Q: Car overheats only at low speed

asked by on

The car has close to 200,000 miles on it and an issue with overheating on lower speeds. The operating temperature start climbing towards the red zone after like 20 minutes of running at speeds 25-35 mph. Over this speed range, the temperature remains normal, as well during idling. I haven't noticed any leaks. I had the coolant and oil levels checked and these are at appropriate levels. What could cause this?

Hello. It is possible that the water pump is not pumping properly or that the radiator has a partial clog which is causing the car to overheat at low speeds. Have a certified technician, like one from YourMechanic, complete an inspection in order to pinpoint your overheating problem and make a recommendation as to the necessary repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car overheats only at low speed

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: overheating problem

Thanks for writing in about your Hummer H2. Let's cover the basics of diagnosing a overheating issue. First, verify the actual temperature at the thermostat housing. Cooling system (and cap) has probably been pressure tested by now. If it tends...

Q: No overdrive in my car.

Hi there. Check the 3-4 shift solenoid through the harness to the transmission and see if there is a resistance on it. If there is no resistance on the solenoid, then the solenoid is burned up and needs replaced. Also,...

Q: My check engine light came on and it had code p1151. What could cause that code?

Trouble code P1151 sets if the air/fuel ratio is out of range lean. Vacuum leaks in the intake are a typical cause but if the fault is not found there, there are actually quite a few potential trouble spots including:...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...