Dodge D150 1990 Service Manual page 396

• SPEED CONTROL SYSTEM BH - 3
WARNING: T H E USE O F "SPEED CONTROL*
IS NOT RECOMMENDED WHEN DRIVING
CONDITIONS DO NOT PERMIT
MAINTAINING A CONSTANT SPEED, SUCH
AS HEAVY TRAFFIC OR ON ROADS THAT
ARE WINDING, ICY, SNOW COVERED OR SLIPPERY.
SET BRAKES, PLACE
TRANSMISSION IN
NEUTRAL OR PARK.
START ENGINE.
R E L E A S E B R A K E S A N D
A C C E L E R A T E V E H I C L E
T O D E S I R E D S P E E D
M O V E S L I D E S W I T C H
T O " O N " P O S I T I O N .
SPEED CONTROL ENGAGES
WITHOUT ACTUATING THE
-SET- BUTTON
P U S H A N D
R E L E A S E " S E T " B U T T O N
FAULTY E L E C T R I C A L C I R C U I T '
D E F E C T I V E S E R V O
R E M O V E F O O T F R O M
A C C E L E R A T O R . S P E E D
S H O U L D B E C O N T R O L L E D
N O
SPEED
C O N T R O L
WHEN SET BUTTON IS
PRESSED AND RELEASED
HUNTING SURGE
OR SPEED
VARIATIONS AT
LOW SPEEDS
F U S E B L O W N
L O C K - U P
T O R Q U E C O N V E R T E R
R O U G H N E S S
V A C U U M L E A K
A M P L I C A T I O N
O F E N G I N E
S U R G E
S P E E D C O N T R O L
THROTTLE C A B L E
D I S C O N N E C T E D
D E F E C T I V E S E R V O
IMPROPER S T O P L A M P
A N D S P E E D C O N T R O L
S W I T C H A D J U S T M E N T
D E F E C T I V E
S . B . E . C .
FAULTY E L E C T R I C A L
C I R C U I T *
•TESTS AND ADJUSTMENTS ARE DESCRIBED
IN APPROPRIATE SECTION OF SERVICE
MANUAL.
EXCESSIVE SAG
ON HILLS OR
IN TRAILER
TOWING
E N G I N E
P E R F O R M A N C E
V A C U U M
L E A K
E X C E S S I V E L O A D
M A Y R E Q U I R E
M A N U A L A S S I S T A N C E
O N HILLS
SPEED CONTROL
ENGAGES WHEN
ENGINE IS STARTED
SPEED SETTING AFTER
LOCK-IN, TOO HIGH OR
TOO LOW
V A C U U M L E A K
D E F E C T I V E S E R V O
D E F E C T I V E V A C U U M
R E S E R V O I R
D E F E C T I V E V A C U U M
R E S E R V O I R
( C H E C K V A L V E )
D E F E C T I V E S E R V O
D E F E C T I V E
V A C U U M R E S E R V O I R
J908H-12