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. Engine Oil Life System
When to Change Engine Oil
This vehicle has the Engine Oil Life System, a computer
system that indicates when to change the engine oil
and filter. This is based on engine revolutions and
engine temperature, and not on mileage. Based on
driving conditions, the mileage at which an oil change
is i ...
Chevrolet Cobalt Owners Manual
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Chevrolet Cobalt Service Manual
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- Cooling System
- Driveline
- Electrical
- Electronic Stability Controls
- Engine Service
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