Hlep with high-frequency buzz, please!

[PetrolioBenzina]

Originally Posted by Ultramaroon

For the gas pedal, yeah. It could be a bajillion things, though. You mentioned the speaker grill. A-pillar cover? Clutch/brake pedal assembly where it attaches to the chassis? The return spring inside my clutch master would rattle occasionally. That one was brutal. Sounded like a spun rod bearing until I learned to just barely tap the clutch pedal. Freakish.

Damnfino why I can't get to those docs. There seems to be (I think) a solenoid of some sort up near where the noise is. Turn the car off, and a minute or two later you hear a valve, motor, whatever. I don't understand how pressure on the pedal stops the noise unless there is something mechanical going on.

Could be on the fire wall? Not sure what kind of connection there is from the pedal forward.

A buzz is far worse than a rattle!

[Ultramaroon]

Originally Posted by PetrolioBenzina

Damnfino why I can't get to those docs. There seems to be (I think) a solenoid of some sort up near where the noise is. Turn the car off, and a minute or two later you hear a valve, motor, whatever. I don't understand how pressure on the pedal stops the noise unless there is something mechanical going on.

Could be on the fire wall? Not sure what kind of connection there is from the pedal forward.

A buzz is far worse than a rattle!

Could it be that failed cooling fan on the radio? That thing makes quite a racket when it goes. I'm reaching.

[Somerandom18]

I get this too. Found that there are I guess pressure vents in the trunk that have flaps that buzz.

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[PetrolioBenzina]

Going to dig next weekend at my sisters house. Plenty o'tools and space to poke around. If I find it, I'll let you know.

It has to be something vibrating. I hope it's not in the dash, that would suck. If you saw the Top Gear episode where JC was in a Ferrari 612
with a wiper arm buzz, it similar to that but not nearly as loud and higher freq. I've been looking at that, but since I discovered that pressure on the go-pedal silences the buzz I'm back at square one.

Pic of buzz.

[Tcoat]

Originally Posted by PetrolioBenzina

Going to dig next weekend at my sisters house. Plenty o'tools and space to poke around. If I find it, I'll let you know.

It has to be something vibrating. I hope it's not in the dash, that would suck. If you saw the Top Gear episode where JC was in a Ferrari 612
with a wiper arm buzz, it similar to that but not nearly as loud and higher freq. I've been looking at that, but since I discovered that pressure on the go-pedal silences the buzz I'm back at square one.

Pic of buzz.

I had a buzz in the same spot on the passenger side. It turned out to be some wires from the Airbag system that were vibrating against the cover. Like you it only happened at certain RPMs and would go away when under throttle. Try giving the cover a good whack on a hot day. (not joking that is how I fixed mine)

[Ultramaroon]

Does it change when you blast air on high through the vent, or through defrost? Those are separate and loose manifolds.


There is a panel that pops off of the side of the dash with the door open. You can feel around but be mindful of the sharp edges.

[humfrz]

Originally Posted by Tcoat

I had a buzz in the same spot on the passenger side. It turned out to be some wires from the Airbag system that were vibrating against the cover. Like you it only happened at certain RPMs and would go away when under throttle. Try giving the cover a good whack on a hot day. (not joking that is how I fixed mine)

Yep, one good whack ought to do it ………




humfrz

[Tcoat]

Originally Posted by humfrz

Yep, one good whack ought to do it ………




humfrz

Wrong airbag. And I didn't whack the sensors.

[PetrolioBenzina]

Originally Posted by Tcoat

I had a buzz in the same spot on the passenger side. It turned out to be some wires from the Airbag system that were vibrating against the cover. Like you it only happened at certain RPMs and would go away when under throttle. Try giving the cover a good whack on a hot day. (not joking that is how I fixed mine)

Not even noticeable acceleration, just pressure on the pedal. I'll take a look at this, too.

[Ultramaroon]

Originally Posted by PetrolioBenzina

Not even noticeable acceleration, just pressure on the pedal. I'll take a look at this, too.

My money is on the pedal assembly. Remove it but leave it connected so you can start the engine.

[humfrz]

Originally Posted by Tcoat

Wrong airbag. And I didn't whack the sensors.

Sheeeesh …….. grumpy ……


humfrz

[ToySub1946]

Take the car to the Stealership under your warranty.

They'll be happy to have an 18 year old with zero experience spend hours driving your car around, testing for squeaks and rattles. These guys get paid very little (hourly pay), yet sometimes find a fix. What they won't do is tell you 'unable to verify complaint',. or 'no problem found', as any commissioned tech would say, to get you to go away. You might have to take the car to the same guy several times to find a permanent fix. Only problem is these guys tend to use up clutches, tires, etc. during their 'required' road tests.

[PetrolioBenzina]

Originally Posted by Ultramaroon

My money is on the pedal assembly. Remove it but leave it connected so you can start the engine.

It might be above my comfort level to take the car out on the road at 60 to see if that fixes the problem!

[Ultramaroon]

Originally Posted by PetrolioBenzina

It might be above my comfort level to take the car out on the road at 60 to see if that fixes the problem!

Had to review. I thought all this was happening in the driveway at idle. Does the vibration happen at all rpm, or at what engine speed does it resonate?