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Speedometer/Odometer incorrect

Discussion in '2nd Gen. Tacomas (2005-2015)' started by gsm, Jun 18, 2008.

  1. Jun 18, 2008 at 6:55 PM
    #1
    gsm

    gsm [OP] Well-Known Member

    Joined:
    Nov 10, 2007
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    #3426
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    Raleigh, NC
    Vehicle:
    08 Tacoma Regular Cab, 2.7L, Impulse Red Pearl
    DIY OEM Fog Lights on anytime, DIY OEM Cruise Control, Removed 2ndary Air Filter, Rear Speakers Mod, Traction Bar/Helper Spring Mod, Red Brake Drums and Rotors, Stainless Steel Exhaust Tip, Door Sill Protectors, Taco Bed Mat, Custom Front Mud Flaps (Mudguards), TRD Bucket Seats (pending)
    I have a standard, 5 Lug Regular Cab running stock tires. I have always felt that I was going slower than it was stating and I now have possible proof.

    Running 70 mph with the cruise on, my GPS "every time" states I'm going 65 mph. Now I thought as most of you are thinking that the GPS probably is at error. Last week I picked up my wifes new '08 Honda Civic with a digital odometer. Every time I put her car at 70 mph with cruise on the same GPS locks in at 70 mph. Why would my Taco at 70 mph display 65 every time on the GPS while the new Civc constantly shows it right on. I truely believe the Taco is displaying incorrect speed and mileage.

    This means that not only am I not going as fast as I select - but the odometer is racking up mileage faster than true mileage shortening the tme between maintenance/warranty from the odometer readings point of view.

    When these stock tires wear out I am planning on putting on 16" rims with 215/70/16 vise the stock 215/70/15's. Adding in looks with better looking rims/tires plus should bring the odometer reading closer to true.

    Just thought others might find this true with their taco as well.
     
  2. Jun 18, 2008 at 7:54 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    The speedos on Tacomas have always been about 5 mph faster than actual. The ODO is correct, however. Check your ODO against the GPS. If it is indeed in error, call the 800 # in your manual. FWIW, Both my Tacomas gpsed the correct amount of miles untill I changed tire sizes. Then they were a little behind, as I went with bigger tires. :)
     
  3. Jun 19, 2008 at 12:40 PM
    #3
    gsm

    gsm [OP] Well-Known Member

    Joined:
    Nov 10, 2007
    Member:
    #3426
    Messages:
    143
    Raleigh, NC
    Vehicle:
    08 Tacoma Regular Cab, 2.7L, Impulse Red Pearl
    DIY OEM Fog Lights on anytime, DIY OEM Cruise Control, Removed 2ndary Air Filter, Rear Speakers Mod, Traction Bar/Helper Spring Mod, Red Brake Drums and Rotors, Stainless Steel Exhaust Tip, Door Sill Protectors, Taco Bed Mat, Custom Front Mud Flaps (Mudguards), TRD Bucket Seats (pending)
    I haven't checked the odometer for acuracy but I will whe I get back from this trip. Maybe it's old school thinking but odometers and speedometers use to work in unisen (spelling) off each other. Maybe it's not the case with the taco's - as I said I'll check it out when I get back home.
     
  4. Jun 19, 2008 at 4:41 PM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
    Tenoe, AZ
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    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    They used to. The speed signal goes to the computer, then to the ODO. A seperated signal goes to the speedo. :)
     
  5. Jun 19, 2008 at 5:23 PM
    #5
    jhodge83

    jhodge83 Any dog under 50# is a cat and cats are useless... Moderator

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    Jamie
    Moncks Corner, SC
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    09 Timberland Mica DC 4WD Sport
    wat?
    my speedo was off by 2-3 mph, but odo was right on.....now that i've added bigger tires, the speedo is dead on but the odo reads slow....EXTENDED WARRANTY!!!!! haha
     
  6. Jun 19, 2008 at 5:36 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
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    4.10 gears, sliders, and lots of buttons.
    :thumbsup:
     
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