Skip the auto shop - Our mechanics make house calls

Q: O2 sensor not coming off

asked by on

The oxygen sensor on my car won't come off.

A: I will assume you are trying to remove the ...

I will assume you are trying to remove the sensor yourself. The location of the oxygen sensor beneath the car allows rust to take over much of the exposed metal binding some parts together. It becomes very difficult to remove fasteners. Have an experienced technician, such as one from YourMechanic, expose the exhaust pipe to a high heat source like a torch. The exhaust pipe metal will expand and allow some movement from the fastener. If this method fails, the exhaust section may have to be replaced.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: rear window not going down, problem with wires

The way the power window regulators work is they have positive voltage when the up window switch is pressed and they will have negative voltage when the down switch is pressed. The most likely cause of the power window fault...

Q: Trouble code P0133 - 2002 Dodge Durango

Do you know if there are any exhaust leaks before the sensor? This code trips when the O2 sensor is not switching back an forth between rich and lean as fast as the computer is setting the conditions. This can...

Q: Wont start what is the firing order

The firing order on your car is 1-3-4-2. Cylinder one should be the cylinder closest to the accessory belts. From there the order of the cylinders is 2, 3, and 4. If you need help, feel free to contact a...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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.