1975-76 Models
- Obtain 2 different colored wires that are at least 30" (760 mm) long. Obtain 2 alligator clips and a female connector that will plug into cold start valve. Fabricate cold start valve jumper wire. See Fig 1.
- Remove cold start valve from engine. DO NOT disconnect fuel line. Place cold start valve into fuel resistant container with nozzle pointing down into container.
NOTE:
Since thermo-time switch opens cold start valve of a cold engine, ensure switch is properly operating. See THERMO-TIME SWITCH TEST in this article.
- Remove connector from cold start valve. Connect one terminal of valve to ignition coil terminal. Connect remaining valve terminal to ground. Remove fuel pump relay from fuse block and connect a jumper wire between terminals No. 13 and 14 marked in fuse block.
- Disconnect airflow sensor and positive lead at alternator. Have an assistant turn ignition on. Fuel should spray from cold start valve into container in a steady cone-shaped pattern.
- Disconnect jumper wire at ignition coil and check cold start valve for leaks. With ignition on (fuel pump running). Wipe nozzle of cold start valve dry with clean cloth. No drops of fuel should form on tip of valve within one minute. Replace cold start valve leaks or does not perform as specified.
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