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Buzzing noise coming from inside drivers side sill

PORSCHE16V
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PORSCHE16V Member

PORSCHE16V

Posted
Posted

Hi all need a bit of advice on whats up with my Boxster 2.5 98 model.

Was chenging my wheel this morning & a buzzing noise started up from the drivers side sill (inside of car) just down the side of the seat.

The sound is continuous so ive had to disconnect the battery incase it causes any damage.

Tried starting the car to see if it would go but the noise still is there , car idles very lumpy & will not idle just cuts out.

any advice would be most appreciated

Thanks

Matt

fastboydave Member

fastboydave

Posted
Posted

When you say always there, is that regardless of engine running?? Do you have electric seats?? My thought would be if its inside and you have electric seats, then the motor is 'buzzing'. However, if its only with the engine running and its lumpy etc, is it fuel pump??

PORSCHE16V Member

PORSCHE16V

Posted
  • Author
Posted

Hi mate i thought it was the fuel pump to, the buzzing is continuous if the engines running or not , the car has electric seats but the sound is coming from under the bonnet & boot catch so wouldnt of thought it would be that.

Very strange not sure how to dismantle the trim to have a look behind the sill to check bit weird as since the noise started the car wont run as it should ..

Cheers

Matt

1schoir Member

1schoir

Posted
Posted
Hi mate i thought it was the fuel pump to, the buzzing is continuous if the engines running or not , the car has electric seats but the sound is coming from under the bonnet & boot catch so wouldnt of thought it would be that.

Very strange not sure how to dismantle the trim to have a look behind the sill to check bit weird as since the noise started the car wont run as it should ..

Cheers

Matt

Matt:

Removing that trim is fairly straightforward. Do a search in this forum using the words "hood latch" or "hood locked" and you will find instructions.

Regards, Maurice.

Stefan Member

Stefan

Posted
Posted

Is the sound is coming from the engine compartment behind the seats?

If so, you can remove the engine access panel behind the seats and perhaps pinpoint the problem better.

The fuel pump is near the accelerator but on the other side of the firewall, in the fuel tank actually. It should run briefly to pressurize the system when you first turn on the ignition.

PORSCHE16V Member

PORSCHE16V

Posted
  • Author
Posted

"1schoir" .. Cheers mate thanks for that ill have a look for that .. nice 1

"Stefan" .. Hi mate the sound is comin from the under the bonnet & boot pull inside the car by the side of the drivers seat cars Uk RHD . you can actuall feel it vibrating when you touch the trim ..

Thanks

Matt

PORSCHE16V Member

PORSCHE16V

Posted
  • Author
Posted

hello all i have checked the fuses & when i was checking pulled a fuse out of row C fuse 3 which is for the Central locking/alarm system power windows & inside lights then the noise stops . car still doesnt run correctly with fuse out .

Does anybody know whats located under the trim of the bonnet & boot lever ?

Thanks

Matt

juniinc Member

juniinc

Posted
Posted (edited)

just not used to UK terms(boot catch?), LOL

It's coming from your arlarm module

dont even mess with the hood release!

Edited by juniinc
juniinc Member

juniinc

Posted
Posted (edited)

sorry to tell U,but it is your alarm control module!

U think its coming from the hood release lever, because M535 is located right next to it(a few inches apart)!

OK Loren I fixed it.

Edited by juniinc
juniinc Member

juniinc

Posted
Posted

I'm not sure if ur asking or telling but

Nope, alarm module is pretty big it will never fit under the lever, under the seat.

thanks mate cheers for that , so the alarm control module is located under the lever which you open the boot & bonnet

Thanks

Matt

1schoir Member

1schoir

Posted
Posted
thanks mate cheers for that , so the alarm control module is located under the lever which you open the boot & bonnet

Thanks

Matt

Matt:

Here is a photo of the central alarm control module:

post-6627-1200096085_thumb.jpg

Note that the seat has been removed for this photo, and for reference, you can see the two levers at the bottom of the photo. (Click on the photo to blow it up).

On U.S. cars it is located under the left seat. Since you say that the buzzing is near the two latches that release the front hood ("bonnet") and the rear trunk lid ("boot"), then it is probably under the right seat. If you don't see it there, check under the left seat.

Regards, Maurice.

juniinc Member

juniinc

Posted
Posted

If u are removing the seat, try not to unplug the wiring hardness.

u should have enough wire slack to rest your seat out side.

  • Moderators
RFM Member

RFM

Posted
  • Moderators
Posted

The lever lock electro motor is located under the trim.

PORSCHE16V Member

PORSCHE16V

Posted
  • Author
Posted

RFM , Hi mate thanks for that think you know what im on about the buzzings coming from under the trim .

where you pull the lever in the car to open the bonnet/boot .

What does this control i.e does it control anything to do with the engine as its not running as it shoul since this started making the noise ,

Checked all fuses this morning all are fine took it to the petrol to see if was anything to do with the fuel .

Didnt drive so well was lack of power & trying to cut out ,

The buzzing noise had gone on the start of the journey but as i was putting car back on the drive noise started up again but went off preety much straight away , Im able to to keep the battery on now as the noise isnt there now when cars not running.

Thanks

Matt

  • Admin
Loren Member

Loren

Posted
  • Admin
Posted

RFM is referring to the two solenoids that lock the front and rear latches when you lock the car.

I guess if one of these solenoids is bad it might make a buzzing sound.

  • Moderators
RFM Member

RFM

Posted
  • Moderators
Posted
RFM , Hi mate thanks for that think you know what im on about the buzzings coming from under the trim .

where you pull the lever in the car to open the bonnet/boot .

What does this control i.e does it control anything to do with the engine as its not running as it shoul since this started making the noise ,

Checked all fuses this morning all are fine took it to the petrol to see if was anything to do with the fuel .

Didnt drive so well was lack of power & trying to cut out ,

The buzzing noise had gone on the start of the journey but as i was putting car back on the drive noise started up again but went off preety much straight away , Im able to to keep the battery on now as the noise isnt there now when cars not running.

Thanks

Matt

Do you have battery troubles than. Bad battery's can hive you odd things like buzzing electrovalves and bad working engines, check this out befor you strip the car.

PORSCHE16V Member

PORSCHE16V

Posted
  • Author
Posted

Hi mate the battery has been fine but could do with checking it like you say before stripping car , not sure the best way to check though as i cant take to a garage ..

All lights on dash are bright & starts first time just doesnt want to stay running on its own ..

Might clean the MAF sensor tommorow to see if that helps as well going to be a busy day !! .. Just have to be carefull with my plastic window with this cold weather we have round here dont want to crack it again ...

Thanks

Matt

PORSCHE16V Member

PORSCHE16V

Posted
  • Author
Posted

Hello all just an update on the problem im having ...

checked all plugs & that yesterday noticed 2 coils have split so replacing them with some new plugs tommorow see if this helps .. will the split in the coil effect the way it runs ????

Also going to check the alarm module under the seat as the central locking hasnt bee working for a while off the key & apparently theres a fuse in the box which may of blown so gona check that tonight .. will this effect the way the car runs, please could you tell us which seat the module is under RHD uk car..

Thanks all for your help much appreciated

Matt

Popolou Member

Popolou

Posted
Posted

Could you have had any water ingress which normally settles under the seats? This all sounds eerily like the components may have had a swim recently.

Pop

  • Moderators
RFM Member

RFM

Posted
  • Moderators
Posted

I suggest to replace all the coils for a good working engine regardless the other problems. Do what Pop recommend in his post to start with.

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