O2 sensors
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Fleet Mechanic
Joined: Jan 2003
Posts: 1,812
Likes: 15
From: Central Ohio
O2 sensors
Just curious, does anyone preemptively change there O2 sensors or wait until you get a error code? I'm almost at 130,000 and havent touched them. Trying to think if that might help mileage much, though it hasnt seemed to recently go down, except during this past winter it went down a lot more than usual, but seems be back in normal numbers now. And how many would my truck have? '99 4.2L 4x4.
Its been a great low maintenance truck but starting to worry since the miles are getting up maybe I should start going through it.
Its been a great low maintenance truck but starting to worry since the miles are getting up maybe I should start going through it.
Elder User
Joined: Jun 2004
Posts: 883
Likes: 2
From: La Crosse, Kansas
I've got over 225K on my '98 and have had little trouble with it. I wouldn't waste your money on O2 sensors if they aren't bad. I've only replaced one of mine, and only because i got the 02 slow read code.
