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The radiator normally remains completely full, so there is
no need to remove the pressure cap except when check-
ing coolant freeze point or when replacing coolant. Your
service attendant should be advised of this. When addi-
tional coolant is needed to maintain the proper level, it
should be added to the overflow bottle. Do not overfill.
Points To Remember
A. Do not overfill the reserve tank (overflow bottle).
B. Check coolant freeze point in the radiator and in the
reserve tank. If antifreeze needs to be added, contents of
reserve tank also must be protected against freezing.
C. If frequent coolant additions are required, or if the
level in the reserve tank does not drop when the engine
cools, the cooling system should be pressure tested for
leaks.
D. Maintain a minimum coolant concentration of 50%
ethylene glycol.
E. Make sure that the radiator and reserve tank overflow
hoses are not kinked or obstructed.
F. Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean also.
G. The thermostat should not be changed for summer or
winter operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance.
Emission Related Components
Fuel System Hoses And Vapor/Vacuum Harnesses
When the vehicle is serviced for scheduled maintenance,
inspect surface of hoses and nylon tubing for evidence of
heat and mechanical damage. Hard and brittle rubber,
cracking, checking, tears, cuts, abrasions, and excessive
swelling suggest deterioration of the rubber. Particular
attention should be given to examining hose surfaces
nearest to high heat sources, such as the exhaust mani-
fold.
MAINTAINING YOUR VEHICLE 241
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