Peter Parker

Thats right... every super hero needs a trustworthy vehicle!

Your lucky you got that many miles before this happened. My 99 only got 74,000 before the gaskets gave way. According to my machanic, the 96-99 2.5 were notorious for this problem because the factory installed gaskets did not have an etched surface (grabs the head better and prevents slippage). Anyway, he said about 3,500 to 4,000 (prices may vary, this is Alaska after all) for a shortblock or the 2,000 for a rebuild. I went with the rebuild but that also included many extras like a new timing belt, head shaving, rollers, etc. that he found to be worn out. Hope this helps.

Thank you for the information. After I posted the original question, I did replace the sensor and the engine check light is now off. I did have to remove the air cleaner components. Getting the bolt down through the sensor was a bit tricky with all the other stuff in the way. In all about a half hours work. Cheers!

I figured this could have been the problem too, but I didn't know where to find the sensor. I will try this before replacing the sensor. Thanks for the information!.

Thanks, this is just what I was looking for! Hope the 2.5 is similar.

Hello all, New to this board. I have a 99 Outback Legacy with 98,000 miles. My check engine light came on a while back and I went to the local repair shop to read the codes. They said the knock sensor is failing. So I ordered a new sensor and it is on the way. My cheapy shop manual has terrible instructions and an even worse photo of the sensor on the engine. I was wondering if someone out there might have some helpful advice and possibly a detailed photo depicting the exact location of the sensor? Thanks in advance. Peter