muffler shield binga binga harmonic ringing.

hawaiiguide · 10-12-2007, 10:59 PM

We couldn't find a similar post on the Muffer Heat Shield on the forum...

There may be a ghost noise under our Prius's truck area. The noise only happens on rough roads. It does't sound like the typical low octive rattle. More like a tinga, tingaling. Sorry about the not being able to use words to describe sounds.

Tickling the cars underbody seems faily solid. We noticed however, that if the muffler heat shield is plucked it creates an interesting harmonic boooing... we were wondering if this could be our rear end ghost.

Anyone else had this situation or recommendations on how to quiet down an occational noisy rear end. We have dampend all of the tools in the lower trunk comparment... There doesn't seem to be anything loose inside the car.

Any Ideas... you guys are great at solving problems.

richard

V8Cobrakid · 10-12-2007, 11:14 PM

you may be right... but i think it could be a little different. i recently installed a sub and could not find my out-of-car rattle. i thought it was the heat shield but the rattle did not go away when i touched it.

or.. i could be wrong. i'll search when it's not raining.. or wet outside.

DGH · 10-13-2007, 01:39 AM

I'm currently chasing down a noise, kind of high pitched, happens over bumps or rough roads.
I discovered that with light brake pressure, the noise is gone.
Easy for you to try, good luck.....Dan.

abq sfr · 10-14-2007, 09:56 PM

Yes, mine has the same rattle. I actually found it when I was messing around the battery, adding a wire from the battery post to a ham radio. I can hit the floor there by the battery with my hand and it makes that rattle. Now that the temperature has gone down, I hear that exact same rattle when I'm driving. At least I know where it's coming from! I assume its under the trunk floor right side.

hawaiiguide · 10-16-2007, 04:44 PM

<div class='quotetop'>QUOTE(abq sfr @ Oct 14 2007, 08:56 PM) [snapback]525648[/snapback]</div>

Quote:

Yes, mine has the same rattle. I actually found it when I was messing around the battery, adding a wire from the battery post to a ham radio. I can hit the floor there by the battery with my hand and it makes that rattle. Now that the temperature has gone down, I hear that exact same rattle when I'm driving. At least I know where it's coming from! I assume its under the trunk floor right side.
[/b]

Thanks, You are rignt. Rattle is under the trunk on the passenger side. I think it is the heat shield. If one give the muffler heat shield a tap it resonates. I wonder how many bolts are under the car that may be coming loose or may be tightened? Has anyone looked under the car to check on loose bolts?

Any ideas anyone.

Thanks, richard

V8Cobrakid · 10-16-2007, 06:21 PM

bolts? doesn't the prius clip together? lol

patsparks · 10-16-2007, 07:40 PM

There may be small stones in the heat shield.

pjschwartz · 11-20-2007, 01:52 PM

<div class='quotetop'>QUOTE(hawaiiguide @ Oct 12 2007, 10:59 PM) [snapback]524974[/snapback]</div>

Quote:

We couldn't find a similar post on the Muffer Heat Shield on the forum...

There may be a ghost noise under our Prius's truck area. The noise only happens on rough roads. It does't sound like the typical low octive rattle. More like a tinga, tingaling. Sorry about the not being able to use words to describe sounds.

Tickling the cars underbody seems faily solid. We noticed however, that if the muffler heat shield is plucked it creates an interesting harmonic boooing... we were wondering if this could be our rear end ghost.

Anyone else had this situation or recommendations on how to quiet down an occational noisy rear end. We have dampend all of the tools in the lower trunk comparment... There doesn't seem to be anything loose inside the car.

Any Ideas... you guys are great at solving problems.

richard
[/b]

I've got the same exact problem happening on rough roads . . . "tinga, tingaling" . . . I've had the entire rear deck apart and can't find the source. I one point, I thought it was the license plate, but confirmed it wasn't.

Were you able to prove your theory re the exhaust shield?

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10-12-2007, 10:59 PM	#1
hawaiiguide Member Join Date: Jun 2007 Location: Honolulu Posts: 33 My Car: 2006 Prius Model: Package: #6 Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	We couldn't find a similar post on the Muffer Heat Shield on the forum... There may be a ghost noise under our Prius's truck area. The noise only happens on rough roads. It does't sound like the typical low octive rattle. More like a tinga, tingaling. Sorry about the not being able to use words to describe sounds. Tickling the cars underbody seems faily solid. We noticed however, that if the muffler heat shield is plucked it creates an interesting harmonic boooing... we were wondering if this could be our rear end ghost. Anyone else had this situation or recommendations on how to quiet down an occational noisy rear end. We have dampend all of the tools in the lower trunk comparment... There doesn't seem to be anything loose inside the car. Any Ideas... you guys are great at solving problems. richard

10-12-2007, 11:14 PM	#2
V8Cobrakid Senior Member Join Date: Jun 2004 Location: hell Posts: 2,894 My Car: 2004 Prius Model: N/A Package: #9 Thanks: 9 Thanked 18 Times in 18 Posts Friends: 5	you may be right... but i think it could be a little different. i recently installed a sub and could not find my out-of-car rattle. i thought it was the heat shield but the rattle did not go away when i touched it. or.. i could be wrong. i'll search when it's not raining.. or wet outside.

10-13-2007, 01:39 AM	#3
DGH Thread Terminator Join Date: Aug 2006 Location: Wales, WI Posts: 125 My Car: 2006 Prius Model: Package: #8 Thanks: 2 Thanked 2 Times in 2 Posts Friends: 0	I'm currently chasing down a noise, kind of high pitched, happens over bumps or rough roads. I discovered that with light brake pressure, the noise is gone. Easy for you to try, good luck.....Dan.

10-14-2007, 09:56 PM	#4
abq sfr Senior Member Join Date: Mar 2007 Location: Albuquerque, NM Posts: 673 My Car: 2007 Prius Model: Package: #2 Thanks: 1 Thanked 0 Times in 0 Posts Friends: 1	Yes, mine has the same rattle. I actually found it when I was messing around the battery, adding a wire from the battery post to a ham radio. I can hit the floor there by the battery with my hand and it makes that rattle. Now that the temperature has gone down, I hear that exact same rattle when I'm driving. At least I know where it's coming from! I assume its under the trunk floor right side.

10-16-2007, 06:21 PM	#6
V8Cobrakid Senior Member Join Date: Jun 2004 Location: hell Posts: 2,894 My Car: 2004 Prius Model: N/A Package: #9 Thanks: 9 Thanked 18 Times in 18 Posts Friends: 5	bolts? doesn't the prius clip together? lol

10-16-2007, 07:40 PM	#7
patsparks An Aussie perspective Join Date: Jul 2007 Location: Adelaide South Australia Posts: 9,229 My Car: 2004 Prius Model: N/A Package: Base Thanks: 124 Thanked 181 Times in 139 Posts Friends: 33	There may be small stones in the heat shield.