Moderator: volvite
Nissan Technical Service Bulletin NTB05-01b may be related to your noiseKnightro wrote:I saw in another post someone mentioned this. Oreogaborio I think. Anyway, for about the last 1,000 miles or so I've noticed what sounds like a Diesel engine at almost exactly that RPM. Just over 2,000 RPMs under a mild acceleration. Any faster or slower and the sound is gone. I waited to see if replacing the catalytic would have any effect but it didn't. It sounds similar to valve tapping or like I said a diesel. No performance issues at all. Car runs great and of course is out of warranty.
The post I referred to said there was a bulletin about a valve issue and it wasn't harmful. Does this sound related? Could anyone expand on that bulletin?
1) "google" this: Nissan Technical Service Bulletin NTB05-01bKnightro wrote:I did search for the bulletin you provided and wasn't able to find the exact one. Is it related to the power valve actuator? Doesn't sound like a home repair job either way but as much specific info I have the better when I talk to the service department. Thanks in advance for more info/links you can provide.
yeah, I don't know if anything after '05 has been problematic, but it may be relatedKnightro wrote:Thanks! That link was very specific, almost makes me think I could do that myself. I have an '06 pathfinder but it should be the same as the '05 they are describing. If this is indeed the problem then it doesn't look like there are any real moving parts I am damaging at the moment. Thanks again for the link. Believe it or not I saw that thread when I googled it but somehow missed the link with the whole description.
Ditto on the heat shield. I had the same thing on my 2006 PFer. Dealer just cut it off. Rattle gone.XVTer wrote:My Xterra had this issue and it ended up being the heat shield on the exhaust manifold. It had corroded around one of the mounting bolts and caused it to come loose. Drove me nuts for a few months before I figured it out.
May not be your issue, but worth a look