Engine Lubrication; Oil Pressure Switch Test; Oil Pressure Test - Honda 2004 Odyssey Service Manual

Engine Lubrication

Oil Pressure Switch Test

1. Remove the YEL/RED wire (A) from the engine oil
pressure switch (B).
B
2. Check for continuity between the positive terminal
(C) and the engine (ground). There should be
continuity with the engine stopped. There should
be no continuity with the engine running.
3. If the switch fails to operate, check the engine oil
level. If the engine oil level is OK, check the engine
oil pressure.
8-4 8-4
C
A

Oil Pressure Test

If the oil pressure warning light stays on with the
engine running, check the engine oil level. If the oil
level is correct:
1. Remove the engine oil pressure switch and install
an oil pressure gauge (A).
2. Start the engine. Shut it off immediately if the
gauge registers no oil pressure. Repair the problem
before continuing.
3. Allow the engine to reach operating temperature
(fan comes on at least twice). The pressure should
be:
Engine Oil Temperature 176°F (80°C)
Engine Oil Pressure
At Idle: 70 kPa (0.7 kgf/cm , 10 psi)
minimum
At 3,000 rpm: 490 kPa (5.0 kgf/cm , 71 psi)
minimum
4. If oil pressure is NOT within specifications, inspect
these items:
• Check the oil screen for clogging.
• Inspect the oil pump (see page 8-9).
A
2
2