Q: I have a coolant problem

asked by on

Usually every other week ill look at my fluids and stuff. Seems like every 2 months I uave to refill my car with coolant...There are no signs of leaks making spots under my car and the temp gauge on my dash shows that its not overheating. What could be the problem

My car has 88000 miles.
My car has an automatic transmission.

Hey there. You have a small leak that accumulates over time to become apparent. If you have a plastic coolant reservoir, also known as an overflow tank, you’ll want to check that reservoir for cracks or leaks. A quick and easy way to find the small leak, which by the way could be simply be at the water pump housing weep hole, is to pressurize the cooling system to about 15 PSI (mechanics have portable systems to do this via the radiator cap), when the engine is stone cold of course, and then systematically trace all hoses and parts for signs of the leak.

Typically, this strategy will work excepting those cases where the leak only occurs on a hot engine when parts expand at differential rates, thus "opening up" the leak. In that case, it might be necessary to add a small amount of UV leak tracer dye to the coolant which will deposit itself at the leak exit and be picked up by a special light. It is a good idea to track this leak down and repair it so as to avoid future problems or complications. A certified professional from YourMechanic can come to your car’s location to pinpoint the source of the coolant problem so that this can be repaired.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. I have a coolant problem

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: Truck overheated and battery died at same time

Hi There, It sounds like you may have lost your serpentine belt which runs every accessory on the vehicle (water pump, power steering pump, alternator, A/C compressor, etc.). This may explain the simultaneous draining of the battery while the motor...

Q: Car doesn't hold idle, I tried changing the PCV valve, what else could be wrong?

If you have to remove the PCV valve to make the vehicle operate correctly, then there is an issue with the combustion in the engine. The rings to the cylinders are not sealing properly and causing lots of blow by....

Q: Problems with car after buying

Generally, foreign vehicles are expensive to maintain, and especially to fix. No warranty means you will have to front the bill on your own. The air conditioning concern could be a number of things from blown fuses to a...

Related articles

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...
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...
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...