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Some vehicles built 11/29/2004 and prior may exhibit the wrench light on with both P2106 and P2135 diagnostic trouble codes (DTCs). ACTION: Replace the throttle position sensor (TPS) following the instruction sheet included in the TPS service kit. Reprogram the powertrain control module (PCM) to the latest calibration using WDS release B36.11 and higher, or B37.2 and higher. This new calibration is not included in the B37 CD. Calibration files are also available at www.motorcraft.com. CAUTION: FAILURE TO FOLLOW THE TPS REMOVAL AND INSTALLATION PROCEDURE WILL RESULT IN DAMAGE TO THE TPS SCREWS.

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Removal 1. Disconnect the battery ground cable. 2. I highly recommend taking the hood off. Mark where the bolts connect on the hood to ensure proper alignment upon re-installation. My trick was to use “white-out” to do this, comes with a nice little brush. 3. Remove the air cleaner outlet tube by loosening the clamp next to the MAF and the clamp next to the Throttle Body. 4. Disconnect the accelerator cable from the throttle body arm, and then unclip the accelerator cable from the speed control actuator cable. Move them out of the way. 5. Disconnect the vacuum hoses from the brake vacuum booster, EGR valve and crankcase ventilation hose. 6. Disconnect the wiring harness connectors from the EGR valve, the DPFE sensor, and the idle air control (IAC) valve. 7. Disconnect the DPFE sensor hoses. 8. Disconnect the throttle position sensor (TPS) harness connector. 9. Disconnect the throttle body vapor management hose. This is the small coolant hose that runs directly to a port on the bottom of the TB. 10. Disconnect the spark plug wires from the ignition coil.

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Some customers may comment on harsh shifting and/or delayed upshifts that may or may not be accompanied by a CHECK TRANS lamp illumination. Correction Perform the TPS relearn procedure below. Important: The TCM relearn procedure MUST be done after replacement or adjustment of the following components: • The injection pump • The engine assembly • The accelerator pedal • The accelerator cable • The throttle position sensor (TPS) • The kick-down switch • The TCM • The transmission Failure to do this may result in a hard shift, delayed shift, slippage or excessive automatic transmission clutch material wear conditions. The TPS relearn procedure should also be done when the following conditions occur: • Harsh shifting • Delayed upshifts • Take-off in fail-safe mode (2nd gear) • Flashing Check Trans light (no stored codes) TPS Relearn Procedure If there is a change in the relationship between the TPS and the injection pump rack voltage, there will be a noticeable change in the shift pattern of the transmission. The TPS relearn is needed to provide the TCM with a correlation value between the TPS sensor and the injection pump rack position. It is this learned value that the TCM uses to produce the shift pattern for the transmission based on the TPS input during vehicle operation.

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1. Remove the air cleaner outlet tube. 1 Remove the hoses. 2 Loosen the clamps. 3 Remove the air cleaner outlet tube. 2. Remove the pin-type retainers and the accelerator cable splash shield. 3. Disconnect the throttle cable and the cruise control cable. 4. Disconnect the Throttle Position Sensor (TPS) and Idle Air Control (IAC) valve electrical connectors. 5. Disconnect the harness Tom the throttle body stud. 5. Disconnect the harness Tom the throttle body stud. 7. Disconnect the Positive Crankcase Ventilation (PCV) and Evaporative Emissions (EVAP) vacuum hoses. 8. Remove the EGR valve. 1 Disconnect the vacuum hose. 2 Remove the nuts. 3 Remove the bolts. 4 Remove the EGR valve. 9. Remove the EGR Vacuum Regulator (EVR) valve. 1 Disconnect the vacuum hose. 2 Disconnect the electrical connector. 3 Remove the bolts. 4 Remove the valve. 10. Remove the eight bolts and the upper intake manifold. Remove and discard the gaskets. Clean all mating surfaces.

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REMOVAL- UPPER 1. Disconnect negative cable from battery remote jumper terminal. 2. Disconnect Inlet Air Temperature (IAT) Sensor connector. Remove air inlet resonator and inlet tube. 3. Remove throttle cable and speed control cable from throttle arm and bracket. 4. Remove throttle cable bracket. 5. Disconnect electrical connectors from the following components: – Manifold Absolute Pressure (MAP) Sensor – Throttle Position Sensor (TPS) Sensor – Idle Air Control (IAC) Motor 6. Disconnect Vapor Purge hose, Brake Booster hose, Speed Control Servo, Positive Crankcase Ventilation (PCV) hose (Fig. 104). 7. Loosen upper fastener at throttle body support bracket 9. Remove upper manifold (Fig. 105). 10. Inspect manifold. INSPECTION Check manifold for: – Damage and cracks – Gasket surface damage or warpage – Damaged or clogged EGR ports