texastech Posted October 18, 2017 Share Posted October 18, 2017 Got a 2010 Mack chu613, the headlights when on daytime running will light up then go out and repeat until you cut on the head lights. Also while it's doing that the highbeam indicator will light up on the instrument cluster. Any Ideas to what the problem could be? Quote Link to comment Share on other sites More sharing options...
fjh Posted October 18, 2017 Share Posted October 18, 2017 Have you changed any headlight bulbs lately? The wrong bulb will make these do weird stuff! Quote Link to comment Share on other sites More sharing options...
dogg rescue Posted October 19, 2017 Share Posted October 19, 2017 Sounds like something is back- feeding, clean up your grounds. Quote Link to comment Share on other sites More sharing options...
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