08 mdx, 75000 never maintained ;after at least an hour high speed turnpike driving, on deceleration smoke pours out exhaust for 5 or so seconds. Something cuts off and it stops. After long drive home car sitting for any length of time, especially overnight, major smoke for again about 5 or so seconds. Seems like because of the deceleration, a vacumn must be involved, either pcv or egr. Any ideas?
have the same problem?
Thursday, May 5th, 2011 AT 8:35 PM