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 MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 173 (ENGINE CONTROL SYSTEM TESTING & ENGINE COMPONENT TESTING)COMPONENT LOCATIONSCOMPONENT LOCATIONS (5.7L VIN G - CORVETTE)
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Component Locations (5.7L VIN G - Corvette)
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Component Locations (5.7L VIN G - Corvette)
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COMPONENT LOCATIONS (5.7L VIN G - CORVETTE)
| Component | Location |
|---|---|
| A/C Refrigerant Pressure Sensor | Attached To A/C High Side Line |
| Body Control Module | Mounted On Toe Board |
| Cooling Fan Relays | In Right Side Of Engine Compartment, In Underhood Electrical Center |
| Data Link Connector | Under Left Side Of Instrument Panel |
| Engine Coolant Temperature Sensor | Left Side Of Engine, Below Generator |
| Engine Oil Level Switch | Right Side Of Oil Pan |
| Engine Oil Pressure Sensor | Top Center, Rear Of Engine |
| EVAP Canister Purge Solenoid | At Left Side Of Engine, On Intake Manifold |
| EVAP Canister Vent Solenoid | Right Side Rear Compartment Brace, Inside Rear wheelwell Panel |
| Fuel Injectors | In Intake Manifold |
| Ignition Control Modules | On Valve Cover At Top Of Each Cylinder |
| Intake Air Temperature Sensor | Part Of MAF Sensor |
| Knock Sensors | Center Of Engine, Below Intake Manifold |
| Manifold Absolute Pressure Sensor | Rear Of Intake Manifold |
| Mass Airflow Sensor | In Intake Duct Before Air Filter Assembly |
| Post-Converter Oxygen Sensors | Rear Of Catalytic Converters |
| Powertrain Control Module | On Right Side Of Engine Compartment, Rear Of Wheelwell |
| Pre-Converter Oxygen Sensors | Rear Of Engine, In Exhaust Manifolds |
| Throttle Actuator Control Module | Mounted On Side Of Powertrain Control Module, Below Battery |
| Throttle Actuator Motor | Left Side Of Throttle Body |
| Throttle Position Sensor | On Throttle Body |
| Transaxle Range Switch | Left Side Of Transmission |
| Underhood Electrical Center | Right Side Of Engine Compartment, Between Wheelwell & Instrument Panel |
| Vehicle Speed Sensor | At Top Right Of Differential |
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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.