Theft Light/o2 sensor question
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Elder User
Joined: Mar 2004
Posts: 729
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From: Houston
Theft Light/o2 sensor question
Ok guys I have two questions. These are about my 99' 3x with a 3.0/auto. One is on replacing my o2 sensors is there a special socket/tool required or will a regular socket do the trick? I get paid friday and am going to replce them now in my now 2 month long effort to fix my crappy gas milage (14 highway/11 or 12 city), you kght recall I replaced plugs, wires, air filter, fule filter, increased tire pressure from 28psi to 32psi, have changed all oils, ect. I have gotten 20mpg on the highway before so hopefully this will work. Ok now for the brain teaser - there is a light in the dash that reads "THEFT" when you start the truck this light comes on briefly and shuts off. Every now and then I start my truck and this light stays on. If I simply shut the truck off and re-start the light goes away. Last nigh I got in my truck, started it and the "THEFT" light was blinking. I let the truck idle for a few minutes and it continued to blink. Shut the truck off and re-started it and it went away. I do not have a factory alarm system, I do have an after market, but I don't think it's tied into this. Any ideas here this is kind of making me worry?
Junior User
Joined: Mar 2004
Posts: 59
Likes: 0
From: santa clarita california
the socket will run you around 10 bux and you can never own enough tools.... havent done it on your truck so i dont know ifyou can just get a wrench (BOX END ONLY!) to slip over it.... im pretty sure you would have the room but not posative... but yeah... they sell that socket all over the place.... has a slit down the side the length of the socket to let the wires out as your turning it. goodluck
Joe
Joe
Senior User
Joined: Mar 2004
Posts: 376
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From: Marsville Canada
Totallyroosted is correct you can never have enough tools. But an open end wrench will work just as well. I needed to use the torches to brake mine free. You may just try getting the exhaust hot then try to crack free. My O2 sensor can with factory sealant on the threads already, if it doesn't the technical info. at the beggining of the threads will advise you what sealant you need. Just a hint depending where your O2 sensor is, have a second hand turn the wire until you get the threads started. Mine was in a tight spot and second hand from above the engine helped greatly.
Junior User
Joined: Mar 2004
Posts: 59
Likes: 0
From: santa clarita california
its usually a pretty big factor.... technically it says to change the o2 every 60k miles but nobody ever does (well not most people) untill they notice their gas mileage going way down.... also make sure you have a nice clean air filter and your tires are properly inflated. goodluck
JOe
JOe
