Worn Brake Pads:
One of the most dangerous problems a car can have, brakes naturally wear down over time. That's why it's so important to keep up with their maintenance the trick is to catch the problem long before true failure. Certain factory defects can make this difficult, however, as affected brake pads and rotors wear down much more quickly than expected.
Poor Fuel Economy:
When the engine is running efficiently, it burns fuel at a rate that helps improve fuel economy. However, several fuel system parts like fuel filters, air filters, mass air flow sensors, and O2 sensors will eventually get dirty or wear out. If this happens before they are replaced, it will cause the engine to consume more fuel than usual.
Most car batteries should last about three years or 50,000 miles. A dead battery is usually caused by reduced amps or electrical currents which naturally decrease as the battery loses its ability to maintain a charge. A damaged alternator, battery temperature sensor, or other charging system components can expedite this issue. It's best to replace your car battery every 50,000 miles or three years.
Excessive Oil Consumption:
Your car will need fresh oil to stay functioning. However, if you're finding it's needing changes and top-ups more frequently than it should, there might be a problem. Early signs you need to check your oil include a minor dip in performance and the ever-dreaded oil light on your dashboard. When your car is in a particularly dire need of an oil change, you may even start to see corrosion in its engine. Another oil-related complaint is the clogged oil filter. You'll probably see this problem if you've waited too long to change the oil.
Corrosion is the typical culprit when it comes to radiator leaks. However, the root cause of corrosion can be anything from poor maintenance to factory defects to contaminated fluid. In general, it makes more sense to replace a radiator rather than patch it up. That first leak means corrosion has already set in and that more leaks will follow soon.
Transmission Fluid Leaks:
Your vehicle's transmission requires a special fluid to keep its components well lubricated. In cars with automatic transmissions, transmission fluid also works as a hydraulic fluid and coolant. Over the course of your car's life, small holes can form anywhere in this system, such as in the fluid lines, seals, or gaskets. These tiny tears allow transmission fluid to escape, causing a leak. If the leak is bad enough to lower the overall fluid levels, your transmission will lose efficiency and may eventually fail, whether from overheating or internal pressure loss.
Whether a burnt out bulb or a poor connection, if your headlights, brake lights, or turn signals are out, you've got a safety issue on your hands. While the bulbs themselves are lasting longer than ever, corrosion and poor wiring is still a major concern.