MAKES A "POP" KNOCKING SOUND WHEN ACCELERATING, ONLY FROM FIRST GEAR, NOT FROM 2ND OR 3RD.
1993 Subaru Legacy
March, 28, 2012 AT 4:11 AM
Basically that's it. When I accelerate from 1st gear, with the gas pedal pressed more then half way down, the car makes a load knock or "pop" sound, for split second, then takes off. It seems to sputter, then be fine. Only happens with first gear. Wondering if its the injectors, like a misfire, or if it's something totally different.