Removing Seized Oxygen Sensor

[786innovation]

Hi All,

I need to remove oxygen sensor (on top of engine) Bank2 sensor1. But it is stuck. I tried with special sensor socket but couldn't remove it. I went to mechanic and he is asking for £70 just to remove the sensor. Is there any penetrating oil or any other spray that would help me removing the sensor. I don't want to heat it up because I don't have the appratus. which is the best spray or oil to remove seized sensor or plugs or bolts.

Thanks in advance...

[The Cav]

try a little brake fluid around the thread ...leave for a bit and try later to undo

its a great penetrating fluid ...just dont get it on the paintwork of the car

failing that wd40....but the brake fluid is my 1st try

[redjts30]

Hi All,

I need to remove oxygen sensor (on top of engine) Bank2 sensor1. But it is stuck. I tried with special sensor socket but couldn't remove it. I went to mechanic and he is asking for £70 just to remove the sensor. Is there any penetrating oil or any other spray that would help me removing the sensor. I don't want to heat it up because I don't have the appratus. which is the best spray or oil to remove seized sensor or plugs or bolts.

Thanks in advance...

Just removed mine this week. After parking up at night and after the exhaust had cooled to a not too hot temp. I used WD40 spray on it. Did this three nights running and hey presto out it came. Perhaps I was just lucky, but give it a try. Good luck

J.T.