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International Automotive Technicians Network
Re: Quad 4 no spark on 1 and 3
Posted to Technical Discussion Forum on 5/12/2002

I have not seen it on the Quad 4 but have a number of times on the Northstar famliy, the spark plug is open Fluke 87 display os "OL". I have had this cause coil failure and running problems no a number of engines. The last time I saw this the 100K plug was 15K... Login to read more.