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Base Engine Misfire with Excessive Oil Consumption

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Base 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.
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