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 MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1620 (ENGINE MECHANICAL - 3.8L)
2004 Oldsmobile Bravada AWD
Section 1620 (Engine Mechanical - 3.8L)
2004 Oldsmobile Bravada AWDSECTION Section 1620 (Engine Mechanical - 3.8L)
WARNING: This page is about a different car, the 2003 Buick Regal. 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
- Fuel Injector Sight Shield Replacement (L36)
- Fuel Injector Sight Shield Replacement (L67)
- Drive Belt Replacement (L36)
- Drive Belt Replacement (L67)
- Drive Belt Tensioner Replacement
- Drive Belt Tensioner Replacement - Supercharger
- Drive Belt Idler Pulley Replacement - Upper
- Drive Belt Idler Pulley Replacement - Lower
- Drive Belt Idler Pulley Bracket Replacement
- Engine Mount Inspection
- Engine Support Fixture
- Engine Mount and Bracket Replacement
- Engine Mount Strut Replacement - Right
- Engine Mount Strut Replacement - Left
- Engine Mount Strut Bracket Replacement - Upper Radiator Support
- Engine Mount Strut Bracket Replacement - Left
- Engine Mount Strut Bracket Replacement - Right Upper (L36)
- Engine Mount Strut Bracket Replacement - Right Upper (L67)
- Engine Mount Strut Bracket Replacement - Right Lower
- Positive Crankcase Ventilation (PCV) Valve Replacement (L36)
- Positive Crankcase Ventilation (PCV) Valve Replacement (L67)
- Oil Level Indicator and Tube Replacement
- Supercharger Oil Level Inspection
- Supercharger Replacement
- Intake Manifold Replacement - Upper
- Intake Manifold Replacement - Lower (L36)
- Intake Manifold Replacement - Lower (L67)
- 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
- Crankshaft Front Oil Seal Replacement
- Engine Front Cover Replacement
- Oil Pump Cover and Gear Set Replacement
- Oil Filter Adapter and Bypass Valve Assembly Replacement
- Timing Chain and Sprockets Replacement
- Cylinder Head Replacement - Left
- Cylinder Head Replacement - Right
- Oil Pan Replacement
- Engine Oil Pressure Sensor and/or Switch Replacement
- Engine Oil Level Sensor and/or Switch Replacement
- Oil Pump Pipe and Screen Assembly Replacement
- Connecting Rod Bearing Replacement
- Engine Flywheel Replacement
- Crankshaft Rear Oil Seal Replacement
- Crankshaft Rear Oil Seal and Housing Replacement
- Engine Replacement
- Engine Oil and Oil Filter Replacement
- Off-Vehicle Repair Instructions
- Rotating the Engine for Service Access
- Draining Fluids and Oil Filter Removal
- Crankshaft Balancer Removal
- Engine Flywheel Removal
- Drive Belt Tensioner Removal - Supercharger
- Drive Belt Tensioner Removal
- Drive Belt Idler Pulley Removal (L67)
- Drive Belt Idler Pulley Bracket Removal (L67)
- Oil Level Indicator and Tube Removal
- Water Outlet and Thermostat Removal (L36)
- Water Outlet and Thermostat Removal (L67)
- Water Pump Removal
- Supercharger Removal
- Intake Manifold Removal - Upper
- Exhaust Gas Recirculation (EGR) and EGR Pipe Removal
- Intake Manifold Removal - Lower (L36)
- Intake Manifold Removal - Lower (L67)
- Exhaust Manifold Removal - Left
- Exhaust Manifold Removal - Right
- Valve Rocker Arm Cover Removal - Left
- Valve Rocker Arm Cover Removal - Right
- Valve Rocker Arm and Push Rod Removal
- Cylinder Head Removal - Left
- Cylinder Head Removal - Right
- Valve Lifter Removal
- Oil Pan Removal
- Oil Pump Pipe and Screen Assembly Removal
- Crankshaft Front Oil Seal Removal
- Engine Front Cover Removal
- Oil Filter Adapter Removal
- Timing Chain and Sprockets Removal (L36)
- Timing Chain and Sprockets Removal (L67)
- Balance Shaft Removal
- Camshaft Removal
- Crankshaft Rear Oil Seal Removal
- Crankshaft Rear Oil Seal and Housing Removal
- Piston, Connecting Rod, and Bearing Removal
- Crankshaft and Bearings Removal
- Engine Block Plug Removal
- Camshaft Bearing Removal
- Balance Shaft Bearing and/or Bushing Removal
- Engine Block Cleaning and Inspection
- Cylinder Boring and Honing
- Crankshaft and Bearings Cleaning and Inspection
- Crankshaft Balancer Cleaning and Inspection
- Engine Flywheel Cleaning and Inspection
- Piston and Connecting Rod Disassemble
- Piston, Connecting Rod, and Bearings Cleaning and Inspection
- Piston and Connecting Rod Assemble
- Camshaft and Bearings Cleaning and Inspection
- Timing Chain and Sprockets Cleaning and Inspection (L36)
- Timing Chain and Sprockets Cleaning and Inspection (L67)
- Valve Rocker Arm and Push Rods Cleaning and Inspection
- Valve Lifters and Guides 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
- Engine Front Cover Cleaning and Inspection
- Oil Pump Assemble
- Valve Rocker Arm Cover Cleaning and Inspection
- Oil Pan Cleaning and Inspection
- Supercharger Cleaning and Inspection
- Intake Manifold Cleaning and Inspection - Upper
- Intake Manifold Cleaning and Inspection - Lower (L36)
- Intake Manifold Cleaning and Inspection - Lower (L67)
- Exhaust Manifold Cleaning and Inspection
- Water Pump Cleaning and Inspection
- Balance Shaft Cleaning and Inspection
- Thread Repair
- Service Prior to Assembly
- Engine Prelubing
- Balance Shaft Bearing and/or Bushing Installation
- Camshaft Bearing Installation
- Engine Block Plug Installation
- Crankshaft and Bearings Installation
- Piston, Connecting Rod, and Bearing Installation
- Crankshaft Rear Oil Seal and Housing Installation
- Crankshaft Rear Oil Seal Installation
- Camshaft Installation
- Balance Shaft Installation
- Timing Chain and Sprockets Installation (L36)
- Timing Chain and Sprockets Installation (L67)
- Oil Filter Adapter Installation
- Engine Front Cover Installation
- Crankshaft Front Oil Seal Installation
- Oil Pump Pipe and Screen Assembly Installation
- Oil Pan Installation
- Valve Lifter Installation
- Cylinder Head Installation - Right
- Cylinder Head Installation - Left
- Valve Rocker Arm and Push Rod Installation
- Valve Rocker Arm Cover Installation - Right
- Valve Rocker Arm Cover Installation - Left
- Exhaust Manifold Installation - Right
- Exhaust Manifold Installation - Left
- Intake Manifold Installation - Lower (L36)
- Intake Manifold Installation - Lower (L67)
- Exhaust Gas Recirculation (EGR) and EGR Pipe Installation
- Intake Manifold Installation - Upper
- Supercharger Installation
- Water Pump Installation
- Water Outlet and Thermostat Installation (L36)
- Water Outlet and Thermostat Installation (L67)
- Oil Level Indicator and Tube Installation
- Drive Belt Idler Pulley Bracket Installation (L67)
- Drive Belt Idler Pulley Installation (L67)
- Drive Belt Tensioner Installation
- Drive Belt Tensioner Installation -Supercharger
- Engine Flywheel Installation
- Crankshaft Balancer Installation
- On-Vehicle Repair Instructions
- Description and Operation
- Special Tools and Equipment
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.