Throttle Body Inspection and Cleaning. Geo Metro 1997

For 1990-2009 cars only

Makes 🢒 Geo 🢒 1997 🢒 Metro 🢒 Engine 🢒 Engine Controls - 1.0L 🢒 Throttle Body Inspection and Cleaning

Cleaning Procedure

Notice: Do not place the following components in a solvent or cleaner bath:

•	The Throttle Position (TP) sensor

•	The fuel pressure regulator diaphragm assembly

•	The fuel injector

•	Any other components containing rubber or electrical parts

Do not soak the TBI unit with these components attached. Keep the soaking time in the cleaner to a minimum if the TBI unit requires cleaning. Follow these instructions in order to avoid damage to the TBI unit and component parts.

Important: Use only Carbon X (X-55) or an equivalent cold immersion cleaner for soaking the throttle body fuel injection (TBI) unit assemblies.

•	Soak the metal parts of the TBI assemblies in a cleaner bath if necessary.

•	Remove any dirt or burns from the fuel and air passages in the TBI assemblies.

Caution: Wear safety glasses when using compressed air in order to prevent eye injury.

•	Dry all metal components with compressed air.

•	Clean the passages and the fuel injector chamber with compressed air.

Inspection Procedure

•	Inspect the casting mating surfaces for damage that will affect proper gasket sealing.

•	Inspect the throttle valve and throttle shaft for free and smooth movement.

•	Inspect the fuel injector inlet filter for dirt or damage. If dirt is present check for foreign materials in the fuel pipes and the fuel tank. Repair as necessary.