Plymouth Gran Fury 1980 Operating Instructions And Product Information page 55

Scheduled Maintenance
checked for free operation and Manifold H eat Control Valve
Solvent applied.
Apply Manifold Heat Control Valve Solvent only when man-
ifold is cool.
Automatic Choke System (Schedule B)
With the engine off, partially open the throttle and check entire
choke system for freedom of operation throughout its full travel.
Any stiffness or binding
in
the linkage must be corrected.
Check the vac uum kick and fast idle cam position settings in
accordance with the instructions outlined in the Service Manual
an d adjust as necessary.
Carburetor Air Filter - Paper Element (Schedule A & B)
Th e filter installed in your carburetor a ir cleaner should be re-
p laced at the mileage indica ted in the Maintenance Chart. Re-
place more often when the car is driven in dusty or sandy areas.
Oxygen Sensor -
If so equipped (Schedule
A)
On engines equipped with a California emission package, an
oxygen sensor is used to monitor the oxygen con tent of the
engine exhaust gases. This oxygen sen sor must be replaced at the
mileage interval specified in the maintenance chart.
Vehicles equipped with the oxygen sen sors h ave a REMINDER
light on the instrument panel to indicate when the sensor mus t be
replaced. The mileage counter for the reminder system must be
reset, and the battery which operates the indicator light replaced,
when the oxygen sensor is replaced.
Fuel Filter (Schedule B)
Fuel Filler
A plugged fuel filter can limit
the speed at which a vehicle
can be driven, an d also cause
hard starting. Under normal
operating conditions, the filter should be rep laced at
age indicated in the Maintenance Chart.
Crankcase Inlet Air Cleaner (Schedule B)
the mile
At the mileage specified on the Maintenance Ch art, the crankcase
inlet air clean er must be cleaned and lubricated.
Have th e crankcase inlet air
cleaner removed and w ashed
thoroughly in kerosene or similar
solven t. Lubricate or wet the filter
by inverting the crankcase
inlet air cleaner and fill w ith SAE
30 engine oil. Position the air
cleaner to allow excess oil to drain thoroughly through the vent
nipple located on the top of the air cleaner. More frequent ser-
vice may be necessary for vehicles operated extensively on short
run, stop and go, or exten ded engine idle service. 53