GM 96069432 Carburetor

To remove the carburetor, first relieve fuel tank pressure by removing the fuel filler cap. Next, take off the air cleaner from the carburetor, ensuring all vacuum hoses attached to the air cleaner housing are labeled. Disconnect the throttle cable from the throttle lever, and if the vehicle has an automatic transmission, disconnect the TV cable from the throttle lever as well. Clearly label all vacuum hoses and fittings before disconnecting them, then disconnect the fuel line from the carburetor. Label the wires and terminals, and unplug all wire harness connectors. Remove the mounting fasteners to detach the carburetor from the intake manifold, and take out the carburetor mounting gasket, stuffing a shop rag into the intake manifold openings. For installation, use a gasket scraper to eliminate all traces of gasket material and sealant from the intake manifold and the carburetor if it is being reinstalled, then remove the shop rag from the manifold openings and clean the mating surfaces with lacquer thinner or acetone. Place a new gasket on the intake manifold, position the carburetor on the gasket, and install the mounting fasteners. To avoid carburetor distortion or damage, tighten the fasteners to the specified torque in a criss-cross pattern, 1/4-turn at a time. The remaining installation steps follow the reverse order of removal. Finally, check and adjust the idle speed if necessary, then start the engine and carefully check for fuel leaks.

Due to ongoing modifications in carburetor designs for emissions compliance, detailed instructions specific to the carburetor type will be provided with any overhaul kit.

Start the engine and allow it to warm up; the choke should be fully open after one accelerator depression. If it is not, and the clearance is correct, there may be an issue with the choke linkage. If the clearance is not as specified, remove the carburetor and adjust the choke lever by removing the idle-up actuator, turning the fast idle cam counterclockwise, and locking it in place with a pin. Adjust the choke lever with pliers until the specified clearance is achieved, then reinstall the carburetor and check the choke again.