Brothers 4.3 has major issues.

By 1BADHD
September 29, 2003 in 1999-2013 Silverado 1500 & Sierra 1500

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1BADHD

Posted September 29, 2003

My brother has a 99 silverado with a 4.3 V-6. It has no spark. What could cause this? We have replaced the coil, module, plugs, wires, cap and rotor. The only thing left I know of is the crankshaft position sensor and ECM. Anyone have any ideas?

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