Speedometer symptoms and diagnosing
04-15-2013, 09:53 AM
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Speedometer symptoms and diagnosing I just got my freshly rebuilt transmission back in my car and went for a few test spins yesterday. I was worried about the transmission because it wouldn't shift to third. Then I realized the speedometer wasn't working. I know the pcm need mph input to know when to shift. Could this be why I can't get the transmission to shift to third? Also, where should I start on diagnosing the speedometer?
