Q: check engine light O2 sensor already replaced same codes still popping up after replacing old O2 sensor
I went to AutoZone after seeing a check engine light on and got a diagnostics check on my check engine light it said I have a faulty O2 sensor bank 1 sensor 2 to replace so I replaced it got my codes cleared even reset the codes by disconnecting the battery and drove over a hundred and fifty miles already I still have the check engine light on I went to AutoZone and got another diagnostic check and the same code is popping up still saying I need a new O2 sensor that bank 1 sensor 2 is faulty what should I do what else could be the problem if I have a brand new fitted O2 sensor in there already bank 1 Sensor 2 is the downstream O2 sensor on the Cadillac converter please someone help me what could be the problem
My car has 98000 miles.
My car has an automatic transmission.
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
How do I fold the rear seats?
The rear seats can be folded down to create extra storage space in the cabin or in the trunk. To fold down the rear seats, follow these steps: 1. Unbuckle the rear seatbelts. 2. Fold the front seats into their...
U-joints and tie rods bad.
Since you don't list your symptoms or reasons for thinking this, the best advice I can give you is to have your vehicle inspected by a trained professional. The technicians at YourMechanic will be able to diagnose and repair (https://www.yourmechanic.com/services/75-point-safety-inspection)...
no spark
You'll need to look in the engine compartment's fuse box and check the ENG-1 fuse and all of the other fuses (https://www.yourmechanic.com/services/fuse-replacement) to see if you have any are blown. The crankshaft sensor's pink wire should have ignition switch power...
Gas tank continually cuts off at the gas pump
The fuel level sensor problem (https://www.yourmechanic.com/services/fuel-pressure-sensor-replacement) (prematurely worn contacts) is, unfortunately, a known and chronic problem with this model. Running out of gas in traffic is definitely a safety issue. I believe this repair is essential. A professional mechanic, like...
whistle n squeaking noise from front whistle driving not all time but when I lean in curve towards left side getting worse more so
Hi there. From the description you have provided, it sounds like, a brake pad wear indicator (sensor) may be touching the brake rotor. The wear indicator on the brake pad, is there to let you know, the brake pads are...
Random misfire - 2004 Chevy Express 2500
Hello. Most of the time if you have a multiple cylinder misfire such as this, it is caused by a fuel system problem. If the fuel pressure is low, then this will occur. If the fuel pressure is fine, then...
Battery dies while driving.
The battery is going dead most likely due to the charging system is malfunctioning. You will need a mechanic like one from YourMechanic come and test to see if the alternator needs replaced. The turn signals may flash too fast...
Front end began shaking and engine light flashes.
Hi there. Check the engine oil level on the dipstick. If there is no oil on the dipstick, then the engine began shaking due to lack of lubrication. If the oil is full, then something inside the engine broke causing...
Burning plastic-like smell when braked for more than 10-20 seconds
If the odor is coming from your car (as opposed to perhaps surrounding cars which can happen) and you are only detecting the odor on application of the brakes, a possibility is the brake caliper is failing to retract and...
Related articles
2012 Chevrolet Equinox vs. 2012 GMC Terrain: Which One Should I Buy?
The mid-size crossover SUV category offers the comfort and size of an SUV, but on the platform of a car, giving it the look and feel of a large hatchback. The unibody construction typical of passenger vehicles is used instead...
2012 Toyota Prius vs. 2012 Chevrolet Volt: Which One Should I Buy?
While these two vehicles are both certainly cost-effective to drive, they can be difficult to compare due to the Prius’ entry in the mid-size category and the Volt living squarely in the compact car category. Both of these vehicles are...
The Best Used Cars to Buy If You’re a Wedding Planner
As As a wedding planner, the demands placed on your time are going to be significant, even if you’re only dealing with one or two couples. You need to be a master juggler when it comes to your time and...
Browse other content
Estimates
Services