The freeze plug failed and coolant mixed with oil. The te...

Q: The freeze plug failed and coolant mixed with oil. The tech says because it would be impossible to clean out all the gunk, I need

asked by on October 24, 2017

The freeze plug failed and coolant mixed with oil. The tech says because it would be impossible to clean out all the gunk, I need a new engine. Is this really the case?

My car has 61000 miles.
My car has an automatic transmission.

If the engine was run with coolant mixing with the oil it can damage the internal engine bearings and pistons. If it is severe enough the engine would need to be replaced or the entire engine rebuilt and all parts boiled out to remove all mixed fluids.

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

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

How do I read the odometer?

The odometer is located on your instrument panel, between the speedometer and tachometer. The odometer tells you how many miles the vehicle has been driven in its life. You cannot reset the odometer.

I accidentally added 1 quart of Motor Oil into my transmission fluid what would happen?

If after you did this, you did NOT run the engine (thus operating the torque converter and oil pump in the transmission), nothing untoward will happen. The solution is to immediately remove the transmission oil pan, let everything thoroughly drain...

What does the multi-information display do?

The multi-information display is an optional piece of equipment available with some trim levels on the Honda Civic. If your car has one, consider it an expanded and enhanced version of the standard information display. It’s located above the steering...

Related articles

What Does the Coolant Temperature Warning Light Mean?
The coolant temperature warning light turns on when your engine is sensed to be too hot and is at risk of damage from overheating.
A Buyer’s Guide to the 2012 BMW Z4
BMW’s BMW’s entry in the hardtop roadster segment, the Z4 delivers the ideal combination of performance, looks, and standard comfort features. This two seater is not only classically stylish and heavy on extras that aren’t, well, extra, it’s also the...
2012 Chevrolet Traverse vs. 2012 Toyota Highlander: Which One Should I Buy?
Large SUVs are a huge and broad market, with a range of different offerings from economy to luxurious. The majority of the SUVs and crossover SUVs offer decent gas mileage, plenty of room for friends and family to ride along...