2005 Freestar shakes during warm up
3 Answers
Sounds like it may be running too rich when it's cold. The engine needs a richer mixture when cold. Maybe the O2 or MAP sensor is not working properly.
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Guru9ZZ497 answered 3 years ago
Possible bad spark plug. Check them out. If plug is fouled possibly oil fouled means leaking piston ring on that cylinder.