Yes, another 'weird noise' thread

[Keep]

So ever since I bought my 95 5S-FE 5-spd camry, there has been a slight intermittant annoying sound.

Verbally, I could only say it sounds like a high-pitched buzzing/vibrating sound that is dependant on engine RPM.

It's an intermittant problem, probably with heat and engine temperature being good variables.

When I'm in any gear (with the clutch engaged or disengaged) I get this slight metal vibrating/buzzing sound around 3000rpm.

If I am at a stoplight, and rev my engine from idle to say... 4500rpm. When the tach passes 3000rpm on way up "bzzzz", and when I let off the throttle and the tach passes 3000rpm on the way down "bzzzz"

Also, when I am driving and happen to be in a gear that puts me right at 3000ish rpm, the sound is there, but louder on hard acceleration or vaccuum under deverelation.

I'm heavily leaning towards heat shielding on the stock pipes (that thin metal 2nd layer on the downpipe/intermidiatepipe. Or an exhaust leak.



So, even though I'm sure I've narrowed down the problem to the exhaust system, I would greatly appreciate more input. Perhaps i've steered myself in the wrong direction and need more guidance. If anyone has experienced this or has input on the subject, please help me out

Kyle

[tr1ckyz]

check stock intake box, is it tightened perfectly? if not, you'll hear sounds coming from it

[95WhiteCamry]

^^ agreed. although it could also be something in the exhaust or of the such, it could be something minor as a screw gone bad or something not tied down too well.

[foompla]

motor mount/flex pipe ($$$) or another exhaust leak is my bet.

[DiscoPotato]

Dude I have the same exact problem on my Gen 2. But mines on 2500-2700 rpm and it just rattles like a vibrating heat shield is hitting the manifold... but I checked the nuts and bolts and they were tight and fit. I hate it... it makes my car sound like its broken.

[Keep]

Well I have an sri, and I've checked all the mounting points and everything is secure!
Also, I can play with the throttlebody while i'm standing in front of the engine bay, and the sound is not coming from the engine bay, but below the engine.

I've already had my flex dut and replaced (they just cut that 8" section and re-welded a new one, so there's heat shielding on the stock pipe that's not welded tight to the new flex. That could be the problem?

DiscoPotato, I know what your talking about, it makes the car sound like shit. Embarassing.

Thank you for your replies everyone! I'll be doing some closer inspection on the exhaust after street legals tonight. Oh, and I'll have some pics of my car to post too!

If anybody else has a suggested cause of this irritating noise, please let me know.

[DiscoPotato]

Hmm... So it's under the car? I see...