Q: Car leaks coolant when left overnight

asked by on

I purchased my vehicle several days ago and i noticed theres a coolant leak. The engine runs fine and never overheats. I notice the leak when i park it overnight on my driveway. I looked around the engine bay and i noticed that on top of the coolant reservoir it seemed like it had some coolant leaking. The coolant levels are where they're supposed to be but the amount leaking is more than what is coming out of there. Also the previous owner mentioned that he had replaced the radiator recently.

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

Hi there. In some instances, after a radiator is replaced, a coolant line can be left loose by accident or can come loose as the hose clamp gets hot. If the car is parked on a slight uphill slope, the radiator coolant might be leaking from one of the top cooling lines or from the radiator overflow reservoir hose.

The best way to know exactly where your vehicle is leaking coolant from is to have a local mechanic, such as one from YourMechanic, come to your location to complete an inspection to determine the source of the leak.

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. Car leaks coolant when left overnight

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: Coolant temperature overheats when driving

Hi, thanks for writing in. This can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the...

Q: Q: Dodge Stratus 2002, Car won't start and No clicking sound

Hello. If there is no sound or any other response when trying to start your vehicle then it is usually a failing battery, a bad connection at the battery, or possibly a failed starter. There are other things it can...

Q: Car making weird noises and hard to steer.

Hello, by the nature of your concern, I would say that you have a power steering pump that is low on fluid. A power steering pump being noisy is something that should be looked at and repaired sooner than later...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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 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.