2007 GMC ENVOY DENALI Engine Problems

MISFIRE IN CYLINDER CAR CUT COMPLETELY OFF IN TRAFFIC IT ONLY HAPPENS WHEN YOU ACCELERATE LIKE ENTERING THE RAMP TO THE HIGHWAY AS YOU ACCELERATE ONTO THE HIGHWAY CAR WILL MISFIRE CUTTING OFF VERY DANGEROUS SITUATION.

OIL PRESSURE SENSOR. I COULD DRIVE A VERY SHORT DISTANCE BEFORE THE OIL PRESSURE WOULD FALL DOWN TO ZERO. THE OIL PRESSURE WARNING LIGHT WOULD COME ON AND THEN STOP ENGINE.

TL* THE CONTACT OWNS A 2007 GMC ENVOY DENALI. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH THE VEHICLE SUDDENLY STALLED. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE FAILURE WAS UNABLE TO BE DIAGNOSED. THE MANUFACTURE WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 89,000.

EXHAUST MANIFOLD BOLTS BROKEN, CAUSING UNCATALYZED EXHAUST EMISSIONS UNDER HOOD AND RESULTING IN INCREASED CO (CARBON MONOXIDE) LEVELS ENTERING THE CABIN THROUGH THE HVAC SYSTEM DURING ENGINE OPERATION AT SLOW SPEEDS OR WHILE PARKED. *TR