Q: Can a cracked fuel line/pipe cause an o2 sensor to go bad?

asked by on

Hi can a cracked fuel line/pipe cause an o2 sensor to go bad? I just took my car to the shop (again) bc the there was smoke from the engine when stopped. The dealership told me that it was a cracked fuel pipe and a bad o2 sensor. I think the two issues are related, but I am not a mechanic so I don't know for sure. Please help bc I am spending $320 to have the sensor fixed which I know is not an expensive part but I need it fixed now. They are covering the fuel pipe bc it must be under their warranty as I've only driven 9000 miles since their "fixed fuel pipe".

My car has 98500 miles.
My car has an automatic transmission.

Hello, thank you for writing in. The fuel line being cracked is going to cause issues with the way the engine runs, and a lean or rich air/fuel mix will cause the oxygen sensors to detect the difference in carbons in the exhaust fumes. These two issues are likely related. The sensor may not be bad, but there is no way to tell without further testing, which the shop may have already done. However, replacing the O2 sensors is rather easy, and that charge does seem rather steep, especially if the sensor will ready normal once the fuel issue is resolved. You may want a second opinion. For more help from our technicians, contact our service department to schedule an appointment.

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. Can a cracked fuel line/pipe cause an o2 sensor to go bad?

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 starts in On position

The most likely cause of this issue is a faulty ignition switch or lock cylinder. One of the tumblers may have fallen out of place causing a connection to the starter when there should not be. My best recommendation would...

Q: Car stalling intermittently

The fuel pump stands out as the most common failure but the fuel pump relay may also be the problem. Some of the other possible causes may be the crankshaft sensor and camshaft sensor. These sensors can cause very similar...

Q: Malfunction indicator (MIL) keep blinking

The check engine light is blinking most likely due to the engine is misfiring and the computer is warning you the engine catalytic converter may get damaged if you continue to drive it with the problem. You may have excessive...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...