Chevrolet Cobalt Service & Repair Manual: Exhaust Muffler, Replace
Warning: Exhaust system operates
at high temperatures. Allow system to cool before servicing or burns or
personal injury may result. |
Caution: Do not use oil or
grease-based lubricants on isolators. These lubricants may cause deterioration
of rubber. This can lead to separation of isolator from exhaust hanger bracket
during vehicle operation. |
If equipped, do not excessively
bend, twist or allow exhaust to hang from flexible pipe or damage to muffler
and tailpipe may occur. |
1. |
If equipped, remove muffler splash
shield. |
2. |
Support muffler and tailpipe with a
suitable jack stand. |
3. |
Remove muffler clamp or cut exhaust
pipe before muffler, as required. |
4. |
Remove exhaust/muffler isolators as
required. |
5. |
Remove muffler assembly from vehicle. |
6. |
Reverse procedure to install. Inspect
to see if exhaust system isolators are at zero load, if exhaust
system isolators are not at zero load, re-align exhaust system. |
|
1.
Raise and support vehicle.
2.
Remove wheel drive shaft heat shield.
3.
Remove Heated Oxygen Sensor (HO2S).
...
Removal
Warning: Approved safety glasses
and gloves should be worn when performing this procedure to reduce the chance
of personal injury.
Caution: Do not over flex or
...
See also:
Chevrolet Cobalt Service & Repair Manual. Cylinder Head Overhaul
It is usually recommended to send
head to machine shop for complete overhaul.
Cylinder head must be cool before
removing it from engine. Cylinder head warpage can result if a warm or hot
cylinder head is removed.
Place clean shop towels over exposed
e ...