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FUEL SYSTEMS 14 - 13

FUEL LEVEL SENDING UNIT

DIAGNOSIS

Refer to Group 8ÐElectrical

REMOVAL

The fuel tank must be removed to service the fuel sending unit. Refer to Fuel Tank Removal in this section.

(1)Using a hammer and brass drift punch, carefully tap lock ring counterclockwise to release sending unit.

(2)Lift level unit and O-ring away from tank (Fig.

4).

Fig. 4 Fuel Tank Sending Unit

INSTALLATION

(1) Wipe seal area of tank clean and place a new O-ring seal in position.

(3)Place sending unit in tank. Position lock ring in place. Using a brass drift and hammer, tap ring in a clockwise direction (Fig. 5).

(4)Install tank.

FUEL TANK PRESSURE RELIEF AND ROLL-OVER VALVE

REMOVAL

(1)Remove fuel tank. Refer to Fuel Tank Removal in this section.

(2)Wedge the blade of a screwdriver between the rubber grommet and the fuel tank where the support rib is located (Fig. 6). Do not wedge between the valve and the grommet. This could damage the valve during removal.

(3)Use a second screwdriver as a support to pry the valve and grommet assembly from the tank.

Fig. 5 Servicing Sending Unit

Fig. 6 Removing Pressure Relief/Rollover Valve

(4) Place the valve upright on a flat surface. Push down on the grommet and peel it off the valve.

INSTALLATION

(1) Install the rubber grommet in the fuel tank by working it around the curled lip of the tank (Fig. 7).

CAUTION: Only use power steering fluid to lubricate the pressure relief/rollover valve grommet.

(2)Lightly lubricate the grommet with power steering fluid only and push the valve downward into the grommet. Twist valve until properly positioned.

(3)Install fuel tank (refer to fuel tank installation).


14 - 14 FUEL SYSTEMS

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Fig. 7 Installing Pressure Relief/Rollover Valve

ACCELERATOR PEDAL AND THROTTLE CABLE

INDEX

page

Accelerator Pedal . . . . . . . . . . . . . . . . . . . . . . . . .

14

ACCELERATOR PEDAL

CAUTION: When servicing the accelerator pedal, throttle cable or speed control cable, do not damage or kink the control cable core wire.

page

Throttle Cable . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

REMOVAL

(1)Working from the engine compartment, hold the throttle body throttle lever in the wide open position. Remove the throttle cable from the throttle body cam.

(2)From inside the vehicle, hold up the pedal and remove the cable retainer and throttle cable from the upper end of the pedal shaft (Fig. 1 and Fig. 2).

Fig. 1 Accelerator Pedal and Throttle CableÐFront

Fig. 2 Accelerator Pedal and Throttle CableÐRear

View

View


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(3) Working from the engine compartment, remove nuts from accelerator pedal assembly studs (Fig. 1). Remove assembly from vehicle.

INSTALLATION

(1)Position accelerator pedal assembly on dash

panel. Install retaining nuts. Tighten retaining nuts to 12 NIm (105 in. lbs.) torque.

(2)From inside the vehicle, hold up the pedal and install the throttle cable and cable retainer in the upper end of the pedal shaft.

(3)From the engine compartment, hold the throttle body lever in the wide open position and install the throttle cable.

THROTTLE CABLE

REMOVAL

(1)Working from the engine compartment, hold throttle lever in the wide open position and remove the throttle cable from the throttle body cam (Fig. 3, 4, 5, 6 and 7).

(2)From inside the vehicle, hold the throttle pedal up and remove the cable retainer and cable from upper end of pedal shaft (Fig. 1 and Fig. 2).

Fig. 3 Throttle Cable Attachment to Throttle BodyÐTBI Engine

FUEL SYSTEMS 14 - 15

(3)Remove retainer clip from throttle cable and grommet at the dash panel (Fig. 2).

(4)From the engine compartment, pull the throttle cable out of the dash panel grommet. The grommet should remain in the dash panel.

(5)Remove the throttle cable from the throttle bracket by carefully compressing both retaining tabs simultaneously. Gently pull throttle cable from throttle bracket.

INSTALLATION

(1) From the engine compartment, push the housing end fitting into the dash panel grommet.

Fig. 5 Throttle Cable Attachment to Throttle BodyÐTurbo III Engine

Fig. 4 Throttle Cable Attachment to Throttle

Fig. 6 Throttle Cable Attachment to Throttle

BodyÐTurbo I Engine

BodyÐ3.0L Engine


14 - 16 FUEL SYSTEMS

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(2)Install cable housing (throttle body end) into the cable mounting bracket on the engine.

(3)From inside the vehicle, hold up pedal and feed throttle cable core wire through hole in upper end of the pedal shaft. Install cable retainer (Fig. 2).

(4)Install cable retainer clip (Fig. 2).

(5)From the engine compartment, rotate the throttle lever to the wide open position and install throttle cable.

Fig. 7 Throttle Cable Attachment to Throttle

BodyÐ3.3L and 3.8L Engines

2.2L/2.5L SINGLE POINT FUEL INJECTIONÐSYSTEM OPERATION

INDEX

page

page

Air Conditioning (A/C) Clutch RelayÐEngine

Fuel InjectorÐEngine Controller Output . . . .

. . . . 23

Controller Output . . . . . . . . . . . . . . . . . . . .

. . .

21

Fuel Pressure Regulator . . . . . . . . . . . . . . . . .

. . . 26

Air Conditioning Switch SenseÐEngine

General Information . . . . . . . . . . . . . . . . . . . .

. . . 16

Controller Input . . . . . . . . . . . . . . . . . . . . .

. .

18

Ignition CoilÐEngine Controller Output . . . . . .

. . . 24

Alternator FieldÐEngine Controller Output . . . .

. .

21

Manifold Absolute Pressure (MAP) SensorÐ

Auto Shutdown (ASD) Relay and Fuel Pump

Engine Controller Input . . . . . . . . . . . . . . . .

. . . 19

RelayÐEngine Controller Output . . . . . . . . . .

. .

21

Modes of Operation . . . . . . . . . . . . . . . . . . . .

. . . 24

Automatic Idle Speed (AIS) MotorÐEngine

22

Oxygen Sensor (O2 Sensor)ÐEngine

19

Controller Output . . . . . . . . . . . . . . . . . . . . . .

. .

Controller Input . . . . . . . . . . . . . . . . . . . . . .

Battery VoltageÐEngine Controller Input . . . . . .

. .

18

Part Throttle Unlock SolenoidÐEngine

Brake SwitchÐEngine Controller Input . . . . . . .

. .

18

Controller Output . . . . . . . . . . . . . . . . . . . . .

. . . 24

Canister Purge SolenoidÐEngine Controller

Radiator Fan RelayÐEngine Controller Output

. . . 24

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. .

22

Speed Control SolenoidsÐEngine Controller

CCD Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. .

17

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . 24

Check Engine LampÐEngine Controller Output

. .

22

Speed ControlÐEngine Controller Input . . . . .

. . . 20

Coolant Temperature SensorÐEngine

TachometerÐEngine Controller Output . . . . . .

. . . 24

Controller Input . . . . . . . . . . . . . . . . . . . . . . .

. .

18

Throttle Body . . . . . . . . . . . . . . . . . . . . . . . . .

. . . 26

Diagnostic ConnectorÐEngine Controller Output

. .

23

Throttle Position Sensor (TPS)ÐEngine

Distributor (Hall Effect) Pick-UpÐEngine

Controller Input . . . . . . . . . . . . . . . . . . . . . .

. . . 20

Controller Input . . . . . . . . . . . . . . . . . . . . . . .

. .

19

Transmission Park/Neutral SwitchÐEngine

Electronic EGR TransducerÐEngine

Controller Input . . . . . . . . . . . . . . . . . . . . . .

. . . 20

Controller Output . . . . . . . . . . . . . . . . . . . . . .

. .

23

Vehicle Distance (Speed) SensorÐEngine

Engine Controller . . . . . . . . . . . . . . . . . . . . . . .

. .

17

Controller Input . . . . . . . . . . . . . . . . . . . . . .

. . . 21

GENERAL INFORMATION

trolled by the Single Board Engine Controller II

The computer regulated, Electronic Fuel Injection

(SBEC II), referred to in this manual as the en-

System (Fig. 1) provides a precise air/fuel ratio for all

gine controller.

driving conditions. The fuel injection system is con-