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Fuel,
Emission and Exhaust System
D:06:03
a. A plugged orifice in the cold start valve air
tube or a plugged hose that connects the
oil filler cap to the air tube would cause
excessive pressure build up within the
crankcase
resulting in possible oil seal
and/or gasket damage
b. An air leak in the engine crankcase will
cause a lean running condition since the
crankcase is connected to the intake
manifold.
Possible air leaks could be the oil
dip stick not installed completely, oil filler
cap not sealing properly, or leaking engine
gaskets.
The vapour cannister is not serviceable and
must be replaced as a complete assembly. The
cannister is located inside the left rear body
section and is attached to the cover plate
which is fastened to the body with (4) bolts.
(Fig.
421
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