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pre cat

  1. Pre-cat concerns

    3rd Generation Altima (2002-2006)
    Hello all, I just recently purchased a 2003 Nissan Altima 2.5s with 85000km on it. I've been reading online about issues with the pre-cat on that particular make and model. The engine doesn't appear to be losing any oil or anything, but I am concerned that a precat failure may damage the engine...
  2. Recommended headers

    3rd Generation Altima (2002-2006)
    Hi - Just bought a 2002 Altima SL with the 2.5L engine with 137,500 miles. My wife & I really like the car, it's comfortable & the I really like the styling. But, I honestly don't know if I would have bought it if I'd known about the pre-cat problems. What I've read is a little troubling...
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