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What's with the tire pressure??

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

  1. Oct 14, 2008 at 7:06 PM
    Gerry Pope

    Gerry Pope [OP] Well-Known Member

    Sep 12, 2008
    San Diego
    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. Oct 15, 2008 at 3:34 AM

    Janster Old & Forgetful

    Mar 25, 2007
    First Name:
    Lancaster, PA
    2007 4.0L 4x4 TRD Sport Access Cab A
    Husky floor mats, RuffTuff seat covers, C2C hood struts, Homelink mirror, USA Spec PA15-Toy (120gig Classic & 8gig nano, iPhone6), Garmin Nuvi 660, Protecta Bed mat, Pop-n-lock, New Frame & Leaf springs, Scangauge II, Heated drivers seat, Fumoto drain valve, Hood scoop graphics, 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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