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Car Overheating in Phoenix? Causes & Fixes | Revbit Auto

Common causes, quick fixes, and when to call a Phoenix mobile mechanic.

Posted In: Car Tips

Hot Arizona weather is brutal on cars. If your engine temperature keeps climbing in traffic, you’re not alone—overheating is one of the most common summer issues in Phoenix. Here’s what usually causes it and what you can do before calling a mobile mechanic.

Common Reasons Cars Overheat

  • Low coolant or a leak
  • Stuck thermostat
  • Failing water pump
  • Cooling fan not turning on
  • Clogged radiator

Even a small coolant leak or weak radiator cap can make a big difference in desert heat.

What to Check First

Once it’s safe and the car cools down, look for coolant under the car or check the reservoir level. Never open a hot radiator cap—wait until the system cools completely.

If coolant is low, add the correct 50/50 mix of antifreeze and water (check your owner’s manual). If it’s full but still overheating, the problem may be a stuck thermostat or a bad water pump.

When to Call a Mechanic

If your car overheats again after topping up coolant, or you notice steam, grinding noises, or a “Check Engine” light, stop driving and get it checked. Continuing to drive an overheating engine can cause serious damage like a blown head gasket.

REVBIT Auto offers mobile diagnostics and repairs across Phoenix—so you don’t have to risk driving a hot engine to a shop.

How to Prevent Overheating

  • Check coolant levels monthly, especially before long drives
  • Inspect hoses and clamps for cracks or leaks
  • Make sure your radiator fan turns on when the engine warms up
  • Flush and replace coolant every 2–3 years

Routine maintenance goes a long way keeping your car running cool in Phoenix’s extreme heat.

Takeaway

Overheating is common but preventable. Keeping your cooling system in shape saves money and stress when temperatures climb. If your car runs hot or leaks coolant, contact REVBIT Auto for fast mobile service anywhere in Phoenix.