Q: I have transmission fluid in my coolant - did water get in my transmission?

asked by on

I notice I transmission fluid and my coolant system

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

I must say, this is the first time I have heard of this. However, I understand your problem and can help you fix it. Your radiator has transmission oil cooler lines. I am going to be honest I don’t think anyone made a mistake with connecting the wrong lines to the wrong place because the lines usually won’t connect to the wrong part. So, my suggestion is probably going to be to have your radiator replaced since the radiator is the only spot where transmission fluid could be mixed. You could do a pressure test with your radiator to ensure you don’t have something replaced that doesn’t need to be replaced. You can rent or purchase the pressure tester at your local parts store. If you would like to have one of our professional technicians replace your radiator it is not safe to continue driving your car at this time with your current problem. You will also need to have a coolant flush.

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. I have transmission fluid in my coolant - did water get in my transmission?

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 jumps into second gear

Hello. It very well can be that solenoid, but that is not too common. Many times this is caused by bad engine or transmission mounts. If they fail, the engine and transmission can move and cause this jump. Since the...

Q: Car turns over but shuts off after I release key

Hey there. This type of problem may need a little deeper and up close diagnostic to find the solution. If you saw smoke, there was something burning so there may be components along that circuit that may have failed. If...

Q: car not sounding and running properly

Most likely the loss of power after your oil change is just a coincidence. It is possible they checked your air filter and disconnected a sensor on accident. If this is the case, there should be a Check Engine Light...

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.