Ford 4L2Z-1A150-BB
TPMS Sensor

The tire pressure sensor servicing process begins by disassembling wheels and tires followed by installation of a new grommet seal to avoid air leakages. The procedure requires avoiding removal of the tire valve stem core for tire pressure relief. Replacement of the original valve stem core is necessary whenever the removal occurred after tire service. Using a damaged core can cause tire pressure loss from corrosion events. The tire pressure release process requires the sensor retaining nut's removal while pushing the sensor into the tire thus maintaining the valve stem at the 6 o'clock position. A suitable tire machine should be used to dismount tire beads while placing the valve stem hole at 270 degrees from the mounting fixture and writing valve stem and wheel weight locations before applying tire bead lubricant. You should both remove the tire pressure sensor and dispose of its grommet. Proper installation of the tire pressure sensor valve stem requires users to prevent damage by ensuring both correct and incorrect nut tightening as well as the replacement of the sensor grommet. Place tire lubrication along both the inside and outside beads before mounting these tire beads onto the rim and continue by pushing the tire sidewall to install the sensor while tightening the nut. Attach the air chuck straight onto the valve stem to prevent damage by using the Ford-recommended round head air chuck and inflate according to the pressure listed on the driver door jamb safety certification sticker. Complete the setup by installing the wheel with tire along with training the tire pressure sensors.

First steps for servicing the Tire Pressure Sensor include installing a new sensor grommet to stop air leaks while also avoiding removal of the valve stem core. First separate the wheel and tire assembly after which the components need to be removed according to the direction guides. The installation process should be done by following the removal steps in reverse order while training the tire pressure sensors. The tire pressure must be set to levels that appear on the safety certification sticker which is found on the driver door jamb. Before installing the sensor retainer nut check if the valve stem core was taken out because a new nickel-plated core replacement minimizes tire pressure loss from corrosion. Remove the sensor retaining nut when the valve stem points to the 6 o'clock position then drop the sensor inside the tire. The process of tire bead separation must occur with the valve stem mounting hole facing the 6 o'clock direction. An appropriate tire machine should separate both bead halves from the wheel to set up the tire-wheel assembly on the turntable with the valve stem hole located at 270 degrees from the mounting/dismounting fixture. Start by indexing the valve stem alongside wheel weight locations before applying tire lubrication to bead edges. Then proceed with dismounting the outer tire bead from the rim. During tire mounting make sure the tire bead stays stationary relative to the rim before you apply lubrication to install the outside bead onto the rim.

The first step for fixing the tire pressure sensor requires disassembly of the wheel assembly including tire components. A new sensor grommet installation prevents air leaks and you should keep the valve stem core inside the tire to maintain pressure. The tire pressure may suffer from corrosion and leakage if you fail to replace the original core or a nickel-plated one after removing the valve stem core. The sensor retaining nut needs removal to release tire pressure while the valve stem must remain at 6 o'clock as you push the sensor inside the tire. A suitable tire machine should remove both tire beads from their wheel while you align the wheel to place its valve stem hole at 270 degrees from the mounting fixture. First index both the valve stem and wheel weight positions followed by tire bead lubrication then remove the outside rim bead. Take out the tire pressure sensor after discarding the grommet. When installing the tire pressure sensor avoid excessive torque on the valve stem nut because this leads to damage and also avoid loose connections to prevent air leakage. Apply new grommets to the tire pressure sensor before lubricating it then mount the tire from both inside and outside layers on the rim without tire rotation interference. You should push the tire wall while installing the tire pressure sensor before securing the nut. The inflation process should not damage the valve stem because it requires the air chuck to be aligned directly with it while maintaining the recommended round head type by Ford. The tire pressure should be set at the level indicated on the safety certification sticker on the driver door jamb before installing the wheel and tire assembly while training the tire pressure sensors.

A technician should start tire pressure sensor service by removing entire wheels with their attached tires. Install a new sensor grommet to stop air escapes while avoiding the removal of the core from the valve stem. A faulty valve stem requires replacement of the original core unit or nickel-plated core if there is damage because not using these cores can cause tire pressure to decrease through corrosion. You should extract the sensor retaining nut to release pressure and then push the sensor inside the tire while positioning the valve stem at the 6 o'clock point. The tire separation process requires a suitable tire machine which should dismount both beads of tire while angling the valve stem hole 270 degrees from the mounting/dismounting fixture and either marking the wheel weight locations or creating wheel weight attachments. The tire bead needs lubrication before dismounting the outside bead. Take out the tire pressure sensor from its placement while discarding the grommet. The correct installation of the tire pressure sensor requires both under-tightening and over-tightening the valve stem nut to prevent damage or air leaks. The proper installation process requires replacing the grommet before adding lubrication to both tire beads for mounting onto the rim. You should use a tire wrench to press the tire side wall and tighten the sensor installation nut. The correct method to inflate the tire requires using a round head air chuck which aligns with the valve stem as Ford suggests. A digital or dial type tire pressure gauge serves best for accurate inflation by using the pressure value noted on the safety certification sticker inside the driver door jamb. The complete procedure requires the wheel installation together with tire assembly and training of tire pressure sensors.

Start repairing or servicing the tire pressure sensor by disassembling the wheel and tire assembly where you should additionally install a new sensor grommet to block air leaks. Keep the valve stem core in place when operating the tire pressure control. Tire pressure failure may occur when the valve stem core is missing so installation of a new nickel-plated core becomes necessary to stop corrosion from damaging the system. Free the tire pressure through the removal of sensor retaining nuts but drop the sensor into the tire while keeping the valve stem facing the 6 o'clock direction. A suitable tire machine should be used to separate the tire beads while maintaining the valve stem mounting hole located at 6 o'clock. Place the wheel-tire setup on the tire machine turntable so the valve stem hole faces 270 degrees away from the mounting/dismounting fixture before marking the valve stem and wheel weight positions and applying tire bead lubrication for outside bead dismountment from the rim. Take out the tire pressure sensor as you toss away the grommet. After placing the sensor in position you must tighten the retainer nut before mounting the tire while maintaining the rim and tire in a static relation. Apply lubrication to the outside tire bead before attaching it to the rim and follow the tire pressure value written on the safety certification sticker near the driver door jamb to inflate the tire. Complete the task by reattaching and training the tire pressure sensors followed by reinstallation of wheel and tire.

The tire pressure sensor service procedure begins with using a new sensor grommet to stop air leaks which excludes removing the valve stem core to drain tire pressure. Start by removing the wheel and tire assembly along with specified components according to order. The installation method requires you to execute the inverse order of removal steps then train the tire pressure sensors. Inflate the tire according to the tire pressure marked on the safety certification sticker which is on the driver door jamb. After taking out the sensor retainer nut, install a new nickel-plated core to seal the valve stem in case the core was removed because the corrosion and tire pressure degeneration risks. Next remove the sensor retaining nut when the valve stem faces the 6 o'clock position then let the sensor drop into the tire. Ensure the procedure of tire bead separation maintains the valve stem mounting hole positioned at the 6 o'clock point. A suitable tire machine should separate both beads from the wheel and place the wheel with tire on the turntable at 270 degrees from the mounting/dismounting fixture position. After performing index-marking on the wheel weight positions and valve stem locations apply tire lubricant to the bead of the tire before removing the outer bead from its position on the rim. Prevent tire rotation against the rim during installation by lubricating and placing the outside tire bead onto the rim.