Skip the auto shop - Our mechanics make house calls

Q: Car overheats / drains after a recent replacement of the coolant reservoir.

asked by on

had the coolant reservoir replaced in mar/2016. was told it was cracked. car sat overnite after repairs, as we were out of town. drove to los angeles but 'coolant level low' light came 25mins into the drive. pulled over, checked the levels made sure car was cool ( couple hours) and drove home. car ran fine as long as a/c wasn't on until july/august 2016. at the moment car is parked in parking space because battery needs to be charged. (lights were on)

My car has 109000 miles.
My car has an automatic transmission.

Hi there. The coolant level sensor could have failed. Also, if the reservoir was low, then after running the engine for a while on the road, the coolant could have bypassed into the reservoir making the coolant level low causing the coolant low light to come on. Check the coolant levels in the radiator and the reservoir for that they are full. Charge up the battery or replace it with a full charged battery before driving the vehicle. If you need further assistance with the low coolant light coming on, then seek out a professional, such as one from Your Mechanic, to help you.

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

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. Car overheats / drains after a recent replacement of the coolant reservoir.

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: overheating and engine is shaking.

The condition that is causing the electric fans to come on selectively would be caused by the coolant sensor / switch. The sensor / switch is loosing contact connections causing the connections to the fans to cut off making the...

Q: Car over heated shut down on me ... Now it leaks the coolant and cranks as it wants to but doesnt ?

Hi There, It sounds like your car is shutting down or going into a "safe mode" as a result of the motor overheating. The computer is designed to shut the car down like this in the event that it detects...

Q: Coolant light is on

The coolant temperature sensor may have a malfunction or your engine computer needs to be reprogrammed. The problem may occur when going through temperature extremes. The computer can sometimes read a rapid change of temperature which will turn on the...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...