Source
r/cars•
CoolCheech

Two noises my 2006 Xterra 4.0 MT is making.

I have an 06 Xterra with 143,000 miles.

For a while, since I got it 2 years ago basically, it had a "wheeze." I guess a whine when I'm on the throttle. Here's a video of it:
https://youtu.be/g-tcj04MN4M

Since I've gotten the car I've changed one catalytic convertor and for the past year have had a P0430 cat efficiency code for the other side. (I'm pretty sure that's the code. Or a P0420.) Anyway, the car has a throaty grumble and I feel like it's getting worse, but I don't know if it's related. It sounds like it's coming from equal distance around the car.
Here's a video: https://youtu.be/Beb1kFmYB3k

Can anyone tell me if these sounds are something to be concerned with? The car runs fine otherwise.

Thanks.

Posted Nov 29, 2016, 4:16 PM UTC

24
Well_thats_cool•

Try asking in r/xterra I may be mistaken but I think the timing chain guides have been known to cause problems

1
burledw•

Take it to a mechanic. What you provided us was great but it's still not enough. The whine is likely to be something simple, even nothing at all. But, the throaty grumble was not right. Could be exhaust related, like a leak or a misfire. Also, could be engine mechanical for several reasons. I cannot stress enough the advantage of taking it to a mechanic for a diagnosis. If they find nothing, you may not even have to pay. If you like your xterra, you should spend the money to at least diagnose. SUVs are rarely being built on truck 4x4 platforms these days.

1
CoolCheechOP•

That's a good point. This is a capable vehicle and it would be great to get another 100k out of it.

1
2002fofocuszts2012 Ford Fusion SEL•

That high pitched whine almost sounds like an alternator with bad bearings.

1