Locating and Repairing Exhaust Leaks That Whistle During Cold Starts
Automotive diagnostics often feel like detective work, especially when dealing with intermittent noises that vanish as the vehicle reaches operating temperature. A high-pitched whistle or a sharp "chirp" that only occurs when the engine is stone-cold is a classic symptom of a small exhaust leak, typically located at the exhaust manifold or the primary gasket. The reason this noise is temporary...
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