o2

I replaced my Exhaust recently, The Right Cat had holes and was starting to get loud and sound like a Clunker.. I still have the original O2's on there. Research say the 4-Wire type last from 60-to 100k. I'm well over 100k. I'm not getting any errors, but I think it might be time. The Engine...

I recently picked up this 03 Explorer with the 4.6L in it, the odometer says roughly 198k. I bought it pretty cheap so I've been fixing things and sorting out the bugs. Up until now the fixing has all been mechanical, bearing assy's, upper control arms, latches, hinges, etc. Here's the deal...

On a 2000 Explorer 4.0L SOHC VIN E engine, are the OEM O2 sensors… heated… or unheated… which one? Please advise. Thanks!

Hi guys, My check engine light is on and it says I have a problem with the O2 sensor. Does anyone know where the sensor is? Specifically the downstream one. Or any other things to look at? Thanks! P013A O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2)

Anyone here familiar with “normal” voltages for O2 sensors? Two of my sensors appear to be functioning correctly and are on opposite voltages. I’ve read before that it should be that way. However, the third sensor on bank 2/3 stays steady around .790 volts. Any idea if that’s bad? I appreciate...

So i have a 97 Eb 5.0 its been dubbed "Problem child" Dropped the trans pan today for a filter change and to my surprise its the first time it's been dropped since factory. 287k miles! and the inside of the trans wasn't even bad. No shaving! Anyways I'm hoping that part goes well. On to the...

Silicone Poisoning

O2 access panel through floor

O2 sensor removal with O2 socket 3/8" knuckle and extension

O2 sensor harness connections on '96 5.0