Summer brings sunshine, road trips, and—unfortunately—an uptick in car problems. From overheating engines to failing air conditioning, hot weather and heavy travel can push your vehicle’s systems to the limit. Knowing the most common summer car repairs can help you spot trouble early and take steps to avoid costly breakdowns when the temperatures rise.
Overheating Engines
One of the most common summer repairs is fixing an overheating engine. High outside temperatures combined with long drives or stop-and-go traffic put extra strain on your cooling system. Common causes include low coolant, a faulty thermostat, a cracked radiator, or worn-out hoses.
How to avoid it:
Check your coolant level regularly and top it off if needed. Look for leaks, inspect hoses for cracks or bulging, and make sure the radiator fans are kicking on when the engine heats up.
AC System Failures
Few things are worse than a busted air conditioner during a heatwave. AC problems often stem from refrigerant leaks, worn compressors, or clogged cabin air filters. A weak or warm airflow could be a sign your system needs a recharge—or a bigger repair.
How to avoid it:
Have your AC system inspected early in the season. A recharge or minor repair now can prevent bigger issues later. Replace the cabin air filter regularly to keep airflow strong.
Weak or Dead Batteries
Summer heat speeds up chemical wear inside your battery, often leading to failure without warning—especially if it’s more than three years old. High temperatures also increase the load on your electrical system from AC, fans, and infotainment screens.
How to avoid it:
Get your battery tested before a long trip. Clean corrosion from terminals and ensure connections are tight. If the battery is weak or shows signs of swelling or slow cranking, replace it.
Tire Blowouts
Hot pavement and underinflated tires are a dangerous combination. Heat causes the air in your tires to expand, which can lead to overinflation if you’re already topped off—or underinflation if the pressure drops overnight. Both conditions increase the risk of blowouts.
How to avoid it:
Check tire pressure monthly, including the spare. Look for signs of cracking, bulging, or uneven tread wear. Rotate your tires regularly and replace them if the tread is worn down.
Final Thoughts
Summer car problems are common—but they’re also mostly preventable. With a little maintenance and early attention, you can avoid the season’s most frequent repairs and keep your travels trouble-free.