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. Before Leaving on a Long Trip
    To prepare your vehicle for a long trip, consider having it serviced by your dealer/retailer before departing. Things to check on your own include: - Windshield Washer Fluid: Reservoir full? Windows clean — inside and outside? - Wiper Blades: In good shape? - Fuel, Engine Oil, Other Fluids: ...

    Chevrolet Cobalt Owners Manual

    Chevrolet Cobalt Service Manual


    Copyright © 2026 www.cheviguide.com - Chevrolet Auto Manuals - 0.5335