Skip the auto shop - Our mechanics make house calls

Q: Changing coolant on a car

asked by on

How can I get leaks from changing coolant? I've heard some stories about it.

There is always a bottom radiator hose. Take the bottom radiator hose off because the coolant has to come in one part and go out another. It’s all going to float on the bottom anyways. If the bottom is a little bit higher, you can just take off the top and the bottom of the radiator hose and then get a bicycle pump or any kind of air pump to pump the air on the top radiator where you took the hose off. This will push everything from the bottom of the radiator so you can easily drain it that way. I’ve done that once and if they’ve stuck the part way up, you’d want to drain the whole radiator. If you need help flushing the radiator or changing the coolant, a certified technician from YourMechanic can come to your home or office to service your car.

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: Car is overheating, usually when it's hot and the engine idles.

You most likely have a transmission cooler that is leaking into the coolant inside the radiator. The transmission cooler is built inside the side tank of the radiator, and if it blew out, then you will have transmission fluid getting...

Q: I want to replace the upper and lower hoses and thermostat

Hello. If the coolant is leaking then that needs to be found and repaired first. If it is from under the reservoir, then it may be the reservoir or it may be one of the hoses. Most of the time...

Q: I drove without coolant for about 20 miles and the radiator fan is making a loud noise, how do I fix it?

There could be problems with your water pump, coolant lines, radiator overflow reservoir or the radiator that is causing a serious leak. Driving without coolant for any period of time can cause damage to your radiator or other cooling system...

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...
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...