Chevrolet Cobalt Service & Repair Manual: Precautions
| 1. |
After disassembling power brake unit,
soak metal components in solvent. |
| 2. |
Use only alcohol on components containing
rubber. After components have been thoroughly cleaned and rinsed
in solvent, they should be washed again in clean alcohol before
assembly. |
| 3. |
Use compressed air to blow dirt and
cleaning fluid from recesses and internal passages. |
| 4. |
Always use all components furnished
in repair kit. |
| 5. |
Use extreme caution when disassembling
power assist mechanisms. If internal spring tension is suddenly
released it could cause damage or personal injury. |
| 6. |
Brake boosters are not serviceable
and should be replaced as an assembly. |
|
Two basic types of power assist
mechanisms are used: vacuum assist diaphragm assemblies, which use engine
vacuum or in some cases vacuum pressure developed by an external vacuum
pum ...
Brakes Grab
1.
Contaminated, worn or faulty brake
linings.
2.
Drum or brake rotor out-of-round.
3.
Faulty b ...
See also:
Chevrolet Cobalt Owners Manual. Gasoline Octane
If the vehicle has the 2.2L L4 engine (VIN Code 5),
use regular unleaded gasoline with a posted octane
rating of 87 or higher. If the octane rating is less than
87, an audible knocking noise, commonly referred to
as spark knock, might be heard when driving. If this
occurs, use a gasoline rated ...
General Service
Troubleshooting