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 MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 230 (ENGINE CONTROLS - 3.5L (L66) INTRODUCTION)REPAIR INSTRUCTIONSIDLE LEARN PROCEDUREIDLE SPEED INSPECTION
2006 Pontiac G6 GTP, 2D Coupe, Standard
Idle Speed Inspection
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Idle Speed Inspection
WARNING: This page is about a different car, the 2005 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Install a scan tool.
- Ensure that all electrical loads and accessories are OFF.
- Turn OFF the air conditioning.
- Ensure that the vehicle is in PARK or NEUTRAL.
- Start and run the engine until the ECT is at least 80°C (176°F).
- Ensure that the scan tool data parameter Engine at Operating Temperature says YES.
- Observe that the engine speed is 730 RPM +/-50 RPM with the scan tool.
- Idle the engine for 1 minute with the AC ON and the blower motor operating on HIGH.
- Observe that the engine speed is 730 RPM +/-50 RPM with the scan tool.
- Compare the engine speed at idle with the scan tool to the following specifications:
- All engine accessories OFF-730 RPM +/-50 RPM
- Turn the AC ON and the heater fan on HIGH-730 RPM +/-50 RPM
- If the scan tool indicated that the engine idle was within the specified values, the idle speed is normal.
- If the scan tool indicated that the engine idle was more than or less than specified values, refer to Rough, Unstable, or Incorrect Idle and Stalling .
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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.