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What's with the tire pressure??

Discussion in 'Wheels & Tires' started by Gerry Pope, Oct 14, 2008.

  1. Gerry Pope

    Gerry Pope [OP] Well-Known Member

    Joined:
    Sep 12, 2008
    Member:
    #9177
    Messages:
    67
    San Diego
    Vehicle:
    07 4X4 PreRunner
    Hi all,
    Have had my 07 4X4 TRD for a month now.. After filling up I checked the tires.. They all had varying pressure.. 32-35 psi. This after the dealer showed me the 160 step diag. they performed!! Dontcha love it? I saw on the tires a max 44psi for seating the bead. Fine I says.. WTF.. I put 38 psi all the way around. Then a couple days ago I see mentioned here on the forums max psi should be 29?? Sheeeeeit.. That feels way tooo spongy. Looked in the doorwell.. Shonuff 29psi. That is where I left it.. It does not ride as well as it did when I had 38psi. First time I have had tires that do not have a max psi rolling rating.. Now I have something else besides the six speed manual to get used to... So, what gives?
     
  2. Janster

    Janster Old & Forgetful

    Joined:
    Mar 25, 2007
    Member:
    #1138
    Messages:
    13,567
    Gender:
    Female
    First Name:
    Jandy
    Lancaster, PA
    Vehicle:
    2007 4.0L 4x4 TRD Sport Access Cab A
    Advantage Torza top (tri-fold), Husky floor mats, RuffTuff seat covers, C2C hood struts, Homelink mirror, USA Spec PA15-Toy (120gig Classic & 8gig nano), Garmin Nuvi 660, Protecta Bed mat, Pop-n-lock, TSB Springs, Scangauge II, Heated drivers seat, Fumoto drain valve, Aries pushbar, PIAA 540 fog lights, Hood scoop grahics, Flowmaster 50 series dual catback exhaust, RainX Latitude windshield wipers, Husky rear floor liner (ontop of folded down seats). Console Vault.
    29 is the *recommended* pressure (not max pressure).

    It is spongy and why a lot of folks run higher pressure. I run about 32-34psi.

    Tire pressure can vary over time. Every few months when I check mine, I'll be lucky if one of them is actually at my optimal pressure. Sometimes they'll have dropped 4-5lbs psi. That's exactly why you should check them because it can vary and you can lose pressure. That's normal.
     
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