Service Manual Update for 2000 and 2001 L Series L 61Engine Service Manuals

The purpose of this bulletin is to update the "Engine Oil Pressure (EOP) Switch" procedures in the Engine/Emission Control section and "Oil Pressure Check" procedures in the Lubrication section of 2000 and 2001 L-Series (L61) Engine Service Manuals.

Please obtain all 2000 and 2001 L-Series (L61) Engine Service Manuals at your location and make the necessary updates as indicated below.

1. In 2000 L-Series (L61) Engine Service Manual,

•	Cross out "Engine Oil Pressure (EOP) Switch" procedure on page 329 with marker or pen.

•	Cross out page 744 with marker or pen.

•	Insert photocopy of page 2 of this bulletin between pages 328 and 329.

•	Insert photocopy of page 3 of this bulletin between pages 744 and 745.

2. In 2001 L-Series (L61) Engine Service Manual,

•	Cross out "Engine Oil pressure (EOP) Switch" procedure on page 338 with marker or pen

•	Cross out page 750 with marker or pen.

•	Insert photocopy of page 2 of this bulletin between 338 and 339.

•	Insert photocopy of page 3 of this bulletin between pages 750 and 751.

ENGINE OIL PRESSURE (EOP) SWITCH

REMOVAL

1. Ignition Off.
2. Disconnect engine oil pressure (EOP) switch harness connector.
3. Using Oil Pressure Socket J35749, remove EOP switch.

INSTALLATION

1. Apply RTV sealant (or equivalent) to the EOP switch threads.
2. Using Oil Pressure Socket J35749, install EOP switch.

Tighten
Engine Oil Pressure Switch: 10N·m (89 lb ft)

3. Connect EOP switch harness connector. Push in connector until a click is heard, then pull back to confirm a positive engagement.
4. Check oil level and fill if low.
5. Start engine and check for leaks.

OIL PRESSURE CHECK

Notice: Use only oil with American Petroleum Institute Certified for Gasoline Engines "Starburst" symbol. Failure to use the recommended oil can result in engine damage not covered by your warranty.

Important: As shown in this chart, SAE 5W-30 is best for your vehicle. However, you can use SAE 10W-30 if it's going to be - 7°C (20°F) or above. These numbers on an oil container show its viscosity, or thickness. Do not use engine oil with viscosity rating such as SAE 10W-40, SAE 20W-50 and 30W as it does not meet Saturn Requirements.

Engine Additives:

Don't add anything to your oil. Your Saturn Retailer is ready to advise if something should be added.

Important: The oil level should be 4.76 mm (3/16 in.) above or below the FULL line on the dipstick, after the engine's oil and filter have been changed. If the oil level is at or below the ADD line, check for oil leaks and oil up to the FULL line.

1. Check engine oil level.

Notice: The cylinder block oil pressure sensor and plug threaded holes in the main oil gallery are not pipe threads. Use only Oil pressure fitting J44953 with seal when checking oil pressure.




2. Using Oil Pressure Socket J35749, remove oil pressure switch.
3. Install oil pressure fitting J44953 and oil pressure gauge SA9127E (LLO shown, L61 similar).
4. Start engine and warm to normal temperature.

Important: Check for oil leakage after installing oil pressure switch.

5. Check oil pressure.

Oil Pressure at 1000

rpm: 344.75-531.60 kP (50-80 psi)

Tighten
Oil Pressure Sensor-to-Block: 35N·m (26 lb ft)