12 Typical Reasons Your RPM Goes Up and Down While Parked
RepairSmith
DECEMBER 28, 2023
Here’s how a mechanic would address RPM fluctuation: Perform a visual inspection: They’d check for damaged hoses, broken wires, or any wear and tear in the engine compartment. Check for engine codes: They’ll check for any check engine light diagnostic code that can help determine which parts need cleaning, repairs, or replacements.
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