6 Unusual Car Noises You Should Never Ignore

Cars communicate their needs through subtle (or not-so-subtle) cues. One of the most important ways our cars tell us something’s wrong is through sound. While the occasional rattle or squeak might seem insignificant, some noises should serve as blaring alarms urging us to pull over and investigate. Here are 6 common car noises you shouldn’t ignore and what they mean: 

1. Grinding, squeaking, or squealing brakes

If you hear a grinding, squeaking, or squealing noise when you apply the brakes, it’s a clear sign that your brake pads or discs need attention. These sounds typically indicate that the brake pads have worn down and are now rubbing directly against the rotors. Ignoring this can lead to more severe damage, not only making your vehicle unsafe but also significantly increasing repair costs.

2. Hissing under the hood

A hissing sound coming from under the bonnet (hood) when the engine is running could be a sign of a leak in the cooling system or an issue with the vacuum line. Such leaks can lead to overheating and potentially severe engine damage if not addressed promptly. It’s advisable to check for any visible signs of leaks and consult a mechanic as soon as possible.

3. Knocking from the engine bay

A knocking sound from the engine bay, especially when accelerating, can indicate several issues, including problems with the engine’s combustion process. This could be due to using the wrong type of fuel, issues with the ignition system, or a need for engine repair. Ignoring this sound can lead to significant engine damage.

4. Whining from under the car

Whining sounds from under the car can be associated with the transmission or the power steering system. In manual transmissions, this could indicate a problem with the clutch or gears, while in automatic transmissions, it might suggest issues with the torque converter. For power steering systems, a whining noise might indicate low power steering fluid levels or a failing pump. It’s essential to address these issues quickly to avoid further damage.

5. Rumbling or roaring exhaust noises

A louder than usual exhaust sound, such as rumbling or roaring, can indicate a hole or leak in the exhaust system. This is more than just a noise issue; it can lead to decreased performance and fuel efficiency, and potentially dangerous exhaust fumes entering the vehicle’s cabin. Getting this checked and repaired is crucial for your safety and vehicle performance.

6. Squealing under the hood

A squealing noise under the hood, particularly on starting the car, often points to belt issues. The serpentine belt, responsible for driving multiple peripheral devices in your engine, such as the alternator and air conditioning compressor, may be worn or loose. A failing belt can lead to a breakdown or failure of these components, so it’s advisable to get this checked promptly.

Is Your Car Making Strange Noises?

Ignoring unusual sounds from your car is not worth the risk to your safety or your wallet. If you ever find yourself unsure about a noise your car is making, consult a Ford-Certified Technician at Corwin Ford Reno. 

Corwin Ford Reno technicians are highly trained and certified to perform whatever work you may need on your vehicle including: 

• General Automotive Repair

• Preventative Car Maintenance

• Air Conditioning and Heater Service

• Cooling System and Radiator Repair

• Synthetic Motor Oil Replacement

• Oil Filter Replacement

• Brake Repair

• Engine Diagnostic

• Tune-Up

• Belts, Hoses, Fluids

• Air Filters

• Alternators

• Batteries

• Headlights

• Starters

• Transmission Services

• Struts

• All Fluid Level Checks & Corrections

Call us to schedule a service today. We serve customers in and around Reno, Carson City, Sparks, the North Valley, Spanish Springs, Verdi, Virginia City, the Carson Valley, and Northern Nevada.