Mechanics

MAKES A "POP" KNOCKING SOUND WHEN ACCELERATING, ONLY FROM FIRST GEAR, NOT FROM 2ND OR 3RD.

1993 Subaru Legacy • 220,000 miles

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.
Avatar
Dante1358
March 28, 2012.



Intermittent misfires are mostly due to loose connections and usually are spark plug related.

KHLow2008
Mar 28, 2012.