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1992 omc cobra 5L Ford Tach/Interupter Switch Issue

Kevinob

New member
I have a 1992 seaswirl with a 5L ford engine. Earlier this year I had a remanufactured engine installed and everything was working fine. The tachometer started cutting in/out and then stopped working. Shortly after the shift interupter stopped working. I have the OMC shop manual and can not find a link between the two. I have checked the interupter switch with an ohm meter and it works properly. I have removed and cleaned the wires connected to the coil. I do not know how to check the ESA. Has anyone had a similar problem and/or does anyone know if the tachometer and ESA could be related issues.
 
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