OEM 2005 Chevrolet Cobalt Exhaust Manifold

2005 Chevrolet Cobalt Exhaust Manifold Parts Questions & Experts Answers

• Q: How to replace the exhaust manifold (L61) on 2005 Chevrolet Cobalt?

  A: The first step in replacing the Exhaust Manifold (L61) is to detach both the exhaust heat shield and the Oxygen Sensor. Extreme bending motion greater than 3 degrees applies to the exhaust flex decoupler which will lead to damage. The Exhaust Pipe disconnection from the Exhaust Manifold begins when you remove the pipe to manifold nuts followed by pulling down and back on the Exhaust Pipe. Lower your vehicle after which you should remove the Exhaust Manifold to cylinder head nuts before extracting the Exhaust Manifold itself. The installation of a new Exhaust Manifold Gasket and Exhaust Manifold to cylinder head requires cleaning all surface areas. The procedure requires new exhaust nuts which need to be installed while following a specified tightening order at 13 nm (115 inch lbs.). First raise and support the vehicle before installing a new Exhaust Manifold to flex coupler gasket and using force to position the flex coupler onto the Exhaust Manifold. Use new exhaust nuts to fasten the manifold to flex decoupler while tightening them to 50 nm (37 ft. Lbs.). First lower the vehicle before reinstalling the Oxygen Sensor and finishing by installing the Exhaust Manifold heat shield while tightening its bolts to 25 nm (18 ft. Lbs.).