hicrop10 Posted October 20, 2023 Share Posted October 20, 2023 Have a question for you all.My 79 r model when the key is turned off should the volt meter be reading anything or should it be reading nothing? Quote Link to comment https://www.bigmacktrucks.com/topic/73449-1979-r-model/ Share on other sites More sharing options...
Geoff Weeks Posted October 20, 2023 Share Posted October 20, 2023 Most will be wired to the key switch, so the read nothing when the key is off, otherwise they become a slight draw on the system. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73449-1979-r-model/#findComment-540717 Share on other sites More sharing options...
hicrop10 Posted October 20, 2023 Author Share Posted October 20, 2023 Mine has a reading with the key switch off,any ideas on where I should start looking for the draw? Quote Link to comment https://www.bigmacktrucks.com/topic/73449-1979-r-model/#findComment-540723 Share on other sites More sharing options...
skydawg Posted October 21, 2023 Share Posted October 21, 2023 Put a test light between the battery and cable and start pulling fuses. Quote Link to comment https://www.bigmacktrucks.com/topic/73449-1979-r-model/#findComment-540759 Share on other sites More sharing options...
mrsmackpaul Posted October 21, 2023 Share Posted October 21, 2023 17 hours ago, hicrop10 said: Have a question for you all.My 79 r model when the key is turned off should the volt meter be reading anything or should it be reading nothing? Yes it should, they are wired this way from new Paul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73449-1979-r-model/#findComment-540760 Share on other sites More sharing options...
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