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Why is their no spark on the number 1 cylinder on a Chevy 350 with HEI distributor?
Wiki User
∙ 14y ago
The most likely causes are either a bad plug or bad wire. Take the electrical circuit apart one by one and work backward from the plug. Pull the spark plug boot off the plug and push a test light into where the plug head would be, making sure to have the tip against the metal in the boot's clip. Spin the engine, but don't start it. You're just looking for spark. If the test light doesn't light, you have no spark to the plug. Next, take the plug wire off the distributor and put the tip of the test light against the metal on the distributor cap where the wire was connected and spin the engine again. If the light still doesn't light, then it is most likely the distributor cap. If it does light up, then you have a bad plug wire. or it may be your distributor module.
Wiki User
∙ 14y ago
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