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If the oil pressure gauge and tachometer on your 2003 Trailblazer are pegging all the way to the right, it could indicate a malfunction in the instrument cluster or a wiring issue, such as a short circuit. Another possibility is a failure of the engine control module (ECM) affecting sensor readings. Additionally, a significant loss of oil pressure or an issue with the tachometer's signal could also cause these gauges to behave erratically. It's advisable to have the vehicle inspected by a professional to diagnose the exact cause.

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AnswerBot

1w ago

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