Installation - 3.5L; Throttle Body Description; Operation; Removal - 2.7L - Chrysler 300M Service Manual

LH
SHORT RUNNER VALVE (Continued)

INSTALLATION - 3.5L

(1) Install 3 bolts and tighten to 6.7 N·m ( 60 in.
lbs.).
(2) Install link.
(3) Install electrical connector.
(4) Install the negative battery cable.
THROTTLE BODY
DESCRIPTION
The throttle body is located on the intake manifold
(Fig. 25) or (Fig. 26). Fuel does not enter the intake
manifold through the throttle body. Fuel is sprayed
into the manifold by the fuel injectors.
Fig. 25 Throttle Body 2.7L
1 - TPS SENSOR
2 - THROTTLE BODY
3 - PCV VALVE
4 - EGR TUBE

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.
Fig. 26 Throttle Body 3.2/3.5L
1 - TPS
2 - IAC
REMOVAL

REMOVAL - 2.7L

(1) Disconnect negative cable from battery
(2) Disconnect air plenum from throttle body.
(3) Hold throttle lever in wide open position.
Remove throttle cable and speed control cables from
throttle arm.
(4) Remove throttle cable bracket.
(5) Disconnect electrical connectors from throttle
body.
(6) Remove the throttle body support bracket from
the bottom of the throttle body.
(7) Remove 3 throttle body bolts.
(8) Remove throttle body.
(9) Clean mating surfaces.

REMOVAL - 3.5L

(1) Disconnect negative cable from battery
(2) Remove wiper arms.
(3) Remove cowl screen.
(4) Remove cowl plenum.
(5) Disconnect air plenum from throttle body.
(6) Remove throttle cable bracket.
(7) Disconnect electrical connectors.
(8) Disconnect top vacuum hose.
(9) Remove the throttle body support bracket from
the bottom of the throttle body.
(10) Remove 3 throttle body bolts.
(11) Hold throttle lever in wide open position.
Remove throttle cable and speed control cables from
throttle arm.
(12) Clean mating surfaces.
FUEL INJECTION 14 - 33