Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello, my name is ***** ***** I'm here to help get your problem solved.
I agree with what your family friend has said. These engines are known for injector problems which will cause black smoke at idle and smoke under hard acceleration fits a leaking turbo seal. You can verify seal is the problem by seeing if there is oil in the intercooler piping. To verify injectors are problems you would want to make sure fuel pressure is correct during problem, if so they would need to be replaced. Injectors are a 9 hour job to replace and turbo is a 6 hour job. So unless he is willing to give you a really good deal on labor you are looking at at least $2500 worth of work. After parts are replaced I'd imagine you would be trouble free for awhile considering mileage isn't that high but that is your call. Let me know if you have more questions, thanks.