Troubleshooting - Toyota 1C Repair Manual

YI
LUBRICATION SYSTEM - Troubleshooting
T ROUBLESHOOTING
Problem
Possible cause Remedy
O.lleabge
Cylinder
head, cylinder block or 011 pump Repair as necessary
body damaged or cracked
Oil seal faulty Replace
oil
seal
Gasket
faulty
Replace gasket
Low oa pressure
Oil leakage Repair as necessary
Relief
valve
faulty
Repair relief valve
Oil pump faulty Repair oil pump
Engine
oil
poor quality
Replace
engine
oil
Crankshaft bearing faulty
Replace bearing
Connecting rod bearing faulty Replace bearing
Oil filter clogged Replace oil
filter
High
oil
pressure
Reief
valve faulty
Repair relief valve
Page
EM-62 or
EM-83
LU-5
LU- 5
LU-4
EM-74
EM-72
LU-4
LU-8