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-   -   thinking i have an electrical draw some where (https://www.dieselbombers.com/1st-generation-dodge-cummins-89-93/73517-thinking-i-have-electrical-draw-some-where.html)

jdbigblue12v 03-31-2011 03:48 PM

thinking i have an electrical draw some where
 
i have a brand new battery i the truck and it works fine if i run the truck everyday for more than 15 minutes, but if i dont start the truck, the battery dies and i cant get it started. i think i have a small draw some where but do not know where to look.

dragrdan 04-01-2011 05:36 PM

make sure everything electrical is off, disconnect a battery lead, connect a test light in between the battery post and the disconnected lead. If it lights up, you have a draw. First place I would look is underhood light, and glovebox light. If they are ok, pull 1 fuse at a time till the test light goes out. Now you know what circuit it is on.

RAW 04-01-2011 06:58 PM

A test light will light up regardless if there is a parisitic drain or not. Sustitute the test light for a multimeter, and measure the amperage. Rule of thumb is 30mA (Milliamps) is max. My '01 has 10mA with just the truck and radio hooked up. More with a brake controller (adds 10mA), and Viper command start (adds 32mA).

2500HeavyDuty 04-01-2011 07:31 PM

yup, use an multimeter, test lights are for cavemen lol

jdbigblue12v 04-02-2011 12:08 PM

thanks i will try doing this later on today when i get a chance and get back to you


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