97 Toyota Corolla I've recently had a couple difficulties with the instrument cluster, but I'm not sure whether they're any greater than that. I'll be driving when the speedometer drops to zero and then returns to normal. At times, it will drop to zero and stay there for a long, and the O/D off light will flicker on and off. When this happens, even if the automobile is moving at a constant pace, the engine may rev.
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