Q: antifeeze to come out of the O2 sensor

asked by on December 18, 2016

I'm getting heat in my car but it's not getting hot. It looks like antifreeze is coming out of the oxygen sensor. My oil looks good. No antifreeze is coming out of my tailpipe. What is the problem and what can I do to fix it

My car has 123 miles.
My car has a manual transmission.

Coolant is leaking Inspection $79.99 - $89.99 Get a Quote

Hello, thank you for writing in. When coolant leaks into the engine from a blown head gasket, cracked head, crank case, intake manifold, or simply dripping down the engine. If there is actual coolant dripping from the O2 sensor, and none coming from the tail pipe, then you can assume your catalytic converter is likely going to fail soon. It is absorbing the extra coolant and is going to fail soon. This can be a serious issue, and you need to make sure if the vehicle must be driven that it has coolant or water in the cooling system. In winter months, do not keep water in the engine. You must find the source of the coolant leak.

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

What others are asking

I have a 2004 Chrysler Pacifica 3.5L V6 FWD, and I have 3 bad motor mounts.

Hi there. If any of your motor/transmission mounts are bad - and you indicate that 3 of them are - I would recommend you replace them all at once. The reasoning is that any broken mount allows the engine/transmission to...

I have a 2004 Land Cruiser that is showing the following problems: (1) for the past several months, when I go to start it, it will

If the starter is not releasing from the flywheel, when you let go of the key, the starter likely has an internal fault. It is also possible that the circuit is not opening, as commanded, when you release the key....

AC belt makes squealing noise

The belt on your 2000 Plymouth Voyager is used by the engine to turn the A/C pulley along with the water pump, power steering pump, and other accessories. Any one of these items could be the cause of the belt...

Problem with shifting positions

It may very well be that your vehicle has a problem that is causing reduced power output. Some such things could be: Faulty fuel pump Faulty oxygen sensor Vacuum leak When any of these occur, the...

Blown fs/asd fuse shuts down while driving

Hi there, thanks for writing in. Unfortunately, this is an issue that is still somewhat unresolved to the car community. I would recommend taking the car to the Dodge Chrysler dealer to interpret these codes, as these are not readily...

Brakes spongy after booster and master cylinder replacement

Hello. You need to double check the installation since you may have put the brake booster rod on the brake pedal wrong causing binding of the brake switch and causing the system to not bleed correctly. Also make sure the...

Starter clicking sound 1994 Chevrolet C1500

In most cases, a clicking sound coming from the starter is due to either the starter motor being damaged or the starter relay to the starter motor being damaged. This would support your suggestion that the starter is not getting...

Makes a clicking sound

A clicking or ticking sound can be coming from lots of components. Lack of engine oil, low oil level, or poor oil pressure can cause the engine to make a loud clicking or ticking sound. If it were the engine...

What repairs fix codes P0172 and P0304? I just had all the spark plugs replaced recently.

The P0304 code indicates a misfire has been detected on cylinder 4. The P0172 code indicates that the fuel mixture is richer than the mixture control can compensate for. It's possible that they are related, but not necessarily. Rich mixture...

Related articles

The Best Used Cars to Buy If You Get Motion Sickness
For For people that suffer from motion sickness, even on the shortest car trip, riding in a vehicle can prove to be unbearable. What’s great is that there are a number of cars on the market that can help to...
What Is the Difference Between a Water-Cooled Engine and an Air-Cooled Engine?
There There are a few main differences between a water-cooled and air-cooled engine. Air-cooled engines utilize an engine cylinder design that incorporates cooling fins all the way around the cylinder and on top of the piston cylinder head. These fins...
How Does a Radiator Keep an Engine Cool?
Car radiators cool off your engine and prevent your engine from overheating. Coolant absorbs engine heat and dissipates it through the radiator.