1999 Oldsmobile LSS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 Oldsmobile LSS

1999 Oldsmobile LSS Problems

Check Engine Light Due to Ignition Related Failures

Failure of the crankshaft position sensor, ignition control module, or PCM may cause the Check Engine Light to illuminate.

Engine Runs Lean Due to Vacuum Leak in EGR Tube

The EGR tube may develop an engine vacuum leak causing the engine to run lean. The Check Engine Light may or may not illuminate.

Replace spark plugs every 100,000 miles

General Motors recommends that the spark plugs should be replaced every 100,000 miles. Our technicians highly recommend the spark plug wires be replaced at the same time.

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