Engine Noise Problems of Oldsmobile Intrigue

The contact owns a 1999 Oldsmobile Intrigue. While driving 25 mph, the rpms would drop and all the instrument panel gauges would dim. In addition, the vehicle would occasionally stall unexpectedly. The vehicle would restart immediately, but there were no warning indicators illuminated prior to the failure. The contact noticed that the rpms would increase and the engine sounded as if it were revving. During this time, the vehicle would lunge forward. The vehicle was inspected, but the cause of the failure could not be determined. The spark plugs have been changed along with other remedies, but the failure still persists. The manufacturer has not been notified. The current mileage was approximately 135,000 and failure mileage was approximately 133,000.

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