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Tire pressure

Discussion in 'General 4Runner Talk' started by kris9549, Feb 5, 2021.

  1. Feb 5, 2021 at 8:58 PM
    #1
    kris9549

    kris9549 [OP] New Member

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    Does anyone elses Tire Pressure warning come on when it's extremely cold?
     
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  2. Feb 5, 2021 at 9:03 PM
    #2
    Mech-E

    Mech-E New Member

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    Tom Brady didn't deflate his balls!

    Ideal Gas Law.
     
  3. Feb 5, 2021 at 10:11 PM
    #3
    Mtbpsych

    Mtbpsych New Member

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    Air expands in hot temperatures, and does the opposite in cold temperatures.
     
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  4. Feb 6, 2021 at 11:02 AM
    #4
    mrmike7189

    mrmike7189 New Member

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    I run my tires a little higher in the winter ....higher psi to account for the low psi in extreme cold.
     
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  5. Feb 6, 2021 at 11:16 AM
    #5
    Starr

    Starr Life Off the Road, off the Grid

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    It's dynamic, what will optimize things best for today's situation. Tires will warm up when you hit the road, more if the tarmac is hot.
    I generally run 30psi cold, warming up to 33 on the slow dirt back roads I mainly drive. More if I were to be driving 60+ on the interstate.
    This is without load in the bed. When I carry 1000lbs in the bed of my Taco, I'll run 5-7lbs higher. If I'm in crawling in mud or sand or rock, I'll reduce pressure.
     
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  6. Feb 8, 2021 at 4:36 AM
    #6
    DGP1961

    DGP1961 New Member

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    To answer your original question yes your low pressure monitor is common to come on with a real sudden cold change in temperature. We also have a couple Honda's in the household and their notorious for doing just that. If it comes on in severe cold you may try leaving it to see if it goes out when the temps moderate. It'll drive you crazy and you'll be adding and taking pressure away if you try to adjust for it in the winter months.
     
    kris9549[OP] likes this.
  7. Feb 8, 2021 at 8:41 AM
    #7
    koukimonster

    koukimonster DYNO4

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    I always add air in the winter and never have to take it away later. Tires naturally seem to shed air as time goes on, so throw a little extra in when it gets cold and the car reminds me to. Then, by the time it warms up outside, some of that air has already leaked out, so my pressure is good for the summer. As it leaks out over the summer, it gets just low enough to where the cold air of winter causes it to be low enough to trigger the warning, and I repeat it all over again.
     
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  8. Feb 11, 2021 at 4:57 PM
    #8
    taco_runner

    taco_runner New Member

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    yes, I keep mine on 29 PSi during summer, and when it gets cold, tire pressure goes to 27 to 28 and I get the warning which doesn't bother me.
     
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  9. Feb 11, 2021 at 5:06 PM
    #9
    kmeeg

    kmeeg LionRunner

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  10. Feb 12, 2021 at 10:25 PM
    #10
    kris9549

    kris9549 [OP] New Member

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    Thanks all!
     
  11. Feb 18, 2021 at 5:51 AM
    #11
    mrmike7189

    mrmike7189 New Member

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    I went to Toyota for my toyotacare free oil change and they rotated the tires, and set my tire pressure to 40psi.
    I usually run 35 psi in the winter anyways since it is below zero windchills most everyday, but thought that was high?
    The tires are Bridgestone Dueler HT's
     
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  12. Feb 18, 2021 at 7:38 AM
    #12
    canadian.bacon

    canadian.bacon H9 halogen is the best led bulb

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    yea, 40 is too high - rougher ride, possible uneven wear in the center, longer braking distances, higher risk of cuts on potholes, etc
    remember, they will add a few PSI while driving too, especially on the highway
    depending where you are, if now cold and in 1-2 months hot, it will go even higher
     
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  13. Feb 18, 2021 at 7:52 AM
    #13
    koukimonster

    koukimonster DYNO4

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    Bigger A/T LT Tires, Slight Lift, Sliders, Rack, Lights, etc.
    40 PSI is too high for the stock tires which are a Passenger rated tire. The appropriate pressure for the stock tires is written on the door card - 32 PSI. Idiots working over there at your dealer's service dept., apparently.

    40 PSI is appropriate for an LT tire on the 4Runner.
     
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