Chevrolet Cobalt Service & Repair Manual: Exhaust Manifold, Replace

Removal

1. Remove exhaust manifold heat shield.
2. Remove oxygen sensor.
3. Raise and support vehicle.
4. Remove manifold to exhaust flex decoupler mounting bolts.
5. Pull down and back on exhaust pipe in order to disconnect pipe from exhaust manifold.
6. Lower vehicle.
7. Remove exhaust manifold to cylinder head mounting nuts.
8. Remove exhaust manifold, clean sealing surfaces.
9. Reverse procedure to install. Torque exhaust manifold to cylinder head mounting nuts to 106 inch lbs., in sequence, Fig. 1.

Fig. 1 Exhaust manifold tightening sequence

    Exhaust Manifold Gasket R&R
    1. Remove the secondary air injection bolts (2) and nuts (1), Fig. 1. 2. Remove the secondary air injection studs (3 and 4), Fig. 2 ...

    Front Cover, Replace
    Removal 1. Raise and support vehicle. 2. Remove front fender liner. 3. Turn drive belt tensioner clockwise. ...

    See also:

    Chevrolet Cobalt Owners Manual. Cooling System
    The Cooling System allows the engine to maintain the correct working temperature. 2.2L L4 Engine shown, 2.0L L4 Engine similar A. Electric Engine Cooling Fan B. Coolant Surge Tank and Pressure Cap WARNING: An electric engine cooling fan under the hood can start up even when the engine is no ...

    Chevrolet Cobalt Owners Manual

    Chevrolet Cobalt Service Manual


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