Dodge D150 1990 Service Manual page 718

Rear wheel drive ram truck
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FUEL SYSTEM
14 - 35
i THERMOSTAT
SING
PART THROTTLE^A/C CLUTCH CUTOUT
UNLOCK R E L A Y S
RELAY
STARTER
RELAY
COOLANT TEMPERATURE
SENSOR 2-WAY ELECTRICAL
CONNECTOR
Fig. 18 Coolant Temperature Sensor
(29) Verify power brake a n d speed control vacuum
connectors are t i g h t (Fig. 19).
TO MANIFOLD VACUUM
SOURCE
SPEED CONTROL
VACUUM HOSE CONNECTION
RR14G226
Fig. 19 Power Brake and Speed Control Vacuum
Connections
(30) Verify t h a t a l l i g n i t i o n cables are i n correct or-
der and seated i n t o place.
(31) Verify t h a t a l l electrical connectors are fully
inserted i n t o relays (Fig. 20) a n d t h a t battery con-
nections are clean a n d t i g h t .
(32) Check t w o w a y Distance Sensor Electrical
Connector (Fig. 21).
(33) O n automatic transmission equipped vehicles,
verify t h a t t h e n e u t r a l safety switch electrical con-
nector is i n place (Fig. 22).
(34) I f vehicle is equipped w i t h a lock-up torque
convertor, check Torque Converter Lockup Solenoid
Electrical Connection (Fig. 22).
(35) I f vehicle
has overdrive
(A-500
automatic
transmission), check Overdrive
Solenoid Electrical
Connection (Fig. 23).
(36) Check Hose a n d W i r i n g Connections a t Fuel
Pump. Ensure t h a t w i r i n g connector is m a k i n g con-
tact w i t h t e r m i n a l s o n pump.
l A U T O ^ K f DOWN
|f (ASD) RELAY
RR14G225
Fig. 20 Engine Compartment Relays
NEUTRAL SAFETY
SWITCH
ELECTRICAL
CONNECTION
DISTANCE SENSOR
ELECTRICAL CONNECTION
Fig. 21 Distance Sensor
NEUTRAL SAFETY
SWITCH ELECTRICAL
CONNECTION
J9014-172
LOCK UP SOLENOID
_
.
ELECTRICAL CONNECTION I >
RR14G214
Fig. 22 Transmission Electrical Connections

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