Fuel System — part 2 of 2 — 1996 Jeep Grand Cherokee ZJ Service Manual

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Pages 1125–1127 · 3 pages · 0 words repaired

ZJ FUEL SYSTEM 14 - 61
Figure, page 1125
Fig. 85 Air Temperature Sensor—5.2L Engine

INTAKE MANIFOLD AIR TEMPERATURE SENSOR— 4.0L ENGINE The intake manifold air temperature sensor is installed into the intake manifold plenum near the throttle body (Fig. 86).

Figure, page 1125
Fig. 86 Intake Air Sensor Location—4.0L Engine

REMOVAL

(1) Disconnect the electrical connector from the sensor.

(2) Remove the sensor from the intake manifold.

INSTALLATION

(1) Install the sensor into the intake manifold. Tighten the sensor to 28 N·m (20 ft. lbs.) torque.

(2) Connect the electrical connector to the sensor.

VEHICLE SPEED SENSOR

The vehicle speed sensor is located on the speedometer pinion gear adapter (Fig. 87). The pinion gear adapter is located on the extension housing of the transmission (drivers side).

Figure, page 1125
Fig. 87 Vehicle Speed Sensor Location—Typical
Figure, page 1125
Fig. 88 Sensor Removal/Installation

REMOVAL

(1) Raise and support vehicle. (2) Disconnect the electrical connector from the sensor.

(3) Remove the sensor mounting bolt (Fig. 88). (4) Remove the sensor (pull straight out) from the speedometer pinion gear adapter (Fig. 88). Do not remove the gear adapter from the transmission.

14 - 62 FUEL SYSTEM ZJ

INSTALLATION

(1) Clean the inside of speedometer pinion gear adapter before installing speed sensor.

(2) Install sensor into speedometer gear adapter and install mounting bolt. Before tightening bolt, verify speed sensor is fully seated (mounted flush) to speedometer pinion gear adapter.

(3) Tighten sensor mounting bolt to 2.2 N·m (20 in. lbs.) torque.

(4) Connect electrical connector to sensor.

SPECIFICATIONS

VECI LABEL SPECIFICATIONS

If anything differs between the specifications found on the Vehicle Emission Control Information (VECI) label and the following specifications, use specifications on VECI label. The VECI label is located in the engine compartment.

TORQUE CHART

DESCRIPTION TORQUE Air Cleaner Housing Mount.

Nuts . . . . . . . . . . . . . . . . . . . . .10 N·m (93 in. lbs.) Engine Coolant Temperature Sensor—

All Engines . . . . . . . . . . . . . . . .11 N·m (96 in. lbs.) Fuel Hose Clamps . . . . . . . . . . . . .1 N·m (10 in. lbs.) IAC Motor-To-Throttle Body Bolts .7 N·m (60 in. lbs.) Intake Manifold Air Temp. Sensor—

All Engines . . . . . . . . . . . . . . . .28 N·m (20 ft. lbs.) MAP Sensor Mounting Screws—

All Engines. . . . . . . . . . . . . . . . .3 N·m (25 in. lbs.) Oxygen Sensor—All Engines . . . .30 N·m (22 ft. lbs.) Powertrain Control Module

Mounting Screws . . . . . . . . . . . . .1 N·m (9 in. lbs.) Throttle Body Mounting Bolts—

5.2L Engine . . . . . . . . . . . . . .23 N·m (200 in. lbs.) Throttle Body Mounting Bolts—

4.0L Engine . . . . . . . . . . . . . .12 N·m (108 in. lbs.) Throttle Position Sensor Mounting

Screws—All Engines . . . . . . . . . 7 N·m (60 in. lbs.) Vehicle Speed Sensor Mounting

Bolt . . . . . . . . . . . . . . . . . . . . .2.2 N·m (20 in. lbs.)

ZJ FUEL SYSTEM 14 - 63

SPECIAL TOOLS

FUEL SYSTEM

Figure, page 1127

Spanner Wrench—6856

Figure, page 1127

Fitting, Air Metering—6714

Figure, page 1127

Adapters, Fuel Pressure Test—6541, 6539, 6631 or

6923

Figure, page 1127

O2S (Oxygen Sensor) Remover/Installer—C-4907

Figure, page 1127

Test Kit, Fuel Pressure—5069

Figure, page 1127

Test Kit, Fuel Pressure—C-4799-B

Figure, page 1127

Fuel Line Removal Tool—6782