One problem related to engine belts and pulleys has been reported for the 1999 Chevrolet Malibu. The most recently reported issues are listed below.
Air controls switch back & forth from fresh to recirculate. Car has refused to start twice & antitheft system activated. Intake manifold leak upper and lower. I had the gasket replaced and gm canada paid for the labor and I paid for the parts, approx $180 canadian. I believe there was 78000 km (48,000 miles) on the car at the time. Seatbelts are slow to retract. Clunking noise in front end, they can't identify or fix. Recall on rotors caused pads to fail.