Buick LeSabre 1965 Service Manual page 868

RESULT:
ENGINE WILL
RACE WHEN
LEVER IS
DEPRESSED
AND RETURN
TO IDLE WHEN
LEVER IS
RELEASED.
CRUISE LAMP
WILL NOT
COME O N
DISCONNECT
BEAD CHAIN
FROM
THROTTLE
LINKAGE
IF ENGINE
STILL RUNS
FAST
ADJUST
ENGINE
IDLE
IF ENGINE
RETURNS
TO NORMAL
IDLE SPEED
CHECK FOR
INTERNAL
LEAKS IN
POWER UNIT
ALSO CHECK
AIR FILTER
CHECK BEAD
CHAIN ADJUSTMENT
CHECK FOR
VACUUM LEAKS
CHECK BRAKE
RELEASE SWITCH
ADJUSTMENT
8
8
CHECK FOR
LOOSE ELECTRICAL
CONNECTIONS
IF NONE
OF ABOVE
WITH WIRING HARNESS
CONNECTED, JUMP
HEAVY LEAD OF POWER
UNIT TO GROUND.
DEPRESS AND RELEASE
ENGAGEMENT SWITCH.
NORMAL
RESULT:
ENGINE WILL
RACE WHEN
BUTTON IS
DEPRESSED
AND RETURN
TO IDLE WHEN
BUTTON IS
RELEASED
IF N O
ACTION
WITH WIRING HARNESS
CONNECTED, CHECK TO
SEE IF BATTERY VOLTAGE
EXISTS BETWEEN RED LEAD
TO POWER UNIT AND
GROUND WHEN ENGAGE
BUTTON IS DEPRESSED
IF N O VOLTAGE _ | CHECK WIRING
IS PRESENT HARNESS CONTINUITY
IF VOLTAGE
IS PRESENT
H
CHECK CONTINUITY
OF POWER UNIT COIL
IF CAR
ENGINE
ACCELERATES
CHECK TRANSISTOR
AMPLIFIER
DISCONNECT
SPEEDOMETER
WIRING HARNESS. !
DEPRESS ENGAGE
LEVER AND RELEASE
NORMAL
RESULT:
ENGINE WILL
REMAIN AT
IDLE. CRUISE
LAMB-WILL
COME ON
CRUISE \
LAMP COMES \
O N AND L
ENGINE /
DOES NOT /
RACE /
ENGINE DOES \
NOT RETURN \
TO IDLE / "
CHECK WIRE
HARNESS
CONNECTIONS
TO SPEEDOMETER
, k l CHECK SPEEDOMETER
* 1 CONTINU TY
1 CHECK
M TRANSISTOR
AMPLIFIER
CHECK AIR
FILTER
SINE IDLES I
r
3 CRUISE k - H
\P DOES I
L
T COME O N r
I * l C
ENGINE IDLES
AND CRUISE
LAMP DOES
NOT COME O N I
I
CHECK ENGAGE
SWITCH CONTINUITV
ENGINE
RACES AND J
CRUISE LAMP f\
COMES O N 1
ENGINE RACES
AND CRUISE LAMP
DOES NOT COME O N
CHECK WIRING
HARNESS CONTINUI
CHECK RELAY
CHECK WIRING
HARNESS FOR
GROUNDED CIRCL
NORMAL
RESULT
CHECK
SPEEDOMETER
n
70
Figure 11-183—Electro-Cruise Trouble Diagnosis Test Procedure Chart
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