Volvo C70 BROCHURE 2 Operations Instructions Page 137

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1998 C70
Evaporative control system
The car is equipped with a gas evaporative control system, which prevents gasoline fumes from being
released into the atmosphere. The system is comprised of an expansion chamber in the fuel tank, a
rollover valve on the cross member in front of the fuel tank and a charcoal canister with a built-in
vacuum valve under the left-front wheel housing. The components are interconnected by hoses which
channel fuel vapor from the gas tank to the charcoal canister, where it is stored until the engine is started
and then drawn into the engine's air intake system. If the fuel filler cap is not closed tightly or if the
engine is running when refueled, the Malfunction Indicator Lamp may indicate a fault.
Crankcase ventilation
The engine is provided with positive crankcase ventilation which prevents crankcase gases from being
released into the atmosphere. Instead, the crankcase gases are admitted to the intake manifold and
cylinders.
pg. 113 Lubrication
No. Lubrication point Lubricant
file:///K|/ownersdocs/1998/1998_C70/98c70_33.htm (2 of 5)12/30/2006 1:49:19 PM
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