Q: My car continuously overheats and blows the radiator cap

asked by on

I have changed the thermostat, the water pump, the fan clutch and flushed the radiator but it's still overheating. What could be the issue?

My car has 150000 miles.
My car has an automatic transmission.

It sounds like you may have a restriction in your cooling system that is preventing the proper flow of coolant through the engine.

I would recommend having the system power flushed to remove any restrictions that may exist. The restriction is likely in the coolant passages inside the engine if the radiator and water pump have already been replaced.

If the power flush does not resolve the issue, it is possible that the engine may require an overhaul from a qualified professional in order to resolve this issue.

I would suggest having this overheating issued diagnosed by a certified technician, such as one from YourMechanic, for an accurate repair.

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. My car continuously overheats and blows the radiator cap

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: When i have my car running with my heat or ac on my car hesitates like it wants to stop when i'm stopped at a light.

As you may know, your car's AC system when working properly puts an extra load on the engine at all times when it is running. When this happens, your car's computer makes adjustments to compensate for this extra load on...

Q: Fuel line pressure relief.

The fuel pressure can be relieved by disconnecting the fuel relay or inertia switch and letting engine run until it dies. Then try to crank the engine several times to make sure it is no able to start. Then you...

Q: I have a 2003 Nissan Altima 2.5L 4 cylinder. I replaced the fuel pump, the engine coils, and the crankshaft sensor but the car sti

It is possible that there could be an issue with the timing on your vehicle. I would look into the timing belt maintenance to determine when the last time the timing belt was replaced. If the timing belt has skipped...

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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.