Manual:HUMMER Hummer H3 Base 2010Page:10124 / 37523
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Base Engine Misfire with Excessive Oil Consumption — 2010 Hummer H3 Base, Automatic Service ManualBase Engine Misfire with Excessive Oil Consumption
| Cause |
Correction |
| Worn valves, valve guides and/or valve stem oil seals |
- Inspect the spark plugs for oil deposits.
- Repair or replace as required.
|
Worn Piston Rings
Oil consumption may or may not cause the engine to misfire. |
- Inspect the spark plugs for oil deposits.
- Inspect the cylinders for a loss of compression. Refer to Engine Compression Test .
- Perform cylinder leak down and compression testing to determine the cause.
- Repair or replace as required.
|