Standard Ignition CV329 Carburetor Choke Thermostat

Carburetor Choke Thermostat for Rochester Carburetors

Standard Ignition CV329 is a carburetor choke thermostat for Rochester carburetor applications across a wide range of GM cars, trucks, vans, and chassis from 1980-1989. Use it when you need a direct-fit replacement for choke control on supported Chevrolet, GMC, Buick, Oldsmobile, and Pontiac vehicles.

• Carburetor choke thermostat for Rochester carburetor systems
• Fits a broad range of GM applications, including Chevrolet C10, Camaro, Caprice, Monte Carlo, and GMC C1500 models
• Supports choke operation on many 1980s GM passenger cars and trucks
• Standard Ignition CV329 replacement part number for service matching
• Application-specific fitment by year, make, model, and emissions configuration

Detailed Fitment and Function

This Standard Ignition CV329 choke thermostat is used in Rochester carburetor setups to help regulate choke behavior during cold starts and warm-up. It is listed for 648 expanded vehicle applications, including Fits 1985-1986 Chevrolet C10, N/A; Fits 1984 Chevrolet Caprice, N/A; and Fits 1981 Pontiac Firebird, N/A, along with many other Chevrolet, GMC, Buick, Oldsmobile, and Pontiac models. The part number CV329 is a practical match for owners servicing older GM carbureted engines that rely on correct choke thermostat operation for consistent drivability.

This part cross-references Standard Ignition CV329 for the same application.

Common Problems It Can Address

• Hard starting when the engine is cold
• Choke staying on too long after startup
• Choke opening too early and causing rough cold operation
• Unstable idle during warm-up
• Driveability issues on Rochester carburetor-equipped GM vehicles

Installation Notes and Tips

Verify the Rochester carburetor number and emissions configuration before ordering, since fitment varies by application. Match the vehicle year, make, and model exactly to the listed notes, especially on Chevrolet C10, GMC C1500, and Pontiac Firebird applications. Inspect the choke linkage and surrounding carburetor components during service so the replacement thermostat can operate correctly after installation.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for ignition and fuel-system service parts. CV329 is cataloged for specific Rochester carburetor applications to support accurate replacement selection.