1998 Grand Marquis stumbling and falling
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1998 Grand Marquis stumbling and falling
Got a 1998 grand marquis ls 4.6, sometimes it runs like a top with no issues, sometimes it likes to stumble and not accelerate coming out of stop signs and intersections, the issue clears up a little when I put my foot to the floor, already replaced the IAC valve, new coils, what else could it be?
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