Trevor1978 Posted May 22, 2017 Share Posted May 22, 2017 I have a 1978 Mack R685ST and the turn signals do not work. When I turn the headlights on the headlights dont come on but the side marker lights do and so does the tail lights. I am lost and do not know what to look for any help would be nice. Quote Link to comment Share on other sites More sharing options...
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