Throttle Body - Chrysler PT Cruiser Service & Repair Manual

14 - 44 FUEL INJECTION

THROTTLE BODY

DESCRIPTION
The throttle body mounts to the intake manifold.
The throttle position sensor and idle air control
motor attach to the throttle body (Fig. 47) .
Fig. 47 Throttle Body—2.4L Engines
1 - IAC
2 - PCM
3 - TPS
OPERATION
Filtered air from the air cleaner enters the intake
manifold through the throttle body. The throttle body
contains an air control passage controlled by an Idle
Air Control (IAC) motor. The air control passage is
used to supply air for idle conditions. A throttle valve
(plate) is used to supply air for above idle conditions.
Certain sensors are attached to the throttle body.
The accelerator pedal cable, speed control cable and
transmission control cable (when equipped) are con-
nected to the throttle body linkage arm.
A (factory adjusted) set screw is used to mechani-
cally limit the position of the throttle body throttle
plate. Never attempt to adjust the engine idle
speed using this screw. All idle speed functions are
controlled by the PCM.
REMOVAL
REMOVAL - 2.0, 2.4L
(1) Remove the air cleaner lid, disconnect the inlet
air temperature sensor and makeup air hose.
(2) Remove the negative battery cable.
(3) Remove the engine cover or throttle control
shield if equipped.
(4) Remove throttle cable from the throttle body
lever (Fig. 48)and (Fig. 49).
Fig. 48 Throttle Cable Attachment to Throttle Body
Fig. 49 Disconnecting Throttle Cable
(5) Lift the retaining tabs on the cable and slide
cable out of bracket.
(6) If equipped with speed control, remove speed
control cable from throttle lever by sliding clasp out
hole used for throttle cable.
(7) Remove EVAP purge hose from nipple on throt-
tle body.
(8) Remove the electrical connectors from the
throttle position sensor and idle air control motor.
(9) Remove 2 screws holding cable mounting
bracket and support bracket.
PT