Engine Whistle

Car Engine Makes Whistling Noises

Engine Whistle While Driving

Helpful Information
Some whistling noises are simple to fix, while others are a little more difficult to find and can be aligned with the engine speed.

Easy step by step guide on how to fix an automotive engine whistle, this information is displayed in order of probability and pertains to most vehicles.
Difficulty Level - 3
Start with the vehicle parked on level ground, engine off and the emergency brake set, using a basic set of tools wearing safety gloves and eye-wear protection.
Step 1 - When a vacuum hose or tube fails it can make a whistling noise which could vary with engine speed. 

Engine Vacuum Leak
Step 2 - If a battery connection becomes corroded or if the battery is starting to fail, it can cause the alternator to overwork which creates a whistling, whining style of noise. 

Battery Corrosion
NON ENGINE PROBLEM - When a door seal fails it can create a whistling noise as air enters the passenger compartment, these whistling noises can be difficult to find. If needed have a passenger ride along while running their hands along the area the noise is being generated from, this will pinpoint the location.
Door Seal

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