if there is black smoke it is turbo not working check turbos v and t valve for carbon or vacume pressure to the turbo if ok check airmass meter on airfilter box and check computer box for water damage and that is on a 2,8 engine the 2,5 engine the same but it has a injector pump at the back of the motor check pump timing and then if it is white smoke check injectors and pressure+boost pipes on both engins on the 2.8 the co box is behind the gearlever and the 2,5 belowe the battry+27837468486
pj
May 2010