Removal; Installation; Description; Operation - Dodge dakota 2002 Service Manual

DR
SWITCH (Continued)

REMOVAL

Depending on engine control computer (JTEC
having a 3–plug connector or 5.7L V-8 NGC hav-
ing a 4–plug connector), 2 types of switches are
used. Both types of switches are internally and
externally different. The switches used with the
NGC system have attached pigtail leads (Fig.
11). The switch used with the JTEC system does
not have an attached pigtail lead.
(1) Remove switch mounting screw (Fig. 10). or
(Fig. 11)
(2) Pull switch from steering wheel.
(3) Unplug electrical connector from switch (Fig.
10), or, switch pigtail wire harness from steering
wheel wire harness (Fig. 11) and remove switch.
Fig. 10 SPEED CONTROL SWITCHES (EXCEPT 5.7L
V-8 ENGINE)
1 - ELECTRICAL CONNECTORS
2 - MOUNTING SCREWS
3 - RIGHT SWITCH
4 - LEFT SWITCH

INSTALLATION

(1) Plug electrical connector into switch (Fig. 10),
or connect pigtail wire harness to steering wheel wire
harness (Fig. 11). Be sure wires are not pinched.
(2) Position switch to steering wheel.
(3) Install switch mounting screw and tighten.
Refer to torque specifications.
Fig. 11 SPEED CONTROL SWITCHES (WITH 5.7L V-8
1 - MOUNTING SCREWS
2 - RIGHT SWITCH
3 - LEFT SWITCH
4 - PIGTAIL LEADS
VACUUM RESERVOIR

DESCRIPTION

The vacuum reservoir is a plastic storage tank con-
nected to an engine vacuum source by vacuum lines.
A vacuum reservoir is not used with diesel engines or
the 5.7L gas powered engine.

OPERATION

The vacuum reservoir is used to supply the vac-
uum needed to maintain proper speed control opera-
tion when engine vacuum drops, such as in climbing
a grade while driving. A one-way check valve is used
in the vacuum line between the reservoir and the
vacuum source. This check valve is used to trap
engine vacuum in the reservoir. On certain vehicle
applications, this reservoir is shared with the heat-
ing/air-conditioning system. The vacuum reservoir
cannot be repaired and must be replaced if faulty.
DIAGNOSIS AND TESTING - VACUUM
RESERVOIR
(1) Disconnect vacuum hose at speed control servo
and install a vacuum gauge into the disconnected
hose.
SPEED CONTROL
ENGINE)
8P - 9