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

2.7 stumbles like its starving for fuel.

Discussion in '4 Cylinder' started by TeddyBear, Sep 1, 2013.

  1. Sep 1, 2013 at 11:32 AM
    #1
    TeddyBear

    TeddyBear [OP] Member

    Joined:
    Feb 16, 2013
    Member:
    #97719
    Messages:
    9
    Gender:
    Male
    First Name:
    Andrew
    Rosepine, Louisiana
    Vehicle:
    2010 PreRunner
    MY fiancee and I just bought a 2010 toyota tacoma access cab prerunner, About seven months ago. Not long after we bought it I noticed it would start stumbling in second gear like it wasnt getting enough fuel and I would have to shift up to third to get it to stop. Ive scoured the internet but couldn't find any info. I don't believe its a dirty fuel filter, because it only does it in between 2nd an 3rd gear, Im leaning towards a dirty Maf sensor. I also don't believe it to be my spark plugs, But then again I'm no mechanic. It's my daily driver and i have to have it for the 140 mile round trip to work. Any suggestions? The truck only has 61,000 miles on it.
     
  2. Sep 1, 2013 at 11:36 AM
    #2
    MightyMouse-SCT

    MightyMouse-SCT Well-Known Member

    Joined:
    Oct 18, 2010
    Member:
    #44862
    Messages:
    15,500
    Gender:
    Male
    First Name:
    Gabriel
    O'SIDE CA
    Vehicle:
    MightyMouse-SCT - 2011 LT 4x4 Desert Runner
    Long Travel Total chaos kit, fox shocks, smp fab , dmz sua, glassworks, method wheels.
  3. Sep 1, 2013 at 12:00 PM
    #3
    Steves104x4

    Steves104x4 Well-Known Member

    Joined:
    Apr 17, 2010
    Member:
    #35468
    Messages:
    6,152
    Gender:
    Male
    First Name:
    Steve
    Buffalo NY
    Vehicle:
    2010 RC 2.7 4x4
    BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.
    I'd run a tank of fuel system cleaner through it for a week (to me it sounds like a fuel injector is sticking open) then drain the oil (let it drain overnight if possible) and replace the spark plugs. Check all the vacuum lines and air intake hoses are tight. Cleaning the maf is good, too. Good luck.
     
  4. Sep 1, 2013 at 2:20 PM
    #4
    2007 tacoma

    2007 tacoma Well-Known Member

    Joined:
    Feb 4, 2011
    Member:
    #50542
    Messages:
    238
    Gender:
    Male
    First Name:
    LEEEEEEROOOYYY JENKINS!
    Vehicle:
    2007 Access Cab
    16" Alloys, K&N intake, Class III Hitch, US Truck Cap Rack, Carpeted Bed Mat, WeatherTechs, SeatSaver covers, Many more in the works
    Red Line Oil SI‑1 from O'Reilly Auto Parts has made my vehicles run a lot better.
     
  5. Sep 1, 2013 at 5:01 PM
    #5
    TeddyBear

    TeddyBear [OP] Member

    Joined:
    Feb 16, 2013
    Member:
    #97719
    Messages:
    9
    Gender:
    Male
    First Name:
    Andrew
    Rosepine, Louisiana
    Vehicle:
    2010 PreRunner
    I'll try this first, I've ran stp fuel system cleaner through it. And the regular old stp gas treatment. Still did it, but wasn't as often.
     
  6. Sep 1, 2013 at 6:34 PM
    #6
    landphil

    landphil Wishin' I was Fishin'

    Joined:
    Mar 3, 2011
    Member:
    #52290
    Messages:
    1,779
    Gender:
    Male
    BC, Canada
    Vehicle:
    '06 D/C 4wd 6spd 1GR-FE
    Check or replace the spark plugs, they are due at 60,000 anyway if I'm not mistaken.
     
  7. Sep 1, 2013 at 6:51 PM
    #7
    2007 tacoma

    2007 tacoma Well-Known Member

    Joined:
    Feb 4, 2011
    Member:
    #50542
    Messages:
    238
    Gender:
    Male
    First Name:
    LEEEEEEROOOYYY JENKINS!
    Vehicle:
    2007 Access Cab
    16" Alloys, K&N intake, Class III Hitch, US Truck Cap Rack, Carpeted Bed Mat, WeatherTechs, SeatSaver covers, Many more in the works
    For reference:

    I went to BITOG when I was looking into it, and no one ever says anything bad about it. While many others are recommended also what makes me a user of it is the price and availability.

    If that doesn't help I don't think anyone has mentioned maybe having some water in the gas. Dry it up with HEET.

    Those made a huge difference in another vehicle I maintain. The SI-1 is a regular additive now in my Tacoma though.

    If it doesn't then other advice is more relative.
     
  8. Sep 9, 2013 at 5:32 PM
    #8
    TeddyBear

    TeddyBear [OP] Member

    Joined:
    Feb 16, 2013
    Member:
    #97719
    Messages:
    9
    Gender:
    Male
    First Name:
    Andrew
    Rosepine, Louisiana
    Vehicle:
    2010 PreRunner
    Update:
    I did a complete tune-up this weekend, Switched it over to synthetic oil, brand new oil filter, air filter, And brand new NGK Iridium spark plugs. My old plugs looked pretty damn good, Also no change it still does it. Maybe a dirty MAF? Im running out of ideas, and patience. I couldn't find the SI-1 additive any of the parts stores around here and the mouthbreather's behind the counter couldn't help me either. Ill order it in the next two weeks, and report back. Sorry to keep bothering, But This is an expensive investment and I'm getting aggravated.
     
  9. Sep 9, 2013 at 9:52 PM
    #9
    2007 tacoma

    2007 tacoma Well-Known Member

    Joined:
    Feb 4, 2011
    Member:
    #50542
    Messages:
    238
    Gender:
    Male
    First Name:
    LEEEEEEROOOYYY JENKINS!
    Vehicle:
    2007 Access Cab
    16" Alloys, K&N intake, Class III Hitch, US Truck Cap Rack, Carpeted Bed Mat, WeatherTechs, SeatSaver covers, Many more in the works
  10. Sep 9, 2013 at 10:03 PM
    #10
    tooter

    tooter play every day

    Joined:
    Apr 13, 2013
    Member:
    #102021
    Messages:
    2,393
    Gender:
    Male
    First Name:
    Greg
    Los Angeles
    Vehicle:
    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    Check all of the vacuum hoses. Sounds to me like there's an air leak.

    Also try this:

    Disconnect the cable on the negative battery terminal for around 5 minutes, and then reconnect it. This allows your ECU to relearn its operating parameters.
     
  11. Sep 9, 2013 at 10:53 PM
    #11
    Rich91710

    Rich91710 Well-Known Member

    Joined:
    Feb 23, 2012
    Member:
    #73470
    Messages:
    16,496
    Gender:
    Male
    First Name:
    Rich
    Los Angeles
    Vehicle:
    08 Base
    Satoshi with FJ badge, factory cruise, factory intermittent wipers, Redline Tuning hood-lift struts, Hellwig Swaybar, Rosen DVD-Nav
    Stumbling like it's starving for fuel in 2nd, but runs fine in 3rd, sounds to me like you're bouncing off the rev limiter.

    Just what are your RPMs when it starts "stumbling"?
     
  12. Sep 10, 2013 at 8:39 AM
    #12
    tooter

    tooter play every day

    Joined:
    Apr 13, 2013
    Member:
    #102021
    Messages:
    2,393
    Gender:
    Male
    First Name:
    Greg
    Los Angeles
    Vehicle:
    2012, std cab, 5 lug, 2.7, 5 speed
    Built for maximum low end torque, tooter II.VII intake manifold spacer, LCE long tube header, Injen long tube intake, 2,900 rpm torque peak.
    Sometimes the most simple explanation is the right one... ;)
     
  13. Sep 10, 2013 at 7:15 PM
    #13
    Rich91710

    Rich91710 Well-Known Member

    Joined:
    Feb 23, 2012
    Member:
    #73470
    Messages:
    16,496
    Gender:
    Male
    First Name:
    Rich
    Los Angeles
    Vehicle:
    08 Base
    Satoshi with FJ badge, factory cruise, factory intermittent wipers, Redline Tuning hood-lift struts, Hellwig Swaybar, Rosen DVD-Nav
    Been there a dozen times on the Vulcan. Not so much with the louder pipes, but when I put a set of quieter pipes on it, I was always hitting it getting on the freeway.
     
  14. Sep 11, 2013 at 1:01 PM
    #14
    TeddyBear

    TeddyBear [OP] Member

    Joined:
    Feb 16, 2013
    Member:
    #97719
    Messages:
    9
    Gender:
    Male
    First Name:
    Andrew
    Rosepine, Louisiana
    Vehicle:
    2010 PreRunner
    My rpm's aren't high at all, I would know if I was bouncing off the rev limiter. It's a problem tht only pops up from time time. Not speed or rpm related, I don't drive my vehicles like that.
     
  15. Sep 11, 2013 at 2:01 PM
    #15
    cdj1

    cdj1 Well-Known Member

    Joined:
    Apr 16, 2013
    Member:
    #102185
    Messages:
    1,285
    Gender:
    Male
    First Name:
    Clint
    Portsmouth, VA
    Vehicle:
    97 Tacoma
    King Extended travel coilovers, 5100 Shocks, Daystar shackles,OME Leaf Springs,255/85/16, front diff drop, RAT skid plates, 4.56 gears, LSD in rear, Aussie locker in the front, Front Range Offroad twin sticks, trail gear/ Bash Fab rear bumper, elite off road front bumper and sliders, warn m8000 winch, in cab winch control
    My truck is a 1st gen but has the 2.7L. I had issues similar but it finally threw a code for the throttle position sensor.
     
To Top