L91 Oil Leak at Front of Engine - May be Caused by Oil Pump Gasket (Replace Original Oil Pump Gasket with Metal Reinforced Gasket)
| Subject: | L91 Oil Leak At Front of Engine - May Be Caused by Oil Pump Gasket (Replace Original Oil Pump Gasket with Metal Reinforced Gasket) |
| Models: | 2004-2007 Chevrolet Aveo |
| 2005-2007 Pontiac Wave (Canada Only) |
| with 1.6L I4 Engine (VIN 6 -- RPO L91) |
| Built Prior to VIN Breakpoint 7B797296 |
Condition
Some customers may comment on an engine oil leak at the front of the engine. The oil pump-to-engine block gasket may leak near the top of the oil pump, resulting in an oil leak that spreads oil on the front of the engine and the oil pump. Technicians may misdiagnose the source of the leak and incorrectly replace the oil pump along with the oil pump gasket it they are unable to determine the exact location of the oil leak.
Cause
The oil pump gasket may develop a crack that is not able to withstand high oil pressure.
Correction
Important: The original SI information specified the use of RTV when replacing the gasket. RTV is NOT to be used with the new metal insert gasket.
Replace the original oil pump gasket with the new improved metal reinforced gasket, P/N 90573301. Refer to Repair Instructions-On Vehicle-Oil Pump Replacement in SI.
Important:
• DO NOT replace the oil pump to remedy oil leakage - only the gasket needs replacement. • DO NOT use the old style fiber gasket. • DO NOT use RTV with the new metal reinforced-style gasket.
Parts Information
Part Number | Description | Qty |
|---|---|---|
90573301 | Gasket, Oil Pump -- (Metal Reinforced) | 1 |
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J1020 | Pump, Engine Oil - Replace | Use Published Labor Operation Time |
