Acura TSX / Honda Accord CL. Manual — part 476

Fig. 3: Locating Engine Lubrication Components

SYMPTOM TROUBLESHOOTING INDEX

2004 Acura TSX

2004 ENGINES Lubrication System - TSX

Fig. 4: Engine Lubrication Symptom Troubleshooting Index

OIL PRESSURE SWITCH TEST

1. Remove the YEL/RED wire (A) from the engine oil pressure switch (B).

2004 Acura TSX

2004 ENGINES Lubrication System - TSX

Fig. 5: Removing The Wire From The Engine Oil Pressure Switch

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. If the oil pressure is OK, replace the oil pressure switch (see OIL PRESSURE SWITCH
REPLACEMENT ).

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).

2004 Acura TSX

2004 ENGINES Lubrication System - TSX

Fig. 6: Installing An Oil Pressure Gauge

2. Start the engine. Shut it off immediately if the gauge registers no oil pressure, and 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

2

, 10 psi) minimum

At 3,000 RPM: 300 kPa (3.1 kgf/cm

2

, 44 psi) minimum

4. If the oil pressure is NOT within specifications, inspect these items.

z

Check the oil screen for clogging.

z

Check the oil pump (see OIL PUMP OVERHAUL ).

2004 Acura TSX

2004 ENGINES Lubrication System - TSX