Low oil pressure Insufficient oil in crankcase
Excess oil in crankcase
Diluted or improper grade and vis-
cosity oil
Oil leak in pressure line
Check and add correct grade and
viscosity oil. Visually check engine
for leaks.
Check and remove required amount
of oil. Check for cause of excessive
oil (improper filling, bad fuel pump,
etc.).
Change oil and oil filter. Be sure to
use the correct grade and viscosity
oil.
Inspect all oil lines and tighten all
connections as necessary.
No oil pressure Defective gauge, gauge tube, or oil
line
No oil in engine
Replace gauge or gauge sender
Refill crankcase. See engine manu-
al for proper grade and viscosity.
High oil pressure Too heavy grade of oil
Dirt or obstruction in oil line
Drain oil and replace. See engine
manual for proper grade.
Drain and clear oil system.
Check for bent or flattened oil lines
and replace as necessary
Sludge in oil Infrequent oil changes
Dirty oil filter
Water in oil
Drain oil and refill with oil of proper
grade and viscosity.
Replace filter.
Drain oil and refill. See your dealer
if problem persists.
Transmission shifts hard Corroded or pinched linkage Lubricate or replace linkage as
needed.
Engines and Transmissions
11.10
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