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Thread: O2 Sensor

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    Senior Member Getting Dirty sean112280's Avatar
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    O2 Sensor

    Has anyone had to replace one on their 4.7? Is it a PITA? One of mine went and threw the check engine light. Wife said the Jeep cut-off on her twice this morning taking the girls to school. So I will be replacing that, just wanted any suggestions or to get an idea what I'm in store for. Thanks

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    Lifetime Member Getting Dirty Matt's Avatar
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    Spray some PB Blaster on it the night before, make sure the exhaust pipes are cold, use an O2 socket and you'll be good.

    Dont use an open ended wrench!

    Oh and replace with an oem sensor. These vehicles have sensitive heating circuits and tend to not play nice with aftermarket O2 sensors

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    Senior Member Getting Dirty sean112280's Avatar
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    Thanks Matt. Appreciate it.

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    Lifetime Member Getting Dirty 06JeepXKHEMI's Avatar
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    PB Blaster and I have become real close over the last month! Love that stuff
    2K6 Limited Jeep Green Metallic/Saddle Brown Leather XK HEMI QDII Old Man Emu HD Suspension w/ Fox Emulsion 2.0 Rear Shocks 1.5" SpiderTraxx Wheel Spacers 265/70 GoodYear MTRs w/Kevlar True Dual Exhuast w/IMCO 50 K&N 63 CAI Diablo 91/Performance Transmission Tuned SA Belly Skid MOPAR Gas Tank Skid, Transfer Case Skid, Suspension Skid Front Tow Hooks 6k HID Lows/3k Fogs

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    Super Moderator Getting Dirty 07JeepXK's Avatar
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    Like Matt said. On the 4.7 liter you MUST use oem dealer o2 sensors. I learned that the hard way. Cost me lots of money. Won't make that mistake again. And if I recall correctly the weren't that expensive. About $40-50 a piece with my discout
    2007 4.7 Liter XK | Front Modified OME HD Lift | Rear 4" Superlift | JBA UCA's | Rusty's Rear Adjustable Track Bar | Rysty’s Adjustable Upper and Lower Rear Control Arms w/Heim Joints | Mickey Thompson Classic III 17x9 Wheels | 315/70R17 Goodyear Duratracs | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front Electronic Locker | Rear Heat/AC Delete

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    Senior Member Getting Dirty sean112280's Avatar
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    Quote Originally Posted by 07JeepXK View Post
    Like Matt said. On the 4.7 liter you MUST use oem dealer o2 sensors. I learned that the hard way. Cost me lots of money. Won't make that mistake again. And if I recall correctly the weren't that expensive. About $40-50 a piece with my discout
    Awesome. Thank you for the info.

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