Operation CHARM: Car repair manuals for everyone.

Troubleshooting


^ External oil leaks. Tighten bolts and/or replace gaskets and seals as necessary.
^ Improper reading of dipstick. Check oil with vehicle on a level surface and allow adequate drain-down time.
^ Continuous high speed driving and/or severe usage such as trailer hauling, will decrease oil mileage.
^ PCV valve malfunctioning.
^ Valve guides and/or valve stem seals worn or omitted. Ream guides and install oversize service valves and/or new valve stem seals.
^ Improper oil viscosity. Use recommended S.A.E. viscosity for prevailing temperatures.
^ Piston rings broken, worn, or not seated. Allow adequate time for rings to seat. Replace broken or worn rings as necessary.
^ Piston improperly installed or misfitted.