BUICK ENCLAVE ENGINE SYMPTOM

Just Replaced The Starter Was Running Fine Until The Starter Went Bad, Now It Just Cranks And Won't Start. I Have 2 Codes P0018 And...

Every Time I Try To Crank Up My Car It Will Make A Sound But Won't Turn Over. What Do I Need To Do?

Changed My Oil Recently And A Couple Days Later When I Pulled The Cover Off To Clean Out My Intake Valve And Found This On My Cap.

Dtc Codes Refer To Egr, Pcv Intake Leaks. Cannot Find Egr Valve Or Typical Pcv Valves. Car Now Backfires With Black Exhaust And Stalls...