The a/c in my '90 90q20v hasn't been working for a few months now. Today I was driving through a tunnel and hit the "Outside Temp" button and the car started making a sputtering sound that increased in speed as I accelerated and vice versa. The sound disappeared after I hit the button again. Something (else) to worry about? Jess C. Almero, Jr. Glendale, CA '90 90q20v '86 Coupe GT