4-38
Chapter 4
Fuel and exhaust systems
body
Air intake
plenum side
20.12 Be sure to install the throttle body gasket with
the projection in the position shown - if gasket
installation is Incorrect, it can affect idle quality and
cause other problems
20 Throttle body - removal and installation
2.4L engine
Refer to illustrafions 20.2 and 20.12
1
Disconnect the negative cable from the battery.
2 Loosen the hose clamp and detach the air intake hose from the air
intake pipe
(see illustration).
3 Detach the breather hose from the air intake pipe.
4 Unplug the wiring harness connector(s).
5 Remove the air intake pipe mounting bolts and remove the air intake
pipe.
6 Remove the air hose.
7 Disconnect the accelerator cable (see Section 8).
8 Disconnect the TV (kickdown) cable (see Chapter 7, Part B).
9 Place some absorbent shop towels under the connections for the
coolant hoses, then
detach
both hoses. Some coolant will be lost.
10 Detach the vacuum hose(s).
11 Remove the four throttle body mounting bolts, the throttle body and
the gasket. Use ascraper to remove all traces of old gasket material from
the throttle body and plenum mating surfaces. Wipe the surfaces with a
rag soaked in lacquer thinner or acetone.
12 Installation is the reverse of removal. Be sure to install the gasket cor-
rectly
(see illustration).
Tighten the throttle body mounting bolts to the
torque listed in this Chapter’s Specifications. Connect the negative battery
cable and adjust the accelerator cable when you‘re through (see Sec-
tion 8). Add coolant to replace the coolant lost when you disconnected the
coolant hoses from the throttle body.
3.OL engine
Refer to illustration 20.14
13 Disconnectthe negative cable from the battery. Disconnectthe accel-
erator cable (see Section 8).
14 Detach the vacuum hose(s)
(see illustration).
15 Loosen the hose clamp and detach the air intake hose.
16 Unplug the Throttle Position Sensor (TPS) electrical connector.
17 Unplug the Idle Speed Control ([SC) servo electrical connector.
18 Place some absorbent shop towels under the connections for the
coolant hoses, then detach both hoses. Some coolant will be lost.
19 Remove the throttle body mounting bolts, the throttle body and the
gasket. Using a scraper, remove all traces of old gasket material from the
throttle body and air intake plenum mating surfaces. Clean the surfaces:
with a rag soaked in lacquer thinner or acetone.
20 Installation is the reverse of removal. Be sure to tighten the throttle
body mounting bolts to the torque listed in this Chapter’s Specifications.
Adjust the accelerator cable when you’re through (see Section 8), and
add
coolant to replace the coolant lost when you disconnected the coolant
hoses from the throttle body. Connect the negative battery cable.
20.14 An exploded view of the throttle body assembly
and related components (3.OL engine)
1 Accelerator cab/e
2 Vacuum hose(s) (California models have extra hoses)
3 Air intake hose
4 Throttle Position Sensor (TPS) electrical connector
5 Idle Speed Control (EC) electrical connector
6 Coolant hose
7 Throttle body
8 Gasket
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