Ford F4SZ-9B989-A Engine Throttle Potentiometer

Before deciding that sensor failure has occurred, it is necessary to inspect wiring problems when troubleshooting the Throttle Position Sensor (TPS). The TPS is a potentiometer on the throttle body that sends throttle position to the PCM through a voltage signal. Surging or stalling may result from a faulty TPS. To test the TPS, disconnect the sensor and check the reference voltage, which should be around 5.0 volts with the ignition On and the engine off. Reconnect the sensor and measure the signal voltage, which should be 0.5 to 1.5 volts at closed throttle and increase steadily to 4.0 to 5.0 volts at wide-open throttle. Ensure that when closed, the meter reads less than 1.5 volts, and when fully open it gives about 5.0 volts reading on the multimeter display. There can be a need for advanced tests if those issues continue happening in your car engine system or have some effect on vehicle performance. Remove the snow shield (on 2001 and later models) to replace the non-adjustable TPS. Then, disconnect the electrical connector before firmly attaching the new sensor on the throttle body.

Start by relieving fuel pressure, disconnecting the battery cable, and removing the air intake plenum assembly on 5.0L engines or the air intake assembly on 4.6L engines. Use a special spring lock coupling tool to disconnect the fuel feed and return lines from the fuel rail assembly. Remove the four fuel rail assembly retaining bolts and carefully disengage the fuel rail from the fuel injectors. The installation process is the reverse of removal.

Remove the TP sensor mounting screws using the factory-recommended method, which involves loosening them one or two turns by hand and then removing them the rest of the way with a high-speed power driver.

The Brake On/Off switch or Brake Pedal Position (BPP) Sensor information states its role in indicating brake application and its location on the brake pedal assembly.

Begin by detaching the negative battery cable and disconnecting the throttle position sensor and throttle air bypass valve electrical connectors. Disconnect the accelerator cable, Throttle Valve (TV) cable (if equipped), and the PCV vent closure hose (if present). Remove the four throttle body mounting nuts, and on 5.0L engines, carefully separate the throttle body from the EGR spacer, discarding the gasket for 5.0L engines.

You should check terminal connectors for attachment, verify power, and adjust if necessary. Diagnostics require special tools.

The F4SZ.9B989.A is replaced by the F4SZ.9B989.AA

No, this part does not come with new bolts