Chevrolet Cobalt Service & Repair Manual: Compression Pressure
Chevrolet Cobalt Service & Repair Manual / Engine Service / 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. Electric Power Management
This vehicle has Electric Power Management (EPM),
an advanced control system. It estimates the battery's
temperature and state of charge and then adjusts the
voltage for best performance and extended life of the
battery.
When the battery's state of charge is low, the voltage
is raised slightly ...
Chevrolet Cobalt Owners Manual
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Chevrolet Cobalt Service Manual
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