Summer is brutal on vehicles. Between rising temperatures, hot pavement, and long road trips, your vehicle might start making some strange, unsettling noises. Some sounds are harmless, but others could signal a bigger issue that needs attention before it turns into an expensive repair. In this month’s blog post, we provide a practical guide to decoding those weird summer vehicle noises.
Squeaky or Screeching Brakes
High temperatures make brake components expand, and excessive heat can crystallize brake pads, reducing stopping power.
What It Means: If your brakes squeal only in summer, it’s likely due to heat exposure. However, persistent squealing could indicate worn-out brake pads or contamination, such as dust or debris.
What to Do: If the noise is brief, it’s probably just heat related. If it does not go away, get your brakes checked to avoid safety issues.
Hissing or Sizzling Under the Hood
Extreme temperatures can cause fluids to boil or evaporate quickly.
What It Means: A sizzling noise often signals coolant leaks or overheated fluids touching hot engine components. You might also notice steam or puddles under your vehicle.
What to Do: Stop driving immediately if you suspect overheating. Check coolant levels and hoses for leaks. If the issue persists, visit a repair shop before engine damage occurs.
Clicking or Tapping from the Engine
Oil thins out in high temperatures, reducing lubrication between engine parts.
What It Means: A ticking or clicking noise may indicate low oil levels or oil breaking down due to heat.
What to Do: Check oil levels and quality. If oil looks dirty or thin, change it sooner rather than later to prevent engine wear.
Groaning or Whining Steering
Power steering fluid can break down faster in hot weather.
What It Means: A whining or groaning sound when turning could mean low power steering fluid or a failing pump.
What to Do: Check fluid levels and top off if needed. If the noise continues, get the pump checked before it fails entirely.
Loud AC Compressor Noises
Your AC system works overtime in summer, increasing wear.
What It Means: Grinding, buzzing, or rattling from the AC could mean a failing compressor or clogged refrigerant lines.
What to Do: If the sound is mild, it may be normal operation. If the AC struggles to cool or the noise is getting worse, have it inspected before it fails completely.
Hot weather can push your vehicle’s systems to the limit, leading to unexpected noises that should not be ignored. If you notice persistent or worsening sounds, getting ahead of repairs before they turn into expensive breakdowns can save you time, money, and stress. Worried about strange sounds from your vehicle? Contact the service professionals at Colonial Service Station to schedule an appointment for an inspection and/or service.