Quote:
Originally Posted by Zacharias
Good question. I tried using the block when I measured mine and got strange readings.
When I asked for advice here, I was told that only reliable ground was the negative cable. By several respondents.
When using a multimeter or test light on other cars I have always used the engine, or something attached to it, as a ground.
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You have to clean the corrosion off the engine ground point first by scraping or sharpen the probe to puncture through the corrosion to make a good ground connection.
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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked
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