Q: Q: Engine coolant disappearing

asked by on

I had transmission work done three months back and now the coolant seems to be disappearing into thin air, no signs of leakage but the reservoir gets empty every few days. Could it be related to the transmission work? If it is I could go back to the dealer cause it's still under warranty.

My car has 162000 miles.
My car has an automatic transmission.

If the engine has a coolant leak that is not external to the engine or cooling system would not have anything to do with the transmission repairs. You need to have the engine head gaskets and intake manifold checked for leaks internally to the gaskets and seals. You need to have the spark plugs removed and system pressure tested to see where the coolant it going. I suspect the head gasket is leaking into one of the cylinders or the intake coolant passage is leaking into the intake.

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. Q: Engine coolant disappearing

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 level dropping after a short time

A cooling system that keeps getting low on coolant in a short amount of time has an active leak in the system. If the leak cannot be found externally then the leak will be internal to the engine. You will...

Q: What could be wrong with my engine?

The sound may be due to a vacuum leak and that would include the PCV and EGR systems. There are other possibilities but initially the latter possibilities would be considered first. To get this problem investigated and resolved, your best...

Q: The temperature gauge is fluctuating but not over heating, I have changed the thermostat, the sender, and it still dose the same

Hello, thank you for writing in. The vehicle's cooling system may be having more of a technical error. With the sensor and thermostat both giving correct measurements, the issue is an actual temperature fluctuation. This can also be caused by...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...