Load test or what ever have you...

[JWerner2]

Ok Im looking for a way to test power draw to see what the hell is draining my battery/batteries. Anyone?


Also I saw a thread on Scan Tools and now Im wondering if there are any types that I can use to diagnose certain problems that dont give off a check engine light.

 

[NYC LS8]

Pull fuses one at a time and use a digital voltmeter. That's how I found a power draw in my old 87 LSC.

 

[JWerner2]

Ouch, tedious task at hand here,...great!


Thanks dude! Just test the socket the fuse came out of right?

 

[1LoudLS]

i would hook the DMM in series with the batt cable (dont turn anything on or it will overload the meter) and set it to amps, you should not have anything over .25 -.35 amps. then pull every fuse and relay one at a time untill you find the extra current draw

its a little faster than checking at every socket

 

[97stscaddy]

Use a good ammeter. http://www.drillspot.com/products/433970/Fluke-77-4_Digital_Multimeter

 

[NYC LS8]

i would hook the DMM in series with the batt cable (dont turn anything on or it will overload the meter) and set it to amps, you should not have anything over .25 -.35 amps. then pull every fuse and relay one at a time untill you find the extra current draw

its a little faster than checking at every socket

That's how I did it on my LSC. Found it to be a bad intermittent wiper module after unpluging the connector while watching the DVM.

 

[Snowseeker]

Unhook the negative battery cable and run a test light between the cable and battery post. Than just start pulling fuses like said till the light goes out.