lot of smoke from the exhaust pipe but stops after about four minutes. on 2003 Mazda Mazda6

it does that every morning, was told its the engine seat, just changed it but still te same.

by in Chesapeake, VA on July 28, 2012
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1 answer
ANSWER by , July 28, 2012
poss valve seals or valve issue. you may need head work. how many miles and what eng size. v6?