NHTSA Complaint #10945579 — 2012 GMC TERRAIN

ON THE 2.4L ECOTEC ENGINE, THE PCV ORIFICE IN THE INTAKE MANIFOLD BECOMES CLOGGED WHICH CAUSES OIL TO BE PULLED INTO THE ENGINE COMBUSTION CHAMBER AND BURNED. THIS CAUSES AN EXCESS BUILD UP OF CARBON INSIDE THE ENGINE AND ON THE SPARK PLUGS WHICH IN TURN CAUSES THE VEHICLE TO IDLE ROUGHLY AND STALL OUT WHILE SITTING IDLE, SUCH AS AT A STOP LIGHT. GM HAS ISSUED A SPECIAL COVERAGE SERVICE BULLETIN (#: 14882) BUT ONLY FOR SPECIFIC VIN'S. IT HAS BECOME KNOWN THAT THERE ARE MANY OTHER VEHICLES THAT FALL UNDER THE YEAR GROUPS STATED BY GM IN THEIR SERVICE BULLETIN, EVEN IF IT'S A VIN THAT THEY DEEM IS SAFE FROM THE PROBLEM, BUT THEY REFUSE TO RECALL THE VEHICLES EVEN IF THEY ARE AFFECTED BY THE KNOWN PROBLEM. THIS IS A SAFETY ISSUE THAT CAUSES THE VEHICLE TO DIE WHILE TRYING TO LEAVE FROM A STATIONARY POSITION ONCE THE ENGINE HAS WARMED UP, FOR EXAMPLE PASSING THROUGH AN INTERSECTION AFTER A RED LIGHT. *TR