PONTIAC FIREBIRD ENGINE POOR MILEAGE

Engine Performance Problem 1993 Pontiac Firebird 3.4l 6 Cyl Two Wheel Drive Manual I Have Bad Gas Milage (12mpg) And A Rough Idle. My...

Car Listed Above 3800, Just Replaced Heads On Motor And Car Seems To Be Running A Little Rough. Blamed It On 4-month-old Bad Gas, Filled...

On My 90 Firbird 3.1 V6 It Idles Rough After Warm Up But Drives In The Higher Rpms Fine Has A Little Surging While Driving. But Bad Gas...