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 MANUALSSATURN2000SC2 AUTOMATIC, MP6REPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL SYSTEMDIAGNOSTICSTHROTTLE BODY ASSEMBLY CLEANING AND INSPECTION

2000 Saturn SC2 Automatic, MP6

Throttle Body Assembly Cleaning And Inspection

2000 Saturn SC2 Automatic, MP6SECTION Throttle Body Assembly Cleaning And Inspection

NOTE: The TP sensor and IAC valve must NOT come in contact with solvent or cleaner, as they may be damaged.

The throttle bore and valve deposits may be cleaned on-vehicle, using carburetor cleaner (Saturn P/N 21007432) and a shop towel. Follow instructions on container. Do not use a cleaner that contains methyl ethyl ketone, an extremely strong solvent which is not necessary for this type of deposit.
Remove and clean IAC valve O-ring sealing surface, pintle valve seat and air passage, if necessary.

Fig 1: Throttle Body Assembly
Courtesy of GENERAL MOTORS CORP.
- Use carburetor cleaner and a parts cleaning brush to remove carbon deposits. Follow instructions on container. Do not use a cleaner that contains methyl ethyl ketone, an extremely strong solvent, which is not necessary for this type of deposit.
- Shiny spots on the pintle or seat are normal and do not indicate misalignment or a bent pintle shaft.
- If air passage has heavy deposits, remove throttle body for complete cleaning.
Inspect IAC valve O-ring for cuts, cracks or distortion. Replace if damaged.

NOTE: If installing a new IAC valve, be sure to replace with an identical part. IAC valve pintle shape and diameter are designed for the specific application.

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.