Was doing an AC ripple test on a 2002 Chev Avalanche, 5.3. Why do I get different ripple readouts when moving lead from + or - lead...Example, while hooked up from post on Alternator to + lead on battery, was reading a 450mV ripple (yes, it was that high), then went to the - terminal on battery, and it dropped to just 135mV. I'm sure there's an answer in the power user test portion, but was unable to find it. Any help? Having a blonde moment right now
Alternator Ripple testing
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Was doing an AC ripple test on a 2002 Chev Avalanche, 5.3. Why do I get different ripple readouts when moving lead from + or - lead...Example, while hooked up from post on Alternator to + lead on battery, was reading a 450mV ripple (yes, it was that high), then went to the - terminal on battery, and it dropped to just 135mV. I'm sure there's an answer in the power user test portion, but was unable to find it. Any help? Having a blonde moment right nowYou can expect the reputation of your business to be no better than the cheapest item or service you are willing to sell. - Wheel -
I did have red lead on alternator post for both tests...1st test was + lead battery to alt post (450mV), 2nd test - lead battery to alt post (135mV). I've seen a split in mV, nothing this big though."If you aim for nothing, you'll hit it every time!"
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