SPONSORED LINKS

2006 Impreza vibration/rattling noise from underneath at 2000-2600 RPMs

Tiny
CMERRILL8
  • MEMBER
  • 2006 SUBARU IMPREZA
  • 4 CYL
  • AWD
  • AUTOMATIC
  • 76,100 MILES
My 2006 subaru impreza is making a strange vibration/rattling noise that seems to be coming from underneath me, and more to the front. I can't physically feel the vibration, just hear it. This noise only happens when I am at 2000 rpms and accelerate up to about 2600 at a nice and steady pace. When I accelerate quickly I get little to no noise at all. The noise sometimes gradually wears off after a couple seconds (if I keep the rpms steady in that range). I've also noticed that it happens when the engine is revving down past the 2500-2000 rpm's range.
SPONSORED LINKS
Monday, May 9th, 2011 AT 5:48 PM

3 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Suspect exhaust is causing noise maybe CAT
Was this
answer
helpful?
Yes
No
Monday, May 9th, 2011 AT 5:52 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Probably some exhaust sheilding is making noise. I've run into this quite freqently on many vehicles. They always get louder within a specific rpm range.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, May 9th, 2011 AT 6:06 PM
Tiny
SIXPACK SUBARU
  • MEMBER
  • 22 POSTS
I agree with fixitmr, heat shields are a large problem. And on your model, the cross-over pipe junctions heat shields are known specifically for cracking near the spot-welded nuts on the heat shield itself. Get someone to have a good look at them.A 'fine rusty line' is indicative of a heat shield fracture/crack.
Was this
answer
helpful?
Yes
No
+2
Monday, June 20th, 2011 AT 1:03 PM

Please login or register to post a reply.

Related Engine Revs Up Content

Idle Air Control Motor Replacement
GUIDE
Idle Air Control Motor Replacement
The idle air control motor or idle speed control motor is designed to adjust the air flow into the intake manifold at engine idle. Engine idle speed is monitored by the PCM...
VIEW MORE

Sponsored links