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.
2001 Oldsmobile Intrigue GLSFACTORY OEM SERVICE PROCEDURE
Diagnostic Procedures
- Perform POWERTRAIN DIAGNOSTIC SYSTEM CHECK under DIAGNOSTIC SYSTEM CHECKS. If DTC or driveability concern was repaired using powertrain diagnostic system check, go to step 3. If no DTC or driveability concern was repaired using powertrain diagnostic system check, go to next step.
- Check for applicable Technical Service Bulletins (TSB) for software updates that may prevent Inspection/Maintenance (I/M) readiness. Perform any reprogramming or repairs indicated by TSBs. If reprogramming or repair service was required, go to INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE . If reprogramming or repair service was not required, go to next step.
- Using scan tool, observe I/M system status display. If more than one test indicates a NO status, go to INSPECTION/MAINTENANCE COMPLETE SYSTEM SET PROCEDURE . If only one test indicates a NO status, perform appropriate I/M system set procedure for indicated system. See INSPECTION/MAINTENANCE SYSTEM SET PROCEDURE INDEX table.INSPECTION/MAINTENANCE SYSTEM SET PROCEDURE INDEX
System With NO Status Perform AIR System INSPECTION/MAINTENANCE AIR SYSTEM SET PROCEDURE Catalyst System INSPECTION/MAINTENANCE CATALYST SYSTEM SET PROCEDURE EGR System INSPECTION/MAINTENANCE EXHAUST GAS RECIRCULATION SYSTEM SET PROCEDURE EVAP System INSPECTION/MAINTENANCE EVAPORATIVE EMISSION SYSTEM SET PROCEDURE HO2S System INSPECTION/MAINTENANCE HEATED OXYGEN SENSOR/OXYGEN SENSOR SYSTEM SET PROCEDURE HO2S Heater System INSPECTION/MAINTENANCE HEATED OXYGEN SENSOR HEATER SYSTEM SET PROCEDURE
Factory Service Tools
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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.
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