Diagnosis Of The Fuel Gage - GMC G Service Manual

8C-4 INSTRUMENT PANEL

DIAGNOSIS OF THE FUEL GAGE

GAGE RESPO NDS TO
TESTER ACCURATELY
CHECK REAR CO M PARTM ENT
CONNECTOR AND W IR ES
T O SENDER.
NOT OK
OK
REPAIR
REPLACE
W IR E S OR
SENDER
CONNECTOR.
FUEL GAGE INO PERATIVE OR INACCURATE
DISCO NNECT FUEL GAGE SENDER
W IR E IN REAR COMPARTMENT.
CO NNEC T J24538-A TESTER TO
SEND ER W IR E AND TO GROUND.
TURN IGNITION ON.
GAGE RESPONDS TO
TESTER INACCURATELY.
DISCO NNECT FRO NT BODY CONNECTOR.
C O N NECT J24538-A TE STER TO
LEAD THAT G O ES TO GAGE.
GAGE SHOULD READ BETW EEN
AND WITH 90 OHMS
1 / 4 1/2
FROM J24538-A TESTER.
READING READING
CO RREC T INCO RRECT
CHECK W IRING REM O VE GAGE.
TO SEND ER FOR CHECK FOR
LOOSE CO NNEC ­ LOOSE NUTS
TIO NS AND/OR AT GAGE
DAMAGED WIRING. TERMINALS.
REPAIR AS
NECESSARY.
NUTS
LOOSE
TIGHTEN
NUTS,
REINSTALL
AND
RETEST
GAGE
Figure 1 — Diagnosis of the Fuel Gage
GAGE DOES NOT
RESPO ND
DISCONNECT FRO NT BODY
CONNECTOR. CONNECT
J24538-A T E STE R TO LEAD
THAT G O ES TO GAGE.
GAGE
REPONDS TO
TESTER
ACCURATELY
CHECK W IR ING
BETW EEN
REAR COM ­
PARTM ENT
AND FRO NT
BODY
CONNECTOR.
REPAIR AS
NECESSARY.
NUTS
TIGHT
GAGE DOES
NOT
RESPOND
REM O VE
GAGE.
CHECK FOR
LOOSE OR
OPEN CON­
NECTIONS
AT GAGE
TERM INALS
OR INSTRU­
MENT
CLUSTER
CONNECTOR.
REPAIR
CO NNECTIO NS
AND REINSTALL
GAGE
L00113