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2003 Discovery Series II Oil Pump Failures
Vehicles Affected
Discovery Series II (LT) 3A771801 – 3A808362
Situation
Oil pump failures on 2003 Discovery Series II vehicles may be the result of a
manufacturing error. Locating dowel pins may be slightly misaligned permitting
assembly of the oil pump to the engine block, but placing stress on the pump housing
which can ultimately lead to leakage or failure.
Resolution
Whenever an oil pump failure is encountered on vehicles within the above VIN range
the only effective repair currently available is replacement of the complete engine
assembly including the front cover/oil pump manufactured to the latest tolerances.
Use the following components to affect a repair:
• LBB112301 4.6 Engine assembly LEV
• LBB111461 4.6 Engine assembly NON-LEV