Thread: What is this?
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Old 04-24-2003, 11:08 PM
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ILUVMILS ILUVMILS is offline
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Join Date: Sep 2002
Location: New Jersey, U.S.A.
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If you're talking about your '83 SD, I beg to differ with xp190. There is no diagnostic hook-up on your car car. The part in question is the "tach amp". If you remove it, the tachometer won't work. If the tachometer doesn't work, that part is a common cause for this problem.
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