Question about 1984 Chevrolet K1500

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1984 chevy p/u with 305 no spark

Rebuilt dist & changed EST Module & still no spark to spark plugs what else can cause no spark?

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Computer coil power try to disconet the spout wire..... its under the hood by passenger firewall ....... its a brown wire or behind the glovebox

Posted on Oct 21, 2008

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Visual inspection to confirm dist rotor is turning. Check pick up coil under rotor, 2 small wires, green and white tend to break, pull on them slightly to check. The rotor can burn thru and short to ground. try these.

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Had an 84 silverado 305 that did the same thing. Try giving it a full tune up. Plugs, wires... Mine turned out to be fouled plugs. I didn't find that out till after i tore it down & put a timing set in it. Wasn't getting good enough spark.

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You have spark on the coil wire but not coming from the cap. You replaced the cap right. Did you replace the rotor too. Sometimes the rotor burn in the center and the spark goes right thru it in to the distributor shaft.

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