Chevrolet Cobalt Service & Repair Manual: Compression Pressure

When inspecting cylinder compression, the engine should be at room temperature, the throttle should be open, the spark plugs removed and the battery at full charge. The lowest reading cylinder should not be less than 70% of the highest and no cylinder reading should be less than 100 psi. Turn ignition key until engine cranks through four compression cycles per cylinder. Normal compression builds up quickly and evenly to specified compression on each cylinder.
    Camshaft R&R
    Removal 1. Loosen vent hose clamp at air cleaner resonator, air cleaner intake duct clamp at air cleaner outlet resonator. 2. Loosen air ...

    Connecting Rod R&R
    1. Rotate the crankshaft to a position where the connecting rod bolts are the most accessible, Fig. 1. 2. Mark the connecting rod an ...

    See also:

    Chevrolet Cobalt Owners Manual. Sensing System for Passenger Airbag
    The passenger sensing system, if equipped, will turn off the right front passenger frontal airbag under certain conditions. The driver airbags and roof-rail airbags are not affected by this. If the vehicle has a passenger sensing system, the passenger airbag status indicator will be visible on ...

    Chevrolet Cobalt Owners Manual

    Chevrolet Cobalt Service Manual


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