re: Question for OT mechanics

quote:

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O2 sensor

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O2 sensors and cc's are on vehicles for the sole purpose of making vehicles burn unnecessary fuel. When O2 sensor quits working, the computer is programmed to make vehicle burn more fuel bc people in the 80's were adding oxygen to fuel to burn more efficiently. CC is in your vehicle for the sole purpose of burning off the excess gas that is force through the system.

The problem with changing O2 sensor is how hard is it get to it and has it partially welded on from the natural heat. Expedition probably isn't too hard to do bc usually have some space.

Mechanics will always try to scare you into fixing crap that doesn't need to be fixed.