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

Strange Engine Noise

Discussion in '2nd Gen. Tacomas (2005-2015)' started by FrijolPower, Apr 5, 2012.

  1. Apr 5, 2012 at 10:23 AM
    #1
    FrijolPower

    FrijolPower [OP] Member

    Joined:
    Apr 4, 2012
    Member:
    #76291
    Messages:
    7
    Gender:
    Male
    First Name:
    Manuel
    San Diego
    Vehicle:
    2008 PreRunner TRD SR5
    TRD Skid Plate, TRD FJ Cruiser Special Edition Matte Black Wheels, TRD CAI TRD Cat Back, TRD Bed extender
    Been looking for answers on existing threads, but nobody seems to be having the same issue I am. First a little background I have a 2008 PreRunner TRD Off Road, it has 40K (mostly babied) miles on it, I have added a TRD CAI and TRD Cat back.

    In the last couple of weeks I have noticed a strange sound from what appears to be the engine. The best way to describe it is a cross between a tap and creaking sound. Imagine holding a piece of foil taut and dropping metal ball bearings on it (sounds strange but the best way I can describe it). I have noticed it most uphill at low RPM (1000 to 1500) in that between gears area - truck has shifted to a higher gear before ascending up hill and hasnt shifted down yet and I havent given more gas.

    I have checked for any loose parts in the engine compartment that might be creating the sound and havent found anything - any ideas?
     
  2. Apr 5, 2012 at 11:23 AM
    #2
    azreb

    azreb Geezer

    Joined:
    Mar 7, 2012
    Member:
    #74430
    Messages:
    338
    Gender:
    Male
    AZ mountains
    Vehicle:
    09 4x4 stock
    camper shell, platform to replace rear seats.
    Sounds like pinging. Preignition when under a strain. I haven't experienced it with any later model, computer controlled engine, though. Maybe that is just because of better sound insulation. The best way to stop it is to shift to a lower gear. A little bit of pinging won't hurt anything, but it is probably best to avoid it.
     
  3. Apr 6, 2012 at 9:31 AM
    #3
    FrijolPower

    FrijolPower [OP] Member

    Joined:
    Apr 4, 2012
    Member:
    #76291
    Messages:
    7
    Gender:
    Male
    First Name:
    Manuel
    San Diego
    Vehicle:
    2008 PreRunner TRD SR5
    TRD Skid Plate, TRD FJ Cruiser Special Edition Matte Black Wheels, TRD CAI TRD Cat Back, TRD Bed extender
    Thanks buddy! I won't worry too much about it for now, unless it gets worse - probably like everybody on here, I know EVERY sound my truck makes, even with music full blast I can hear the slightest change. Trips my wife out.
     
  4. Apr 6, 2012 at 9:37 AM
    #4
    Amo-cat3

    Amo-cat3 Wizard Sleeve Master

    Joined:
    Jan 26, 2009
    Member:
    #12980
    Messages:
    410
    Gender:
    Male
    Maui, Hawaii
    Vehicle:
    07 TRD Blown dubcab
    TRD Supercharged, 2.7" URD Pulley, APR X1, AFE Stage II intake, DT Longtubes, MBRP 2.5" dual exhaust w/ Vibrant Ultra resonator, URD Y-pipe w/ vibrant v-bands (Cat free), Walboro 255 fuel pump, SS Oil catch can, Aeroforce gauges, Leeper 2.5 coilover set at 3", 1.5" Alcan aal, Light racing uca, 17x8.5 Fuel Anza 4.5" backspace/-6 mm offset, m/t atz 265/70/17, 1.25 spidertrax, scanguage 2, AMP electric steps, bed extender, Low-pro tonneau cover, 20% tinted windows/headlights/taillights, tacoma seat covers, Image dynamic sound system w/ Pinoneer avh3200 head, assrtd stickers................
    Did you just install the exhaust? Could be an exhaust leak which could make the notorious toyota engine tick even louder.
     
  5. Apr 6, 2012 at 1:08 PM
    #5
    FrijolPower

    FrijolPower [OP] Member

    Joined:
    Apr 4, 2012
    Member:
    #76291
    Messages:
    7
    Gender:
    Male
    First Name:
    Manuel
    San Diego
    Vehicle:
    2008 PreRunner TRD SR5
    TRD Skid Plate, TRD FJ Cruiser Special Edition Matte Black Wheels, TRD CAI TRD Cat Back, TRD Bed extender
    No, I have had it in for about a year and a half, and the CAI intake for a little over a year.
     
  6. Apr 6, 2012 at 2:02 PM
    #6
    Maticuno

    Maticuno Weapon Mechanic

    Joined:
    May 26, 2011
    Member:
    #57287
    Messages:
    2,226
    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
    What brand and what octane fuel are you running?
     
  7. Apr 6, 2012 at 5:14 PM
    #7
    iroh

    iroh Well-Known Member

    Joined:
    Oct 18, 2011
    Member:
    #65439
    Messages:
    1,320
    Gender:
    Male
    michigander
    Vehicle:
    07 AC SR5 2.7 5MT 4x4
    tonneau
    Mine had a similar noise prior to my first plug change. I could even feel the low rpm stutter at times. The NGK bank had widened considerably by 30k and replacing them fixed it.

    You have 40k. Did you change them yet?
     
  8. Apr 6, 2012 at 7:32 PM
    #8
    joes06tacoma

    joes06tacoma Well-Known Member

    Joined:
    Jan 1, 2010
    Member:
    #28588
    Messages:
    3,061
    Gender:
    Male
    First Name:
    Joe
    Central Coast, CA
    Vehicle:
    06 4x4 Off Road Access Cab v6 6spd
    LEER Shell with dome lights operated with 3 way switches, aux backup lights with relay and 3 position switch, modified wiring to compass/temp display and clock to include switch that disables dimming function (poor man's DRL solution), Scan Gauge 2
    ^^This

    Mine pings on 87 octane in the situation that you describe.
     
  9. Apr 7, 2012 at 7:22 AM
    #9
    FrijolPower

    FrijolPower [OP] Member

    Joined:
    Apr 4, 2012
    Member:
    #76291
    Messages:
    7
    Gender:
    Male
    First Name:
    Manuel
    San Diego
    Vehicle:
    2008 PreRunner TRD SR5
    TRD Skid Plate, TRD FJ Cruiser Special Edition Matte Black Wheels, TRD CAI TRD Cat Back, TRD Bed extender
    I only fill it up with Tier 1 gas, and 87 octane. I am embarrassed to say i havent changed my plugs - I just bought some NGKs and was planning on installing them next weekend when I finally have a chance.

    Thanks for the advice!
     
  10. Apr 7, 2012 at 7:40 AM
    #10
    Maticuno

    Maticuno Weapon Mechanic

    Joined:
    May 26, 2011
    Member:
    #57287
    Messages:
    2,226
    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
    Plugs will make a noticeable difference. Top Tier 87 octane is fine for these engines.
     
  11. Apr 7, 2012 at 8:07 AM
    #11
    joes06tacoma

    joes06tacoma Well-Known Member

    Joined:
    Jan 1, 2010
    Member:
    #28588
    Messages:
    3,061
    Gender:
    Male
    First Name:
    Joe
    Central Coast, CA
    Vehicle:
    06 4x4 Off Road Access Cab v6 6spd
    LEER Shell with dome lights operated with 3 way switches, aux backup lights with relay and 3 position switch, modified wiring to compass/temp display and clock to include switch that disables dimming function (poor man's DRL solution), Scan Gauge 2
    I agree that the 87 isn't going to hurt the engine. The knock sensor will hear the ping and the ECM will back the timing off. But mine does ping on Chevron and Shell 87 octane. It's only for a second or two, then goes away. 89 or higher and it never pings. MPG goes up too. As always, YMMV.
     
To Top