2001 crown vic, just bought her used. Driving and come around a corner and car kills. Put her in park, start her up again and runs rough, only about 20 mph, then kills. Start her up again then runs great... Any ideas?
Remove the IAC from the throttle body and clean it really well of carbon with Throttle body cleaner. You might need to use a new gasket. You might want to clean the throttle body while you at it. Check www.youtube.com for some helpful videos.
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