is there any way to lower the PSI on a 2009 superduty. i think my dad said his were set at 70 psi..which is way to much

 

If you lower it to the pressure you want the light will be on ... just gonna have to break out the black tape

 

well...what i ment was lower the computer...he said they are set for 70psi..can you reprogram the computer for a lower psi..maybe about 50 or so.

 

No, it is determined by the type and load range of the tires on the vehicle. The light should not come on unless it is below a threshold for that particular LR tire and vehicle. If he is running the tires at a lower pressure than what is safe for that tire (not talking about recommended pressure) then there is a good possibility of tire damage and blowout/tread separation on the tires at highway speeds.

 

do you mean you want to change the PSI point at which the computer thinks your tires are too low?

 

geez yes! couldnt word it right.

 

I don't think there is a way to lower the psi that the computer is set to trigger the light. I'm not sure what PSI the SD's are set at. Just lower the pressure and see when the light is triggered. I think you will be surprised how low you can go without triggering the TPMS light.

 

pressure lower then whats on the door jam should trigger it

 

most vehicles have a tolerance based on the recommended specs, sometimes its as much as 10PSI lower then recommended before the light sets.

As for overriding the computer you could always make a TPMS bomb
http://www.clublexus.com/forums/is-s...pipe-bomb.html

 

Those pipe set ups don't really work. Ford sensors are in battery save mode (sleep) when not in motion. It takes at least 2 minutes of driving at 20 mph or more to wake them up.

 

Could you switch out the sensors from a different vehicle like and F-150 that runs at 35 PSI?
Just thinking?

 

No, I don't think that would work.

 

I know it sucks when they break lol the bands that hold the sensor to the wheel dont hold extremely wheel sometimes i have to duct tape them to the wheel ..