Passenger side o2 sensor, 97 4.0 4x4

gregjsmith · #1 09-18-2016, 11:00 AM

I'm trying to figure out how to replace the passenger side o2 sensor on a 97 4.0 4x4. I can see the sensor but I can't seem to get anything to it and obtain leverage.

Anyone replace this sensor on this model have any suggestions?

ben_kerchner · #2 09-22-2016, 02:34 PM

I just replaced the same one on the same exact truck. I've done this job three times and the only way to get them out is to heat up the pipe with a MAP gas torch or some kind of gas heat source. And heat the pipe up until its glowing red hot, then stick a 02 sensor socket on the end of that thing with a huge breaker bar attached to it, and haul on it with everything you've got to break it loose. Its a task but thats the way I know to do them. You can pick up an 02 sensor socket down at the local auto shop most likely. The big breaker bar is a must. Just go buy a cheapo from lowes for like 20-30 bucks. They're so big even the cheap ones don't break. The bar I have is about 2ft long. Best of luck to ya!

gregjsmith · #3 10-30-2016, 12:32 PM

I had to use one of the sockets that has the adapter on the side. I ran a extension that crossed the exhaust toward the front of the truck. I didn't have room for a breaker bar so I put a ratchet and used my foot to put enough pressure on it.