Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Richard A on 06 April 2010, 18:04:33

Title: Strange Starting Problem !!!
Post by: Richard A on 06 April 2010, 18:04:33

So today Lee (Welung666) connected his 'box of tricks' to my 2.5 petrol Omega and---- nothing, no stored codes, no running problems, all normal.
Very grateful to Lee for his time and trouble (I will buy you that pint, or two).
So the problem continues, anything other than a hot engine requires a second turn of the key to start, any ideas please.
regards
richard a

Title: Re: Strange Starting Problem !!!
Post by: tunnie on 06 April 2010, 19:10:55

not seen previous threads, decent spark plugs in there which are newish?

Title: Re: Strange Starting Problem !!!
Post by: Richard A on 06 April 2010, 20:37:06

Changed at the same time the problem started 2rd Jan 2010 at 170k, same time as 6 new NKG Irdium plugs, new cam belt set, aux belt, new aux pulley, fuel filter. Since then new HT leads, 2 oil & filter changes, pollen and air filters.
Now 179k and new MOT last week, yes 9k in 3 months so must be something 'simple' - !! please  ;)
regards
richard a

Title: Re: Strange Starting Problem !!!
Post by: MutantCav on 07 April 2010, 13:20:34

Its a cranking issue so I would personally say that as all the other potential issues have been done recently its quite possibly first signs of crank shaft sensor on its way out... may have been disturbed when the work was done perhaps

Title: Re: Strange Starting Problem !!!
Post by: Sixstring on 07 April 2010, 13:27:07

Totally agree, Chris....would change that straight away.
Asked a few car buddies of mine here when I read the thread, to a man they all said "crank sensor breakdown...."
Is it too dear to eliminate by changing it?
Can always sell it/keep as spare?

Mike.

Title: Re: Strange Starting Problem !!!
Post by: statuskev on 07 April 2010, 17:01:22

Had the same problem with a v6 vectra. that was crankshaft sensor

Title: Re: Strange Starting Problem !!!
Post by: Richard A on 07 April 2010, 20:37:23

Gents I would agree, changed two, first at 117k in May 2007 then again at 158k July 2009, both from Vauxhall dealer, maybe due for another !
You may be correct but this fault feels different.
The problem gets worse the longer the engine is left not running, could it be heat related ??  !!
320 mile today, never missed a beat.
regards
richard a

Title: Re: Strange Starting Problem !!!
Post by: Welung666 on 07 April 2010, 20:39:13

Quote

Gents I would agree, changed two, first at 117k in May 2007 then again at 158k July 2009, both from Vauxhall dealer, maybe due for another !
You may be correct but this fault feels different.
The problem gets worse the longer the engine is left not running, could it be heat related ??  !!
320 mile today, never missed a beat.
regards
richard a

Depends, which way was the wiring run?

Title: Re: Strange Starting Problem !!!
Post by: Richard A on 07 April 2010, 21:38:54

Hi Lee, from sensor up around the oil filter and away from the exhaust to the 'power steering fluid bottle', cable tied the cable away from 'heat' and 'air-con' tube-cold.
Is this the correct way, am I missing something, any help, thanks.
regards
richard a

Title: Re: Strange Starting Problem !!!
Post by: Welung666 on 08 April 2010, 07:30:35

No, that's the way I cable them aswell. I'll have a look when I get home to see if I can find the resistance readings for a crank sensor.