TPMS psi ?

[Been Around]

Originally Posted by cobraracing

That is what i adjusted the pressures to cold

Assuming you have E-range tires, 45 cold is low. Check the sticker on your doorsill. Those cold pressures listed are just that. Don't try to guess what they might reach warm. All you'll do is increase tread wear and lower gas mileage. No need to get tricky with air pressure. You'll notice that when you raise cold pressures to the recommended levels, that they will gain less heat and pressure warm than they did when you started out where you are now. Tires don't mind pressure as much as heat. Temperature/pressure-related blowouts are caused by low cold pressures, not high cold pressures. The heat gain on an underinflated tire is tremendous. Been there!

[sledfreak]

the door sil say's 65 p.s.i but the tire's say 80 p.s.i. cold i have 20's. i run 70 up front 67 rear.

[DSL_PWR]

Well I have found that I can run mine at 58 psi and the sensor does not come on and the truck rides better.. Going to have to see about getting the truck reprogrammed pretty soon as I plan to get new rims and tires..

[mark2910]

Mine come on with 2 or 3 pounds under whats on the door my door says 60 front 80 in the rear! I wish I could lower the back to fifty when not loaded rear end jumps around on rough roads. Dealer said they couldn't change settings.
Another case of the Government getting too involved!!

[DSL_PWR]

Well I think I have found a dealership that will do the reprogram and as soon as I confirm the process I will post my results. The dealership I bought my truck from has a shop that does all their lifts, wheel/tire combos and they DO reprogram them or so I have been told by 3 people that had their trucks lifted and went with a different tire/wheel combo.. So I will post back once I confirm..

[Harley350]

Originally Posted by DSL_PWR

Well I think I have found a dealership that will do the reprogram and as soon as I confirm the process I will post my results. The dealership I bought my truck from has a shop that does all their lifts, wheel/tire combos and they DO reprogram them or so I have been told by 3 people that had their trucks lifted and went with a different tire/wheel combo.. So I will post back once I confirm..

If this is true it will be the first successful re-programming of the TPMS I've heard of. Good Luck!

Please post your results.

[firemansdiesel]

I don't even go off what the door says. They are always too high and you get a stiff ride and/or you wear your tires out quicker in the center of the tires. I go as low as I feel is a good ride and make sure the whole tread makes contact. Especially for bigger size tires or going to a D rated tire from a E rated since the preesures are lower for max inflation.

When I tow/haul heavy then I inflate up near max of the tire rated psi. The only time I do that. The TPMS light will be hassle until something comes out to adjust the warning light w/ certain psi.