Skip the auto shop - Our mechanics make house calls

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.

A: Hey there. You have a small leak that accum...

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 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: should i have transmission fluid changed

Hello. I can understand your concerns with servicing the transmission at this point. Since the transmission has never been serviced you do run the risk of causing some issues to start prematurely. With that being said, you should have it...

Q: I got my heads shaved but come to find out my radiator cracked will that put water in the oil

The radiator coolant can only get into the engine oil through one of the coolant passages in the cylinder block or cylinder head or gasket. Your radiator cannot get coolant in the oil. You most likely have a cracked cylinder...

Q: Vehicle hard to start

The carburetor on your van may have gotten sediment from the fuel system into it, which causes the jets to get clogged. I recommend having the fuel pump checked to see if it is working properly and sending the right...

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...
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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...