Corsica L4-134 2.2L (1991)
Throttle Body: Service and Repair
Throttle Body Assembly Removal and Replacement
TBI Assembly Mounting (typical).
Model 700 TBI
CAUTION: The throttle bore and valve deposits may be cleaned on the vehicle, using carburetor cleaner and a parts cleaning brush. Do Not use a
cleaner that contains Methyl Ethyl Ketone. It is an extremely strong solvent, and not necessary for this type of deposit.
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The throttle body parts may be cleaned following disassembly, in a cold immersion type cleaner such as GM X-55 or equivalent.
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The throttle position sensor (TPS) and idle air control (IAC) valve should not come in contact with solvent or cleaner, as they are electrical
components and may be damaged.
REMOVAL:
1.
Relief fuel pressure. See: Fuel Filter/Fuel Pressure Release/Service and Repair
