# Vibration noise **URL:** \ **Category:** Canada Nissan Automotive\ **Created:** [May 3, 2007, 9:18am UTC](https://forums.speedlife.net/t/vibration-noise/146622 "2007-05-03T09:18:28Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Impact\_Blue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/impact_blue/32/5807_2.png) [@Impact\_Blue](https://forums.speedlife.net/u/Impact_Blue)\ **Post date:** [May 3, 2007, 9:18am UTC](https://forums.speedlife.net/t/vibration-noise/146622/1 "2007-05-03T09:18:28Z")
I have a weird vibration noise at around 2500 rpm whenever I’m off the gas…it’s an SR and I just can’t figure out what it is. Anyone know what I mean or anyone experienced something similar? ---
**Author:** ![beatshack](https://avatars.discourse-cdn.com/v4/letter/b/f0a364/32.png) [@beatshack](https://forums.speedlife.net/u/beatshack)\ **Post date:** [May 3, 2007, 9:27am UTC](https://forums.speedlife.net/t/vibration-noise/146622/2 "2007-05-03T09:27:31Z")
yeah… can you tell where the sound is coming from? i have a bolt missing on my exhaust mani/turbo heatshield, it rattles sometimes. ---
**Author:** ![AdamP](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@AdamP](https://forums.speedlife.net/u/AdamP)\ **Post date:** [May 3, 2007, 10:12am UTC](https://forums.speedlife.net/t/vibration-noise/146622/3 "2007-05-03T10:12:55Z")
There are 3 locations where you can rattle due to shielding… -The most common would be your headshield on the downpipe. -There is also a headshield on the catalytic converter. If you put in a test pipe you can take off the top shielding here because a test pipe will not be close to getting as hot as a cat. -Heatshield on the exhaust mani. I think I still have a bit of a rattle from this one. One of the bolts is stuck in there with the head off so there is some issues. Aaron, you can just grab one from Home Depot. I just went with a 1/4" \* 1/4" bolt I believe and it fit fine (at least that’s what I remember for size… maybe it was a bit smaller). ---
**Author:** ![dteam](https://avatars.discourse-cdn.com/v4/letter/d/59ef9b/32.png) [@dteam](https://forums.speedlife.net/u/dteam)\ **Post date:** [May 3, 2007, 11:46am UTC](https://forums.speedlife.net/t/vibration-noise/146622/4 "2007-05-03T11:46:20Z")
If your blow off valve is too tight, you could be hearing the Ch-Ch-Ch as the air flows back through the turbo. that would be a good RPM for that to happen. Darek ---
**Author:** ![beatshack](https://avatars.discourse-cdn.com/v4/letter/b/f0a364/32.png) [@beatshack](https://forums.speedlife.net/u/beatshack)\ **Post date:** [May 3, 2007, 1:41pm UTC](https://forums.speedlife.net/t/vibration-noise/146622/5 "2007-05-03T13:41:48Z")
??? i dont think he’s talking about compressor surge… ---
**Author:** ![Impact\_Blue](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/impact_blue/32/5807_2.png) [@Impact\_Blue](https://forums.speedlife.net/u/Impact_Blue)\ **Post date:** [May 3, 2007, 3:33pm UTC](https://forums.speedlife.net/t/vibration-noise/146622/6 "2007-05-03T15:33:12Z")
it sounds almost sounds like a fine grinding can sound, not like a grinding sound when you grind gears but I was looking under the hood trying to find out where noise is coming from but I still have no clue let alone what to do to fix it… ---
**Author:** ![silvertable58](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@silvertable58](https://forums.speedlife.net/u/silvertable58)\ **Post date:** [May 3, 2007, 3:48pm UTC](https://forums.speedlife.net/t/vibration-noise/146622/7 "2007-05-03T15:48:14Z")
makes shure your fan is nuts on the fan is tight …