Common Car Issues from Extreme Heat

As the mercury rises, so do the number of roadside assistance calls—especially during peak travel seasons. If you're planning a summer road trip or just commuting through the heat, it's important to understand how extreme temperatures can affect your car and what steps you can take to keep it running smoothly.

Car Battery

Your car battery contains a mix of water, acid, and lead plates that can be affected by high temperatures. When it gets too hot, the water inside can evaporate, leaving the lead plates exposed and prone to corrosion. This weakens the battery’s ability to hold a charge, which could leave you stranded when you need your car most.

Batteries can get as hot as 140°F in the summer, far above their ideal operating temperature of 80°F. Every 15-degree increase above that can cut the battery’s lifespan in half. Plus, using your air conditioner puts extra strain on the battery, especially during long drives. To stay safe, park in the shade whenever possible, drive regularly to keep the alternator working, and check for clean, tight connections.

Tires

High temperatures can cause tire pressure to rise—about 1 psi for every 10 degrees Fahrenheit. If you don’t monitor this, you risk overinflation, which increases the chance of a blowout. Heat also causes uneven wear on the treads, especially along the center, and can even deform the shape of the tire, leading to cracks and reduced performance.

Engine Oil

Extreme heat can cause engine oil to thicken and partially evaporate. This reduces its effectiveness in lubricating and cooling the engine, increasing the risk of damage. If you’re planning a long summer drive, consider having your oil checked, flushed, and replaced to ensure optimal engine performance.

Cooling System

When you turn on the AC on a hot day, your cooling system works harder than usual. The radiator, hoses, and water pump all face increased stress, raising the risk of failure. If coolant levels drop or a part breaks down, your engine could overheat, leading to costly repairs.

Fuel System

Heat can cause gasoline or ethanol in your tank to evaporate, altering the air-fuel mixture. This can lead to lower fuel efficiency and even premature ignition, which can damage your spark plugs and, over time, your engine components like the pistons and rings.

Belts and Hoses

High temperatures can accelerate wear on your car’s belts and hoses. They may crack, bulge, or become brittle, leading to leaks or system failures. Regular inspections are key to catching these issues before they cause major problems.

Summer heat can be tough on your car, but with a little care and maintenance, you can avoid many of the common issues. Whether it's checking your battery, inspecting your tires, or getting your fluids flushed, staying proactive is the best way to keep your vehicle running smoothly all season long.

If you're concerned about your car's performance in the heat, reach out to DaSilva’s Auto Body for a thorough inspection and professional repairs. Contact our Naugatuck location today to schedule an appointment and keep your car ready for the summer ahead.

Cooling Evaporator

Cooling Evaporator

Cooling Evaporator

Xinxiang Yukun Refrigeration Technology Co.Ltd , https://www.yukunevaporator.com