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  1. Discovery 3 / LR3
    Okay folks, I have battled a condition inherited from previous owner and I'm guessing one of the mechanics that maintained this 2008 LR3 4.4v8. The Downstream Left O2 Sensor is either not mounted in it's normal position along the exhaust system or the Cat has been replaced with a slightly...
  2. Discovery 3 / LR3
    So it is time to change the oxygen sensors in my 20008 v8 LR3 with 206,000 miles... possibly/likely on the original sensors. Not bad. Atlantic British only sells Walker brand, the set of 4 is $400+ Shipping. If I need to spend that much I can if that is what is best... However, there are many...
  3. Tech & DIY
    Hi. I just purchased a 2016 6cyl. with 57k miles. I’ve had an intermittent check engine light but no performance issues. My first question is...Do I need to replace immediately? Second question...is the replacement of the O2 sensor labor intensive? I am handy and have tools so just wanted to...
  4. Discovery Series II
    Hi everyone I’d love your advice. My 2003 Discovery II has already been a labor of love. I got a P38 engine installed 1.5 years ago when my previous engine blew up. Since then it has been working great. Never had any problems with it. Just did a 3k road trip, no issues at all. I took it in for...
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