Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2007COBALT L4-2.2LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINEINTAKE MANIFOLDSERVICE AND REPAIRINTAKE MANIFOLD REPLACEMENT
2007 Chevrolet Cobalt L4-2.2L
Intake Manifold Replacement
2007 Chevrolet Cobalt L4-2.2LSECTION Intake Manifold Replacement
Intake Manifold Replacement
Removal Procedure
1. Remove the air cleaner outlet resonator.
2. Remove the throttle body.
3. Disconnect the positive crankcase ventilation (PCV) hose.
4. Disconnect the purge solenoid tube.
5. Disconnect the brake booster hose.
6. Remove the oil level indicator tube bolt.
7. Remove the fuel rail.
8. Disconnect the knock sensor electrical connector.
9. Remove the knock sensor harness connector from the intake manifold.
10. Remove the intake manifold nuts and bolts.
11. Remove the intake manifold.
Important: The intake manifold gasket is reusable, only replace the gasket if damage has occurred.
12. If applicable, remove the intake manifold gasket.
Installation Procedure
1. If applicable, install the intake manifold gasket.
2. Install the intake manifold.
Notice: Refer to Fastener Notice.
3. Install the intake manifold nuts and bolts.
Tighten the intake manifold nuts and bolts to 10 N.m (89 lb in).
4. Install the knock sensor harness connector to the intake manifold.
5. Connect the knock sensor electrical connector.
6. Install the fuel rail.
7. Install the throttle body.
8. Install the oil level indicator tube bolt.
Tighten the oil level indicator tube bolt to 10 N.m (89 lb in).
9. Connect the brake booster hose.
10. Connect the purge solenoid tube.
11. Connect the PCV hose.
12. Install the throttle body.
13. Install the air cleaner outlet resonator.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.