O2 Sensor Problems of Ford Focus

The engine light came on stating that it is a O2 sensor issue. I've replaced the O2 sensor several times. I've had mechanics and the dealership look at it with no ability to figure out what it is. It is believed to be electrical, most likely the wire harness. My alternator was affected as well by this electrical issue. I have had to put in a few new O2 sensors, two new alternators, and a battery.

See all problems of the 2014 Ford Focus 🔎.

While sitting still my gas hand went from 1/2 a tank of gas to the full mark. Filled it up even though the gas hand was on full mark. It took $20 to fill it up and for it to kick off. Then when I started to start my car I hand to turn the key twice to get the motor started and then after I took my hand off the key it kept on cranking as if trying to start although it was already running. I drove it to lexington and could feel it revving the motor up without me doing anything. I turned around and drove back to frankfort and took it to big o's. They put a handheld tester on it and said it was either the oxygen sensor or converter for the engine light that was on. I informed them that I had replaced the O2 sensor just 3 weeks ago. He test drove it and said it revved up on him also which he said something was going wrong in the transmission. When I left from there the lights came on by themselves, the check engine light was on, and the gas hand was still past the full mark. On 9/7/2018 although it said the tank was full my fuel light came on. It also quit on me on 9/7/2018 going down a hill and I had to pull over for a while before it would start back up so I could get home. There was a recall on the tcm valve which has been replaced twice and the clutches in the transmission which has been replaced twice.

See all problems of the 2012 Ford Focus 🔎.

As I was driving the car, at low rpm's the car would stutter and stall. It is more pronounced with the air conditioning on. Took it to the dealer and could find nothing wrong with it, I was told this is common. On my way home from the dealer the car stalled leaving a green traffic light and I was almost hit in the rear end. The car finally lite a check engine light 3 weeks later. Dealer changed an O2 sensor and 4 days later in July car went into "limp mode" in first gear as I was leaving a restuarant. The car hesitated and stalled in traffic, I was almost hit in the rear of the car again. The dealer claims that the an actuator controlling the radiator vents is bad, but this should no have caused the car to go into limp mode. Ford has a TSB for a wiring harness problem, the number is TSB 13-9-7 that explains the issues of stuttering and stalling, but unless 2 codes are read on the computer they refuse to fix it. The problem is well documented on Fordfocusst. Org website. Hundreds, if not thousands of cars have the same issue. I believe that one day someone, if not many people, will be seriously hurt due to this issue.

See all problems of the 2013 Ford Focus 🔎.

So idk every [xxx] year! for the last few years! it goes good then she starts acting funny boom battery light comes on. I use the voltmeter and everything's fine full charge same with the alternator. A week or so passed then the starter went out replaced 7/3/13!! wtf! fried put a new one in. Now my[xxx] clutch feels different don't know what it's not slipping but it's really smooth. 2 days go by and boom acts like the battery is dead. . Nope take key out get voltmeter it's at 12. 5 so I try again seems ok doesn't turn over. Again turn key all lights on seems ok nothing. . . . Ok 1 more turn key struggles like starter then lights flicker dash wacks out boom dead nothing!!!!! get out still 12. 5volts. I don't know try 1 more time I pumped the clutch ad it hesitated to turn over and boom it works!!!! get home. Turn it off all is well acts like nothing is wrong! 4 to 6 days again this time it did it 2 him just different. Here's the kicker!!!!! it's fine fully charged all lights ok all volts ok he pulls out ( ha ha pulls out!) then she idles irregularly like a loop higher loop get it home and keeps looping. So I remember this from like 5 yrs ago it was something with the maf or ecg I believe so I look for answers. . . . Now he goes out 4 hrs later nothing dead won't turn over won't do nothing!!!!! I hate this car!!!!! I swear I will find the [xxx] problem to this [xxx]!!!!! I can't believe this [xxx] car! she was so good now she's a lil [xxx]! I know it's something stupid as [xxx] and watch just like last year in August the [xxx[ clutch is going to go out again! I loved this car but from reading constantly I've decided this is a serious Ford issue!!!! I have spent thousands on this! if I didn't have lifetime warranties on the alternator etc I could only imagine the cost!! through all this horror I've also had to replace O2 sensors maf sensor all engine mounts 3 times!!! information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2005 Ford Focus 🔎.

I have only owned this car for four months. First the oxygen sensor failed after two days. Then a month later I began having different lights come off and on with loss of power. I took it in to dealership and to Ford who could never repeat the codes. I replace the battery and this stopped for a month. It is now doing the same thing again. Stalling or acting as if it will. I have to pull over and restart it several times to reset the computer to get it to drive correctly. I am frustrated because no one can find out what is wrong. This occurs intermittently but when it does it can be over 10 times a day.

See all problems of the 2002 Ford Focus 🔎.

: the contact stated while driving 45 mph on the highway the vehicle stalled without warning. It was restarted but stalled again. The vehicle was towed to an independent repair shop and later driven to the dealer. The dealer could not determine the problem. Updated 11/14/2006 - the failure a ay after the vehicle was purchased. Diagnostic testing was done on the vehicle. The codes indicated that the fuel level sensor, vehicle speed sensor, and O2 sensor was out, and the transmission control switch was out of range.

See all problems of the 1999 Ford Focus 🔎.

Purchased car in December 2000 within days brakes squealing and grinding. . Called dealer said to let wear in. . Problem persisted. . Engine light came on . . Took car to nearest d dealership. . In January 2001. . Brakes shoes back and pads on front replaced. Oxygen sensor, and parking brake replaced . . Brakes still had problem engine light still on. . Took to dealership where purchased. . Kept 12 days. . Brakes adjusted and computor and ignition were replaced. . Light off. . Brakes still trouble. . Took back numerous times. . For check-ups. . At 16,000 told brakes need to be replaced in front and tires where all worn away on inside of tire. . Bald!! . . Manufactor and dealer would not pay for. . Replaced all four tires, alignment, and new brakes put on front brakes. . Car still not right with brakes. . Shaking violently of car while braking at any speed. Or going downhill . Took back to dealership rotors were no good as well as front brakes. They replaced. . Inner tires already wearing out. . . Brakes still giving noise and grinding. . Took back within month. . They said fine. . Took back again when oil changed. . Brakes where said to be fine. . Brakes noisy and grinding as usual. . 3 weeks later brakes failed. . Had car towed to dealership. . . . They state needs new brakes on front and backshoes cracked and need new rotors. . . They keep saying its the way we drive car. . . No way. . Never had this much problem with any brakes in any car we have owned. . . Car is very unsafe and made with inferior products. . (tiresize: 15).

See all problems of the 2001 Ford Focus 🔎.