hi all! not so much worried but just wondering if anyone else is experiencing this problem.my brother was following me the other day and noticed when i punched the gas that a puff of black smoke came out the tailpipes.the car does hesitate sometimes when i first start in the morning.have an apointment with the dealer tomorrow.would apreciate any input. thanks

Carbon deposits probably ... being cleaned out by driving. Try revving the engine to high rpm's in neutral for a brief while and see if the hesitation goes away.

If not, time for a BG44K session, followed by a full injector rail flush if that does not cure it.

Does your oil level and pressure appear okay otherwise?

Z

yeah oil pressure is fine and oil level also.