Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: woods1964 on 24 October 2009, 15:33:41

Title: noise from near engine
Post by: woods1964 on 24 October 2009, 15:33:41

hi i have a r reg vauxhall omega 2.5 v6 and all of a sudden i have noticed a whirling sound coming from the drivers side engine area it starts off loud then decresses when the car has warmed up and the revs go down but never goes away does any body no what this could be

Title: Re: noise from near engine
Post by: tunnie on 24 October 2009, 15:36:01

sounds like secondary air injection pump, you can unplug it, its not really needed.

Title: Re: noise from near engine
Post by: woods1964 on 24 October 2009, 15:39:31

sorry not good with cars how do i do that and what do i disconnect

Title: Re: noise from near engine
Post by: tunnie on 24 October 2009, 15:48:09

either unplug the 50amp fuse that supplies it, or unplug it from the engine bay:

(http://i127.photobucket.com/albums/p131/Angeleyed200is/09062009076.jpg)

Title: Re: noise from near engine
Post by: woods1964 on 24 October 2009, 16:04:15

no that did not work as you look at the engine from the front it is coming from the left hand side of the engine

Title: Re: noise from near engine
Post by: Bent valve on 24 October 2009, 16:41:27

It could be the alternator or the aux belt tensioner. Remove the belt and run the engine briefly to see if the noise goes.

Title: Re: noise from near engine
Post by: tunnie on 24 October 2009, 17:20:01

spray the Aux belt with a small amount of WD40 to rule out that as the noise, then listen carefully for any unit making a noise (aircon pump / alternator / tensioner)