Electronic Engine Controls: Removal & Installation Mercury Mountaineer III

REMOVAL AND INSTALLATION

1. Disconnect the camshaft position (CMP) sensor electrical connector.
2. Remove the bolt and the CMP sensor. To install, tighten to 6 N.m (53 lb-in).
3. To install, reverse the removal procedure.

Scheme 4

RH side

1. Remove the air cleaner (ACL) outlet pipe. For additional information, refer to «INTAKE AIR DISTRIBUTION AND FILTERING»(ref-270901) .
2. Disconnect the camshaft position (CMP) sensor electrical connector.
3. Remove the bolt and the CMP sensor. To install, tighten to 10 Nm (89 lb-in).
4. To install, reverse the removal procedure.

Scheme 5

REMOVAL

1. Remove the intake manifold. For additional information, refer to «ENGINE - 4.6L (3V)»(ref-270890) .
2. Remove and discard the 2 E-clips and disconnect the charge motion control valve (CMCV) linkages from the CMCV.
3. Rotate each CMCV shaft by hand to verify that they do not stick or bind.
4. Remove the 3 bolts and the CMCV.

INSTALLATION

1. Position the CMCV and loosely install the 3 bolts. Do not tighten the bolts at this time.
2. Rotate each CMCV shaft so that the plates are in the closed position.
3. Install the RH and LH CMCV plate alignment locks.
4. Connect the RH and LH CMCV linkages to the CMCV and install 2 new E-clips.
5. Verify that the CMCV plate alignment locks are still correctly located and tighten the 3 CMCV bolts. Tighten to 10 Nm (89 lb-in).
6. Remove the RH and LH alignment locks.
7. Install the intake manifold. For additional information, refer to «ENGINE - 4.6L (3V)»(ref-270890) .
8. Carry out the key ON engine OFF (KOEO) self test. For additional information, refer to «Introduction - Gasoline Engines»(ref-268480) .

Scheme 6

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-270881) .
2. Disconnect the crankshaft position (CKP) sensor electrical connector.
3. Remove the bolt and the CKP sensor. To install, tighten to 10 N.m (89 lb-in).
4. To install, reverse the removal procedure.

Scheme 7

Scheme 8

1. With vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-270881) .
2. Remove the accessory drive belt. For additional information, refer to «ACCESSORY DRIVE»(ref-270912) .
3. Disconnect the A/C compressor coil electrical connector.
4. Detach the battery cable retainer from the A/C compressor stud bolts.
5. Remove the nut and detach the A/C tube bracket. To install, tighten to 10 Nm (89 lb-in).
6. Remove the stud bolts and position the A/C compressor aside. To install, tighten to 25 Nm (18 lb-ft).
7. Disconnect the crankshaft position (CKP) sensor electrical connector.
8. Remove the bolt and the CKP sensor. To install, tighten to 10 Nm (89 lb-in).
9. To install, reverse the removal procedure.

Scheme 9

1. Disconnect the battery ground cable. For additional information, refer to «BATTERY, MOUNTING AND CABLES»(ref-270948) .
2. Remove the intake manifold. For additional information, refer to «ENGINE - 4.6L (3V)»(ref-270890) .
3. Disconnect the cylinder head temperature (CHT) sensor electrical connector.
4. Remove and discard the CHT sensor. To install, tighten to 26 Nm (19 lb-ft).
5. To install, reverse the removal procedure. Do not reuse the CHT sensor. Install a new sensor.

Scheme 10

1. Drain the cooling system. For additional information, refer to «ENGINE COOLING»(ref-270902) .
2. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
3. Remove the clip and the ECT sensor.
4. To install, reverse the removal procedure.

1. Release the fuel system pressure. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(ref-270952) .
2. Remove the intake manifold. For additional information, refer to «ENGINE - 4.0L SINGLE OVERHEAD CAMSHAFT (SOHC)»(ref-270889) .
3. Disconnect the fuel rail pressure and temperature sensor vacuum and electrical connectors.
4. Remove the bolts and the fuel rail pressure and temperature sensor. To install, tighten to 6 N.m (53 lb-in).
5. Remove and discard the O-ring seal.
6. To install, reverse the removal procedure. Lubricate the new O-ring seal with clean engine oil.

1. Release the fuel system pressure. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(ref-270952) .
2. Disconnect the battery ground cable. For additional information, refer to «BATTERY, MOUNTING AND CABLES»(ref-270948) .
3. Disconnect the fuel rail pressure and temperature sensor electrical connector.
4. Disconnect the fuel rail pressure and temperature sensor vacuum hose connector.
5. Remove the 2 bolts and the fuel rail pressure and temperature sensor. To install, tighten to 6 Nm (53 lb-in).
6. To install, reverse the removal procedure. Inspect the O-ring seal and install a new O-ring seal if necessary. Lubricate the O-ring seal with clean engine oil.

Scheme 11

1. For additional information, refer to the appropriate procedures.

Scheme 12

1. For additional information, refer to the appropriate procedures.

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-270881) .
2. If the RH heated oxygen sensor (HO2S) is being serviced, remove the bolts and position the heat shield aside. To install, tighten to 20 Nm (15 lb-ft).
3. Disconnect the HO2S electrical connector.
4. Using the special tool, remove the HO2S. To install, tighten to 41 Nm (30 lb-ft).
5. To install, reverse the removal procedure. Apply a light coat of nickel anti-seize lubricant to the threads of the HO2S.

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-270881) .
2. Disconnect the catalyst monitor sensor electrical connector.
3. Using the special tool, remove the catalyst monitor sensor. To install, tighten to 41 Nm (30 lb-ft).
4. To install, reverse the removal procedure. Apply a light coat of anti-seize lubricant to the threads of the catalyst monitor sensor.

Scheme 13

1. Remove the intake manifold. For additional information, refer to «ENGINE - 4.0L SINGLE OVERHEAD CAMSHAFT (SOHC)»(ref-270889) .
2. Disconnect the knock sensor (KS) electrical connector.
3. Remove the bolt and the KS. To install, tighten to 20 N.m (15 lb-ft).
4. To install, reverse the removal procedure.

Scheme 14

1. Disconnect the mass air flow (MAF) sensor electrical connector.
2. Remove the bolts and the MAF. To install, tighten to 2 N.m (18 lb-in).
3. To install, reverse the removal procedure.

Scheme 15

1. Disconnect the mass air flow (MAF) sensor electrical connector.
2. Remove the bolts and the MAF sensor. To install, tighten to 2 Nm (18 lb-in).
3. To install, reverse the removal procedure.

All vehicles

1. Retrieve the module configuration. Carry out the module configuration retrieval steps of the Programmable Module Installation procedure. For additional information, refer to «MODULE CONFIGURATION»(ref-270937) .
2. Remove the air cleaner. For additional information, refer to «INTAKE AIR DISTRIBUTION AND FILTERING»(ref-270901) .
3. Disconnect the RH front wheel speed sensor electrical connector. Remove the nut(s) and position the A/C tube bracket(s) and wiring harness aside.
4. Disconnect the PCM connectors.
5. Remove the bolts and the PCM.

All vehicles

1. Install the PCM and bolts. Tighten to 10 Nm (89 lb-in).
2. Connect the PCM electrical connectors.
3. Position the wiring harness and the A/C tube bracket(s) and install the nut(s). Connect the RH front wheel speed sensor electrical connector. Tighten to 7 Nm (62 lb-in).
4. Install the air cleaner. For additional information, refer to «INTAKE AIR DISTRIBUTION AND FILTERING»(ref-270901) .
5. Restore the module configuration. Carry out the module configuration restore steps of the Programmable Module Installation procedure. For additional information, refer to «MODULE CONFIGURATION»(ref-270937) .
6. Reprogram the passive anti-theft system (PATS). Carry out the Parameter Reset procedure. For additional information, refer to «ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS)»(ref-270956) .

Scheme 16

Scheme 17

Vehicles equipped with a 4.6L (3V) engine

1. Remove the air cleaner (ACL) outlet pipe. For additional information, refer to «INTAKE AIR DISTRIBUTION AND FILTERING»(ref-270901) .
2. Remove the bolts and position the heated PCV fitting and hoses aside. Remove and discard the O-ring seal.
3. Disconnect the throttle position (TP) sensor electrical connector.
4. Remove and discard the 2 screws and the TP sensor.

All vehicles

1. Position the new TP sensor and install the 2 new screws. Tighten to 3 Nm (27 lb-in).
2. Connect the TP sensor electrical connector.
3. Install a new O-ring seal, position the heated PCV fitting and install the bolts.
4. Install the ACL outlet pipe. For additional information, refer to «INTAKE AIR DISTRIBUTION AND FILTERING»(ref-270901) .

Scheme 18

1. Remove the valve cover. For additional information, refer to «ENGINE - 4.6L (3V)»(ref-270890) .
2. Remove the bolt and the variable camshaft timing (VCT) oil control solenoid. To install, tighten to 5 Nm (44 lb-in).
3. To install, reverse the removal procedure.