Q: Q: My car is overheating and coolant is leaking

asked by on

I just replaced valve cover gasket it was leaking oil pretty good and changed waterpump hose, now there is coolant leaking alot on top of the motor, light colored smoke coming out tail pipe,

My car has 142000 miles.
My car has an automatic transmission.

This may suggest a blown head gasket. When this happens, the cylinder head gasket fails which can cause coolant to leak into the combustion chamber causing it to be ignited with the fuel. This is what causes the light colored smoke to come from the exhaust. It is usually a white color when this happens. Additionally, there will often times be oil found in the coolant as well as water found in the oil. I would recommend checking your oil and coolant for signs of this. You may want to have a professional from YourMechanic come to your home to take a look at the vehicle to properly diagnose the coolant leak and white smoke coming out of your exhaust.

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: My car is overheating and coolant is leaking

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 leak and white smoke.

The engine has a blown head gasket and is passing coolant through the engine to the tailpipe. You are seeing the steam coming from the exhaust. The engine being overheated would have to be diagnosed as to why it is...

Q: Fuel injection issue - 2005 Buick LaCrosse

Hi there. Your vehicle has a sequential fuel injection system. When the computer detects a fault, it converts to port fuel injection (bank to bank/limp mode). The most likely cause could be an electrical short in the odd bank of...

Q: How much does it cost to repair my antifreeze leak

Anytime you see a coolant leak under the vehicle you know you have a leak but the location is not known. You will need to have the cooling system pressure tested to see where the leak is coming from. It...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.