You left a few words out of your sentence, so if you are disconnecting the battery, then yes. Placing the test lamp in a series with the disconnected battery cables is just as sensitive. The battery cable just runs some distance and makes a negative connection to the engine or chassis, both in actuality. I did not go there on the tractor details but I DID consider the fact that that tractor may actually have a ECM. I was going to wait for his results. Adding computers or ECMs and BCMs (body) complicates this test a bit. In fact I have been away from professional auto repair long enough that I would outright tell you that I probably cannot give you the proper instructions to what I call draw or drain check a car like that Subaru. When a computer is disconnected and it is reconnected there will be a couple seconds of a higher power draw until the memory section repowers at which time the draw will drop to an acceptable level.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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