Muffler rattle noise - Toyota Yaris Forums

cougar65 · 10-20-2012, 01:35 AM

So, I have had my axle back in for some time now and ever since I've installed it at certain rpms it woud make a rattleing noise. It is NOT my heat shield. Sound almost sounds like rocks in my muffler, Im certain its not my catalitic converter sence i have no CEL.
Could it be the gasket? I reused it instead of buying a new one. Gas escaping and making that aweful noise? I have shaken the muffler to try to hear if anying is oose inside and i dont hear anything. It like to make the noise when its waremed up and ussually under a load.

Bluevitz-rs · 10-20-2012, 08:45 AM

did you assemble the spring bolts properly when you clamped it back together?

cougar65 · 10-20-2012, 11:54 AM

so, if i didnt it could make the noise?, ill take it appart and put it back togeter then.

Bluevitz-rs · 10-20-2012, 11:40 PM

yeah if the bolts aren't bottomed out or the spring shifted while you tightening it up. Or it could just be a bad weld that broke loose and makes noise at it's resonance frequency of whatever RPM you hear it.

MUSKOKA800 · 10-21-2012, 11:56 AM

Or it could have a loose baffle inside the can itself (corroded or broken weld).
My TRD axleback may have that same issue. 80,000 kilometers of service through four years. I guess it won't last forever.

cougar65 · 10-24-2012, 12:30 PM

***Fixed**** Was the jasma stamp that was rattleing... took it off and now its rattle free.

10-20-2012, 01:35 AM	#1
cougar65 View User's Garage Drives: 2010 yaris 5door Join Date: Oct 2010 Location: Santa Cruz Posts: 52	Muffler rattle noise So, I have had my axle back in for some time now and ever since I've installed it at certain rpms it woud make a rattleing noise. It is NOT my heat shield. Sound almost sounds like rocks in my muffler, Im certain its not my catalitic converter sence i have no CEL. Could it be the gasket? I reused it instead of buying a new one. Gas escaping and making that aweful noise? I have shaken the muffler to try to hear if anying is oose inside and i dont hear anything. It like to make the noise when its waremed up and ussually under a load.

10-21-2012, 11:56 AM	#5
MUSKOKA800 Drives: '08 Yaris Sedan, Aero Package Join Date: Oct 2008 Location: Burlington, Ontario, Canada Posts: 1,720	Or it could have a loose baffle inside the can itself (corroded or broken weld). My TRD axleback may have that same issue. 80,000 kilometers of service through four years. I guess it won't last forever. __________________ TRD Upgrades: 18" Wheels wrapped in 215/35/18 PZero's, Sportivo Shocks/Struts, Lowering Springs, Swaybar, Axle-Back Exhaust, Oil Cap, Rad Cap, Signage. Aftermarket Goodies: Piggies SS, K&N Drop-In, Blitz S/C, DC Header, NST Pulley) Toyota Options/Accessories: Sport Pedal Covers, Sport Shift Knob, Ipod Interface, Summer Mats, Winter Mats, Cruise Control, Auto-Dim Mirror, Echo steelies with winter boots.

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10-20-2012, 08:45 AM	#2
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	did you assemble the spring bolts properly when you clamped it back together?

10-20-2012, 11:54 AM	#3
cougar65 View User's Garage Drives: 2010 yaris 5door Join Date: Oct 2010 Location: Santa Cruz Posts: 52	so, if i didnt it could make the noise?, ill take it appart and put it back togeter then.

10-20-2012, 11:40 PM	#4
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	yeah if the bolts aren't bottomed out or the spring shifted while you tightening it up. Or it could just be a bad weld that broke loose and makes noise at it's resonance frequency of whatever RPM you hear it.

10-24-2012, 12:30 PM	#6
cougar65 View User's Garage Drives: 2010 yaris 5door Join Date: Oct 2010 Location: Santa Cruz Posts: 52	*Fixed** Was the jasma stamp that was rattleing... took it off and now its rattle free.