"The United States government has passed legislation that requires all new passenger vehicles (beginning with 2007 model year vehicles) to be equipped with tire pressure monitoring systems."
This is how the one in the ranger works:
use the vehicle's antilock braking system's wheel speed sensors to compare the rotational speed of one tire vs. the others. If one tire is low on pressure, it will roll at a different number of revolutions per mile than the other three tires, and alert the vehicle's onboard computer.
No need to worry about rims or tire size, just make sure all 4 are the same.
1973 Dodge Charger, Cali car, 360 CI, 904 tranny. For Jacob Juelich 1982-2008
1975 Cadillac Coupe deVille Cerise Firemist, not pink!
1998 Dodge Ram 1500 4X4 with 38K miles as of 11/24/08
Formerly owned about 10 Rangers and RBV's
Originally Posted by John Quincy Adams
"you will never know how much it has cost my generation to preserve your freedom. I hope you will make good use of it.”