Q: Q: My car is overheating

asked by on

I installed a fail proof thermostat a month or two ago on my car. The car does not overheat on trips less than 25 miles, but on longer trips it overheats. The radiator is full and the cooling fan works as well. I noticed that the coolant tank may be leaking; could that be the problem?

I have never heard of a fail proof thermostat. If your coolant tank has a leak then it may be getting low on coolant. A leaking coolant tank that is unable to hold pressure can also cause the temperature to get higher than normal. The coolant needs pressure to help with the anti-boil properties of the cooling system and its fluid.

Replace the coolant tank and the coolant with a 50/50 coolant/water mix. Check to be sure your fail proof thermostat is opening and at the correct temperature also. Make sure the fans are coming on at the correct temperature with and without the A/C on. If you need assistance with this, contact a professional mechanic who will be able to pinpoint and fix your overheating issue.

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. Q: My car is overheating

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: Check engine light flashing, sucking fuel, procrastinating when accelerating...

This is a very odd set of symptoms. I would suggest ruling out any fuel-related issues as the poor fuel economy and lack of power could be related to faulty sensors like the throttle body sensor, mass air flow sensor,...

Q: my power steering fluid in the reservoir has bubbles and i just replaced the pump, does it need to be bleeded

Hello, thank you for writing in. The power steering pump should not need to be bled. When the last pump was changed air was introduced into the system. The air is likely not working itself out. If the bubbling becomes...

Q: someone added oil to brake fluid and hyundai sez entire system needs replaced at cost of $4000; are there any alternatives?

Motor oil damages ONLY the rubber components in the hydraulic brake system. Those rubber components are limited in extent and thus all of the rubber components at issue would fit in the palm of your hand. The problem is the...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...