Skip the auto shop - Our mechanics make house calls

Q: Car overheats in slow traffic or going uphill

asked by on

I've replaced ECT ,fan switch , fans , thermostat. What could it possibly be? I was told head gasket but I don't want to put that much money for nothing. Although I do have an oil leak

My car has 148000 miles.
My car has an automatic transmission.

You did not mention if you are losing coolant or there is a leak in the cooling system. You may have a leaking head gasket and would need to have the cooling system pressure tested to see if the head gasket is leaking or you need a water pump from low flow in the cooling system from worn out fins on the water pump. The pump may be needed if no head gasket leaks are found during testing.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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: Vibration inside car

Hello! There are many things that can cause vehicle vibration. Tires and suspension can cause vibration while driving and a misfire or engine mounts can cause a vibration while the vehicle is idling. A qualified technician, such as one of...

Q: Check engine code P0420 and P0420p consistently come up even after erased. Slight smell of fuel when car is stationary.

Diagnostic trouble code p0420 is for a catalyst efficiency below threshold. Meaning, the control module is receiving a signal that the oxygen sensor is reading a post converter signal that the catalytic converter isn't doing its job. This could be...

Q: Diagnostic brought up three codes

Hi there. The codes that you are getting indicate a couple of different issues. The P0700 and P0720 codes indicate a transmission problem. These indicate a failure in the transmission output speed sensor. I have seen more wiring issues than...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...