Common Automotive Questions Asked By Owners
July 7th, 2009 adminCommon Automotive Questions Asked By Owners
Even though cars have been around for over a century, most drivers are still mystified by what happens under the hood. In their defense, keeping up with the latest technologies is difficult. Automakers are in a perpetual race to design better parts and systems to improve comfort, safety, and reliability. Still, motorists have questions that deserve answers. Below, I’ll address three of the most common automotive questions drivers continue to ask.
#1 – “Do I Need To Let The Engine Warm Up?”
Unless you’re driving an older vehicle that uses a carburetor instead of a fuel injection system, no. It was common long ago to allow your engine to warm up for five to ten minutes before driving. A large part of the reason was due to the choke, which allowed fuel to feed into the carburetor. Today’s vehicles use fuel injectors to balance the air-fuel mixture used by your engine. No warm-up required.
#2 – “Why Are My Brakes Squealing?”
There are a couple of factors that can cause your brakes to squeal. First, the noise might be caused by a vibration occurring between the pads, which normally squeeze against the rotor. This type of vibration is usually due to a poor fit on the calipers. The squealing might also be caused by the surface of the brake pads rubbing against the metal of the rotor. This happens when the surface of the pads harden due to the heat created by friction.
Unless your car is equipped with high-performance brakes (which squeal naturally), have the pads replaced if you hear persistent squealing. If you wait too long, the rotor might become damaged, which is more expensive to service.
#3 – “Will My Battery Lose Its Charge?”
Over time, yes. However, a healthy car battery should last for years. Your vehicle has a charging system that allows the battery to keep its charge while providing the current needed to power the engine. When you turn your key in the ignition, your battery discharges a large current in order to power the starter motor. After it does so, its job is effectively finished. The alternator makes sure that your battery has enough “juice” or amperage for the next time you turn the key.
Having said that, it is possible for your battery to lose its charge. For example, leaving a door ajar overnight will cause a drain.
One of the reasons we take our cars to a mechanic is because they have grown in complexity over the years. Not only are problems more difficult to identify, but fixing them can be labor intensive without the proper tools. However, many of the smaller maintenance and repair items that mechanics handle (for example, replacing a battery or a set of brake pads) can be performed at home. While your vehicle may be a complex piece of machinery, it is only as mysterious as you allow it to be.
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Tags: Car Questions, Cars
