Omega Owners Forum

Chat Area => General Discussion Area => Topic started by: smoothomega on 26 January 2008, 20:43:27

Title: Advice on a misfiring V6 vectra
Post by: smoothomega on 26 January 2008, 20:43:27
Just been given a V6 sri vectra that has done 77,000 miles but has a misfire. Not yet had time to look at it but wonder if anyone may have any ideas as to what it may be? I don't intend to spend too much on it and will scrap or break it if it ain't a cheap fix. So any ideas, has any one had a similar problem?
All help and advice muh appriciated
Cheers, Jez
Title: Re: Advice on a misfiring V6 vectra
Post by: Dazzler on 26 January 2008, 20:53:26
normal- plugs,leads, dis pack..
Title: Re: Advice on a misfiring V6 vectra
Post by: albitz on 26 January 2008, 20:54:58
check the sparkplug wells for oil. if there is oil in there then the cam cover gaskets are leaking because the breathers are blocked.this affects the plugs,then the plug leads,then the dis unit(coil pack).this is the most common cause of misfiring on the v6 engine.if this is the problem it isnt that difficult or expensive to fix.there are maintenance guides on the forum which will be of great help if you want to diy. :y
Title: Re: Advice on a misfiring V6 vectra
Post by: albitz on 26 January 2008, 20:57:08
oops!assumed i was talking to a newbie ,just noticed you are a senior so you would probably know all that stuff anyway ;D :-[
Title: Re: Advice on a misfiring V6 vectra
Post by: TheBoy on 26 January 2008, 20:58:11
Quote
check the sparkplug wells for oil. if there is oil in there then the cam cover gaskets are leaking because the breathers are blocked.this affects the plugs,then the plug leads,then the dis unit(coil pack).this is the most common cause of misfiring on the v6 engine.if this is the problem it isnt that difficult or expensive to fix.there are maintenance guides on the forum which will be of great help if you want to diy. :y
vectras tend not to leak from cam covers.


last misfire on a v6 veccy, I just changed plugs, leads, and dis. Couldn't be arsed to faff about.  No codes on paperclip test, so likely ht.
Title: Re: Advice on a misfiring V6 vectra
Post by: smoothomega on 26 January 2008, 21:01:04
Quote
oops!assumed i was talking to a newbie ,just noticed you are a senior so you would probably know all that stuff anyway ;D :-[


Yep just done the cam cover gaskets on my miggy  :y ust no had time to look at the veccy yet, it was dark when i got it bck so will take a good look tommorow. Thanks all the same  :y
Title: Re: Advice on a misfiring V6 vectra
Post by: smoothomega on 26 January 2008, 21:02:59
That was going to be my first line of fire TB. BTW, do those nice alloy cam covers fit the miggy  :question
Title: Re: Advice on a misfiring V6 vectra
Post by: albitz on 26 January 2008, 21:03:10
next time you know someone who is giving a 77000 mile vectra away can you tell them to give it to me ,as youve already got one. ;D :y
Title: Re: Advice on a misfiring V6 vectra
Post by: smoothomega on 26 January 2008, 21:07:04
Quote
next time you know someone who is giving a 77000 mile vectra away can you tell them to give it to me ,as youve already got one. ;D :y

Will bear you in mind  :y ;D ;D ;D ::)
Title: Re: Advice on a misfiring V6 vectra
Post by: Dazzler on 26 January 2008, 21:08:53
Quote
That was going to be my first line of fire TB. BTW, do those nice alloy cam covers fit the miggy  :question
yes they do, its just you will need to fill the oil up with a long flexi necked funnel
Title: Re: Advice on a misfiring V6 vectra
Post by: TheBoy on 26 January 2008, 21:10:18
Quote
That was going to be my first line of fire TB. BTW, do those nice alloy cam covers fit the miggy  :question
sort of. oil filler in wrong place.  Also, because they dont leak, the pressure built up when breathers blocked (main reason Omega ones fail) blows out more vital seals ;)
Title: Re: Advice on a misfiring V6 vectra
Post by: Elite Pete on 26 January 2008, 21:11:47
My brother in law has a 99 V6 Manual CDX Vectra Estate with about 50,000 miles and full leather thats been sat on his drive for about 3 years because it failed it MOT on discs and pads and he wont part with it. Its just sitting there covered in bird kack and tree sap :'(
Title: Re: Advice on a misfiring V6 vectra
Post by: albitz on 26 January 2008, 21:14:15
a sensible fella then ;D
Title: Re: Advice on a misfiring V6 vectra
Post by: Markie on 26 January 2008, 21:15:47
What year is it - like omegas they went DBW 2002 ish.....rulling a few thing in or out... Also cam covers will be fine  :y
Title: Re: Advice on a misfiring V6 vectra
Post by: smoothomega on 27 January 2008, 17:11:56
Year 1998, Cam covers will go on miggy if i dont sort veccy  :y