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Old August 24th, 2011, 12:07 AM
BMGmotors's Avatar
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Baird M. Gehring
1997 D90 ST #1558
Join Date: May 2010
Location: Dallas, Tx.
Posts: 349
tach light

My illumination light on my tachometer works only intermittently, it will usually just stay off unless I hit it or tap it a few times, lately that method has stopped working as well. I recently replaced all the dashboard lightbulbs so I'm sure it is not the bulb. Has anyone else had this issue and how did you fix it? Or is this just one of those Lucas quirks?

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Old August 24th, 2011, 12:01 PM
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Jake K.
95 D90 SW
Join Date: Jan 2010
Location: Deep in the Dirty South
Posts: 325
Do you mean the battery light on the dash? If so then check all 3 wires on the back of the alt. 1 is the main and 1 is the exciter and 1 goes to the tach. Make sure they are tight on both ends of the wires and you can even check for resistance. Good luck.
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