Whining noise linked to RPM

[$w!ft]

Hi guys,

Can anyone confirm this noise on their car?

It was not apparent a few days ago on mine, maybe something linked to the recent cold weather kicked it in?

It is a whining noise, similar to a pump, linked to the engine RPM, (doesn't matter if in gear or not)

Short video, you have to listen carefully but you can hear it whining up and down

[shane@mbtech]

Is radio on?

Sounds like interference, heard it on a few cars before now with bad radio wiring install.

Is it in the cabin?

[philo]

Altenator it's sounds to me,only a guess

[philo]

Originally Posted by lawsy

Is radio on?

Sounds like interference, heard it on a few cars before now with bad radio wiring install.

Is it in the cabin?

Same as I thought,needs suppressor in line,had this lots with old cars with upgraded hifi over the years,alternator noise through stereo.....if I recall

[shimmy]

kep an eye out for the alt red light....then you have circa 70 miles to dead battery

[$w!ft]

Originally Posted by philo

Same as I thought,needs suppressor in line,had this lots with old cars with upgraded hifi over the years,alternator noise through stereo.....if I recall

no radio on, no a/c on.

I do have aftermarket hifi speakers with subwoofer and amps. Could be background coming through as you said philo.

It didn't do it today. Very strange. Replaced the alternator about a year and a half ago I think... would be surprised for it to go out again!

[$w!ft]

well well well.... Alternator just died on me today. Left me standing on chelsea embankment for almost 2 hours. Lucky it didn't happen on the bridge. Guess the prognosis was correct!

I all of a sudden got red battery light and 5 mins later it was gone.

Wonder what courtesy car ill get.

[glendog74]

Originally Posted by $w!ft

well well well.... Alternator just died on me today. Left me standing on chelsea embankment for almost 2 hours. Lucky it didn't happen on the bridge. Guess the prognosis was correct!

I all of a sudden got red battery light and 5 mins later it was gone.

Wonder what courtesy car ill get.

Doh! I remember when mine let go - pants!

[shimmy]

Originally Posted by glendog74

Doh! I remember when mine let go - pants!

Luckily mine let go when an M tech was driving it after dong some warranty work, apparently.

[giraffe]

Originally Posted by shimmy

Luckily mine let go when an M tech was driving it after dong some warranty work, apparently.