Noroots8 Posted October 17, 2018 Share Posted October 17, 2018 I have an 08 gu813 with an mp7. It has dpf and about 14,000 hrs. It recently started pushing alot of black smoke under acceleration and occasionally it makes a popping noise (feel)with a momentary loss of power. It runs smooth but may be slight off on power. A questionable mechanic replaced one injector but this didn’t change anything. I believe he was fishing. I dont have a boost gauge. Quote Link to comment Share on other sites More sharing options...
OldRedMack Posted October 18, 2018 Share Posted October 18, 2018 Pressure check the intake. My guess would be an intake leak or turbo vanes stuck if it's a vgt turbo, but we have all gray motors no mp. Quote Link to comment Share on other sites More sharing options...
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