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pekingnesepuppy

06-25-2012 06:47 AM

engine idles roughs and stalls

my 1995 c 220 always ran like a german sewing machine. idled at 500 rpms.
now the rpms flutters, rough idle and stalls.
i replaced the mass air flow sensor after hooking up a diagnostic computer.
no luck.
engine ha s349,000 miles.

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