 at 4:51 PM
    #3
    Masomase

    Masomase [OP] Member

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    245/75/17 had them before the lift if that helps any.
     
  4. Jul 16, 2011 at 4:55 PM
    #4
    dbronzo

    dbronzo Protected by Armor Tech Offroad

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    on that note no, I know that when I lifted and put bigger, heavier tires on that I lost some umph.
     
  5. Jul 16, 2011 at 5:05 PM
    #5
    Masomase

    Masomase [OP] Member

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    Oh no it it has good power. Just when I floor it to pass someone, it will not accelerate any. It stays at the same speed no matter how long I hold it for.
     
  6. Jul 16, 2011 at 5:08 PM
    #6
    08pretaco

    08pretaco Almost there

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    disconnect the negative terminal for a bit then drive it around, maybe it just needs reset
     
  7. Jul 16, 2011 at 5:12 PM
    #7
    Steves104x4

    Steves104x4 Well-Known Member

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    BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.
    Go underneath the truck and look around the transmission for any loose wiring. Check TPS and MAF sensors are plugged in. Check your fuel line isn't bent or crimped on something. Is (I know this is dumb) your emergency brake off? Check the emergency brake cables aren't pulled tight.
     
  8. Jul 16, 2011 at 5:22 PM
    #8
    Masomase

    Masomase [OP] Member

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    I am pretty sure my ebrake isnt on use it now and then. I will go check sensors now.
     
  9. Jul 16, 2011 at 5:42 PM
    #9
    Masomase

    Masomase [OP] Member

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    Well sensors are plugged in and wires look good, and no crimps in the brake lines. Anything else worth trying? Also unplugged the battery for awhile
     
  10. Jul 16, 2011 at 6:04 PM
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    babytruck

    babytruck Babytruck, babytruck...I've got a babytruck :)

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    O iono...tranny fluid?
     
  11. Jul 16, 2011 at 6:06 PM
    #11
    Steves104x4

    Steves104x4 Well-Known Member

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    BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.
    I'm not a mechanic; I think you need a pro to look at it.
     
  12. Jul 16, 2011 at 7:11 PM
    #12
    Masomase

    Masomase [OP] Member

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    Yeah asked my cousin who just happens to be a mechanic and he was puzzled, he said get on here and ask since you guys have helped before. I am to scared to take it to the stealership and have them take a look.
     
  13. Jul 16, 2011 at 7:21 PM
    #13
    joes06tacoma

    joes06tacoma Well-Known Member

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    Does it feel like the transmission is slipping? Does the engine seem to rev up freely but the truck goes nowhere? Or is it more like the engine is straining and can't accelerate?

    You say it has good power, but stays at the same speed when you floor the gas? That would seem like a lack of power to me unless the engine is revving up but not actually accelerating the truck.

    What else happened during the lift install? Did you mess with any wiring? Drain any fluids and have to refill? Is the check engine light on?
     
  14. Jul 16, 2011 at 7:32 PM
    #14
    babytruck

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    Hows the tranny fluid level?
     
  15. Jul 16, 2011 at 7:37 PM
    #15
    4WD

    4WD cRaZy oLdmAn

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    Sounds like you mean its not downshifting into "passing gear"...
     
  16. Jul 16, 2011 at 7:41 PM
    #16
    OZ-T

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    Sounds like it is taking a while to unlock the torque converter and downshift to 4th
     
  17. Jul 16, 2011 at 7:42 PM
    #17
    sean266

    sean266 #ThinBlueLine Moderator

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    Curious what the issue is...
     
  18. Jul 16, 2011 at 7:43 PM
    #18
    ColoradoTaco

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    thats my thought too your getting the rpms but no umph.....with the same tires there should be no change just a little more wind resistance from the added hieght but not enough to even notice. I would focus on the tranny thats my 2 cents
     
  19. Jul 16, 2011 at 8:05 PM
    #19
    babytruck

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    Tranny fluid perhaps?
     
  20. Jul 16, 2011 at 10:19 PM
    #20
    gainman

    gainman Semper Fi

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    some cars have a "limp mode" when something is wrong. scan the computer see if anything comes up.
     
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