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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 356 (ENGINE MECHANICAL - 3.9L)
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Section 356 (Engine Mechanical - 3.9L)
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Section 356 (Engine Mechanical - 3.9L)
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Engine Mechanical
- Symptoms - Engine Mechanical
- Base Engine Misfire without Internal Engine Noises
- Base Engine Misfire with Abnormal Internal Lower Engine Noises
- Base Engine Misfire with Abnormal Valve Train Noise
- Base Engine Misfire with Coolant Consumption
- Base Engine Misfire with Excessive Oil Consumption
- Engine Noise on Start-Up, but Only Lasting a Few Seconds
- Upper Engine Noise, Regardless of Engine Speed
- Lower Engine Noise, Regardless of Engine Speed
- Engine Noise Under Load
- Engine Will Not Crank - Crankshaft Will Not Rotate
- Coolant in Combustion Chamber
- Coolant in Engine Oil
- Engine Compression Test
- Cylinder Leakage Test
- Oil Consumption Diagnosis
- Oil Pressure Diagnosis and Testing
- Oil Leak Diagnosis
- Crankcase Ventilation System Inspection/Diagnosis
- Drive Belt Chirping Diagnosis
- Drive Belt Squeal Diagnosis
- Drive Belt Whine Diagnosis
- Drive Belt Rumbling Diagnosis
- Drive Belt Vibration Diagnosis
- Drive Belt Falls Off Diagnosis
- Drive Belt Excessive Wear Diagnosis
- Drive Belt Tensioner Diagnosis
- Repair Instructions
- On-Vehicle Repair Instructions
- Intake Manifold Cover Replacement
- Drive Belt Replacement
- Drive Belt Idler Pulley Replacement
- Drive Belt Tensioner Replacement
- Engine Support Fixture
- Engine Mount Inspection
- Engine Mount Replacement
- Engine Mount Bracket Replacement
- Engine Mount Strut Replacement
- Engine Mount Strut Bracket Replacement - Left
- Engine Mount Strut Bracket Replacement - Right
- Oil Filter Adapter and Bypass Valve Assembly Replacement
- Oil Level Indicator and Tube Replacement
- Intake Manifold Replacement - Upper
- Intake Manifold Replacement - Lower
- Crankcase Ventilation Hoses/Pipes Replacement
- Valve Rocker Arm Cover Replacement - Left
- Valve Rocker Arm Cover Replacement - Right
- Valve Rocker Arm and Push Rod Replacement
- Valve Stem Oil Seal and Valve Spring Replacement
- Valve Lifter Replacement
- Crankshaft Balancer Replacement
- Oil Pan Replacement
- Engine Oil Pressure Sensor and/or Switch Replacement
- Engine Oil Level Sensor and/or Switch Replacement
- Oil Pump Replacement
- Oil Pump Drive Replacement
- Crankshaft Front Oil Seal Replacement
- Camshaft Position Actuator Magnet Replacement
- Engine Front Cover Replacement
- Timing Chain and Sprockets Replacement
- Cylinder Head Replacement - Left
- Cylinder Head Replacement - Right
- Engine Flywheel Replacement
- Crankshaft Rear Oil Seal Replacement
- Camshaft Rear Bearing Hole Plug Replacement
- Engine Replacement
- Engine Oil and Oil Filter Replacement
- Off-Vehicle Repair Instructions
- Draining Fluids and Oil Filter Removal
- Crankshaft Balancer Removal
- Engine Flywheel Removal (Automatic Transmission)
- Engine Flywheel Removal (Manual Transmission)
- Drive Belt Tensioner Removal
- Engine Mount Strut and Engine Lift Bracket Removal
- Engine Mount Support and Strut Bracket Removal
- Coolant Crossover Pipe Removal
- Oil Level Indicator and Tube Removal
- Oil Filter Adapter Removal
- Exhaust Crossover Pipe Removal
- Exhaust Manifold Removal - Left
- Exhaust Manifold Removal - Right
- Water Outlet and Thermostat Removal
- Valve Rocker Arm Cover Removal - Left
- Valve Rocker Arm Cover Removal - Right
- Intake Manifold Removal - Upper
- Intake Manifold Removal - Lower
- Valve Rocker Arm and Push Rod Removal
- Valve Lifter Removal
- Water Pump Removal
- Cylinder Head Removal - Left
- Cylinder Head Removal - Right
- Oil Pan Removal
- Oil Pump Removal
- Camshaft Position Actuator Magnet Removal
- Oil Pump Drive Removal
- Crankshaft Front Oil Seal Removal
- Engine Front Cover Removal
- Timing Chain and Sprockets Removal
- Camshaft Removal
- Piston, Connecting Rod, and Bearing Removal
- Crankshaft Rear Oil Seal Removal
- Crankshaft and Bearings Removal
- Piston Oil Nozzle Removal
- Camshaft Bearing Removal
- Engine Block Disassemble
- Engine Block Heater Removal
- Engine Block Cleaning and Inspection
- Cylinder Boring and Honing
- Engine Block Assemble
- Piston Oil Nozzle Cleaning and Inspection
- Crankshaft and Bearings Cleaning and Inspection
- Crankshaft Balancer Cleaning and Inspection
- Engine Flywheel Cleaning and Inspection
- Piston, Connecting Rod, and Bearings Cleaning and Inspection
- Camshaft and Bearings Cleaning and Inspection
- Timing Chain and Sprockets Cleaning and Inspection
- Camshaft Position Actuator Magnet Cleaning and Inspection
- Camshaft Position Actuator Cleaning and Inspection
- Valve Lifters Cleaning and Inspection
- Valve Rocker Arm and Push Rods Cleaning and Inspection
- Cylinder Head Disassemble
- Cylinder Head Cleaning and Inspection
- Valve Guide Reaming/Valve and Seat Grinding
- Cylinder Head Assemble
- Oil Pump Disassemble
- Oil Pump Cleaning and Inspection
- Oil Pump Assemble
- Engine Front Cover Cleaning and Inspection
- Valve Rocker Arm Cover Cleaning and Inspection
- Positive Crankcase Ventilation (PCV) Valve Cleaning and Inspection
- Oil Pan Cleaning and Inspection
- Intake Manifold Cleaning and Inspection - Lower
- Intake Manifold Cleaning and Inspection - Upper
- Exhaust Manifold Cleaning and Inspection
- Water Pump Cleaning and Inspection
- Thread Repair
- Service Prior to Assembly
- Camshaft Bearing Installation
- Piston Oil Nozzle Installation
- Crankshaft and Bearings Installation
- Engine Block Heater Installation
- Crankshaft Rear Oil Seal Installation
- Piston, Connecting Rod, and Bearing Installation
- Camshaft Installation
- Timing Chain and Sprockets Installation
- Engine Front Cover Installation
- Crankshaft Front Oil Seal Installation
- Oil Pump Drive Installation
- Camshaft Position Actuator Magnet Installation
- Oil Pump Installation
- Oil Pan Installation
- Cylinder Head Installation - Left
- Cylinder Head Installation - Right
- Water Pump Installation
- Valve Lifter Installation
- Valve Rocker Arm and Push Rod Installation
- Intake Manifold Installation - Lower
- Intake Manifold Installation - Upper
- Valve Rocker Arm Cover Installation - Left
- Valve Rocker Arm Cover Installation - Right
- Water Outlet and Thermostat Installation
- Exhaust Manifold Installation - Left
- Exhaust Manifold Installation - Right
- Exhaust Crossover Pipe Installation
- Oil Filter Adapter Installation
- Oil Level Indicator and Tube Installation
- Coolant Crossover Pipe Installation
- Engine Mount Support and Strut Bracket Installation
- Engine Mount Strut and Engine Lift Bracket Installation
- Drive Belt Tensioner Installation
- Engine Flywheel Installation (Automatic Transmission)
- Engine Flywheel Installation (Manual Transmission)
- Crankshaft Balancer Installation
- Engine Prelubing
- On-Vehicle Repair Instructions
- Description and Operation
- Special Tools and Equipment
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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.