Mechanics

1993 ES300 FUEL /EXHAUST SYSTEM TROUBLESHOOTING

1992 Lexus ES 300 • 6 cylinder FWD Automatic • 160 miles

Daughter's '93 Lexus ES300 has recently begun idyling rough (coughing between approx..75 and 1.2 - 5 rpm). The fuel exhaust fumes are white, emitting a lingering - but not thick - cloud from the pipe with a rich smell of gasoline.
I do not see leaking fuel lines or disconnected vacuum hoses under the hood.
Any ideas where to look for problem?

thx,
Steve
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Steveme
May 24, 2011.



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