TM10-3950-672-24-2
Oil Filter
A plugged filter will cause a gradual loss of oil pressure
by approximately 69 kPa [10 PSI]. The pressure will
return to normal when the filter bypass valve opens.
Oil Gauge
Check the oil gauge and sending unit to make sure they
are operating correctly by verifying the pressure with a
manual gage.
Oil Suction Tube
A loose suction tube, damaged gasket or crack in the
suction tube can cause a temporary loss of prime for the
oil pump. The engine will have low pressure or no oil
pressure at starting followed by normal oil pressure.
A steady decrease in oil pressure over a long period of
time can be an indication of worn bearings or excessive
oil pump wear.
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