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Old 04-11-2012, 06:23 PM   #1
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What PSI for 33X12.5OR17

Hey all,

I have 33X12.5OR17 tires and my tire pressure light just came on. Apparently they were inflated to 55psi by the company that installed them and the light wasnt on. I towed my boat today and mysteriously the tire pressure gauge came on. I called my dealership and they said to air down to 45PSI and drive 5 miles. I did that and it is still on. Any advice as to what PSI I should run? Stock I think was 33PSI but that seems too little for this size tire.
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Old 04-11-2012, 07:44 PM   #2
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Hey all,

I have 33X12.5OR17 tires and my tire pressure light just came on. Apparently they were inflated to 55psi by the company that installed them and the light wasnt on. I towed my boat today and mysteriously the tire pressure gauge came on. I called my dealership and they said to air down to 45PSI and drive 5 miles. I did that and it is still on. Any advice as to what PSI I should run? Stock I think was 35PSI but that seems too little for this size tire.
I went down to 35PSI and they dont look squaty. Ill drive it and see if the light goes off.

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Old 04-11-2012, 07:46 PM   #3
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35-37 psi
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Old 04-11-2012, 07:48 PM   #4
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They put in air to the max tires PSI not the PSI recommended for a Jeep for it's weight which is 37 psi
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Old 04-11-2012, 08:32 PM   #5
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thanks ill try 35 until the light goes off which I hear takes 15-20 miles??? Then maybe air back up to 37.
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Old 04-11-2012, 08:40 PM   #6
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Question

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Originally Posted by StealthJK View Post
Hey all,

I have 33X12.5OR17 tires and my tire pressure light just came on. Apparently they were inflated to 55psi by the company that installed them and the light wasnt on. I towed my boat today and mysteriously the tire pressure gauge came on. I called my dealership and they said to air down to 45PSI and drive 5 miles. I did that and it is still on. Any advice as to what PSI I should run? Stock I think was 33PSI but that seems too little for this size tire.
Have you considered chalking the tires to see what psi is right given the unique configuration and weight distribution of your Wrangler?
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Old 04-12-2012, 12:22 AM   #7
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I keep mine at 39 and have no problems.
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Old 04-13-2012, 08:48 AM   #8
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I just found the problem... I have no sensors... And Im not about to pay $400 for them since I only run these wheels in the warmer months.

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