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Tire Preesure

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Deaftoyota, Jun 25, 2012.

  1. Jun 25, 2012 at 9:37 AM
    #1
    Deaftoyota

    Deaftoyota [OP] New Member

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    I got a 2009 Tacoma DCSB TRD Sport, include TPM. I want to check the tire Pressure correct but I don't know what pressure current for TPM, 29 or 40?

    The Tire is Bridgestone H/T 684II
    P265-65-R17
    Tire sidewall said 44 psi
    Label on the side of door said 29 psi
    Manual book said 29 psi
     
  2. Jun 25, 2012 at 9:54 AM
    #2
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    That sidewall rating I believe is the max rating, not for normal, everyday driving. The door jamb and manual are a guideline. The most accurate way to determine the proper pressure is to do the chaulk test and pay attention when you rotate your tires.

    Chaulk test is very easy, just draw a chaulk line across the width of the tire tread, drive a short distance (no turns, just straight), stop and inspect the line. If it's worn in the center and not the edges, your pressure is too high, if it's worn on the sides and not the center, your pressure is too low.
     
  3. Jun 25, 2012 at 3:08 PM
    #3
    iroh

    iroh Well-Known Member

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    Consider 29 to be the minimum on the road. Anything under that will lead to more heat and a tire is much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much much more likely to blow out from underinflation than overinflation.

    It would be a good idea to stay within the tire mfr's specs so don't go over 44.

    Experiment for the pressure you need. Some like it closer to the min, some like it clear up to max sidewall. There's tradeoffs for each direction. Consider wear, ride comfort, the loads you'll be carrying, the weather conditions you'll be driving in, and so forth. If it's an LT tire, you'll have to pick the right pressure for even wear. A passenger tire (radial) shouldn't wear fast in the center like an LT tire will at higher pressure.

    Once you have it where you want do the TPMS reset procedure in the manual and it'll work off your new pressure.

    Chalk test is good, but also watch for wear patterns in the long run.
     
  4. Jun 25, 2012 at 3:40 PM
    #4
    jtgroce

    jtgroce Got R Did

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    34psi is a good pressure
     
  5. Jun 25, 2012 at 4:35 PM
    #5
    WV150

    WV150 Well-Known Member

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    I agree,34 works great. The manual says if running at high speeds the tires should have an extra 3 lbs of pressure more than the door sticker says.
     

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