Chevrolet Cobalt Service & Repair Manual: Engine Coolant Thermostat Housing R&R
| Refer to Fig. 1
when performing the following procedure. |
| 1. |
Partially drain the coolant system. |
| 2. |
Remove the thermostat. |
| 3. |
Disconnect the inlet and outlet heater
hoses. |
| 4. |
Remove the catalytic converter. |
| 5. |
Remove the oxygen (O2) sensor. |
| 6. |
Remove the charge air cooler. |
| 7. |
Remove the AC evaporative emissions
(EVAP) hose assembly and the rear condenser tube. |
| 8. |
Disconnect the brake booster vacuum
hose and reposition. |
| 9. |
Disconnect the shifter bracket from
the transmission and reposition. Leave the cables attached. |
| 10. |
Remove the turbo exhaust pipe heat
shield bolts (1) and shield (2), Fig. 2. |
| 11. |
Remove the turbocharger coolant return
pipe. |
| 12. |
Disconnect the coolant temperature
sensor harness connector. |
| 13. |
Remove thermostat housing and water
inlet seal. |
| 14. |
Reverse procedure to install, noting
the following: |
| |
a. |
Torque thermostat housing bolts
to 89 inch lbs. |
| |
b. |
Torque turbocharger coolant
return pipe banjo bolts to 26 ft. lbs. |
| |
c. |
Torque turbocharger exhaust
pipe elbow nuts to 37 ft. lbs. |
| |
d. |
Torque turbocharger brace bolts
and nuts to 43 ft. lbs. |
| |
e. |
Torque turbocharger heat shield
bolts to 80 inch lbs. |
|
Fig. 1 Engine coolant thermostat housing replacement
Fig. 2 Turbocharger heat shield replacement
Refer to Fig. 1
when performing the following procedure.
1.
Disconnect the negative battery cable.
2.
Remove the cover from th ...
Caution: Air conditioning R-134a
liquid refrigerant is capable of harming eyes or freezing skin. Always wear
safety goggles and avoid contact with liquid refrigerant. Failure to follow ...
See also:
Chevrolet Cobalt Owners Manual. Where Are the Airbags?
The driver's frontal airbag is in the middle of the
steering wheel.
The right front passenger's airbag is in the instrument
panel on the passenger's side.
Driver Side shown, Passenger Side similar
If your vehicle has roof-rail airbags for the driver, right
front passenger, and second row ...
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