Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Big_Al on 24 December 2013, 18:47:54

Title: Breakdown . . diagnosis needed
Post by: Big_Al on 24 December 2013, 18:47:54
Was talking with the Alarming Man just the other day about breakdowns  . . . .  now I've had one

Any ideas please . . .  this is what happened

Car has been running fine , starting on the button . The only problem has been the Airbag light has come back on. But this has only happened since I buggered about swapping seats a few weeks ago though.

Took SWMBO to her xmas bash the other night , only a 4 mile trip . But noticed that the TC light  had come on , also the radio turned itself on  while on this journey .

Dropped SWMBO off , went and put some petrol in on way back , TC light stayed OFF after re starting the car though.

Drove back towards home , half mile from home car just cut out going around a roundabout and  all dash lights  came on . So just coasted off of roundabout a pulled up at side of road .

Car would turnover but would not start . tried several times over a 15 min period but would not start . Battery was now getting a bit low so left car locked up for the night.

Went to recover car next morning & it started first time & has been fine since .

No codes stored at all . . .    any ideas anyone ?  airbag light is still on as before but nothing else

Edit:  maybe i should have put this in electricals  :-\ :-\

Title: Re: Breakdown . . diagnosis needed
Post by: the alarming man on 24 December 2013, 19:06:20
cam sensor on the way out??
Title: Re: Breakdown . . diagnosis needed
Post by: tunnie on 24 December 2013, 19:22:35
More like crank sensor, do a pedal trick to be sure  :y
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 24 December 2013, 19:30:02
More like crank sensor, do a pedal trick to be sure :y

No codes on reader . . .but only a cheapy . .so will do a pedal trick to make sure  :y

Won't be tomorrow though ;D ;D ;D ;D
Title: Re: Breakdown . . diagnosis needed
Post by: Andy B on 24 December 2013, 19:43:18
....

Won't be tomorrow though ;D ;D ;D ;D

Why?  ::) ::) ::) ::)
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 24 December 2013, 19:53:31
More like crank sensor, do a pedal trick to be sure  :y


Does a dodgy crank sensor cause engine "cut out"  as well as difficult/non starting then ?

Also just checked service history . . . GM crank sensor replaced by VX dealer 35k ago  :-\
Title: Re: Breakdown . . diagnosis needed
Post by: tunnie on 24 December 2013, 19:57:18
More like crank sensor, do a pedal trick to be sure  :y


Does a dodgy crank sensor cause engine "cut out"  as well as difficult/non starting then ?

Also just checked service history . . . GM crank sensor replaced by VX dealer 35k ago  :-\

Yes. Exact symptoms, cuts out, will turn over fine but not fire. Left to cool for 30 mins say, will fire straight back up.
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 24 December 2013, 20:06:32
More like crank sensor, do a pedal trick to be sure  :y


Does a dodgy crank sensor cause engine "cut out"  as well as difficult/non starting then ?

Also just checked service history . . . GM crank sensor replaced by VX dealer 35k ago  :-\

Yes. Exact symptoms, cuts out, will turn over fine but not fire. Left to cool for 30 mins say, will fire straight back up.

thanks Tunnie  . .   I had the same thing happen a year ago  . .  . but it righted itself & been ok since .

New crank sensor will be ordered  ASAP . . .at least I will know it's a new one fitted then . ;)

Is AndyC still posting parts from bury St. Edmunds ? seem to recall there was a block on him posting out parts to us
Title: Re: Breakdown . . diagnosis needed
Post by: tunnie on 24 December 2013, 20:18:25
Sadly AndyC can no longer help us  :'(
Title: Re: Breakdown . . diagnosis needed
Post by: SMD on 24 December 2013, 20:29:39
Huh  :(  What did I miss?

Sorry to the OP for hijacking his thread
Title: Re: Breakdown . . diagnosis needed
Post by: tunnie on 24 December 2013, 20:47:11
Huh  :(  What did I miss?

Sorry to the OP for hijacking his thread

Not his choice, but he is no longer able to support any clubs.  :(
Title: Re: Breakdown . . diagnosis needed
Post by: 05omegav6 on 24 December 2013, 20:50:47
Huh  :(  What did I miss?

Sorry to the OP for hijacking his thread

Not his choice, but he is no longer able to support any clubs.  :(
Not all bad... I believe he also got promoted :-\
Title: Re: Breakdown . . diagnosis needed
Post by: SMD on 24 December 2013, 20:53:11
So what do people do for parts? ABS still going?
Title: Re: Breakdown . . diagnosis needed
Post by: Andy H on 24 December 2013, 20:55:04
Huh  :(  What did I miss?

Sorry to the OP for hijacking his thread
Vauxhall had a cull of dealers that could offer TradeClub.

I think Drive-BuryStEdmunds (where AndyC was assistant part manager) fell off the list.
Title: Re: Breakdown . . diagnosis needed
Post by: Andy H on 24 December 2013, 20:58:03
So what do people do for parts? ABS still going?
ABS membership still gives TradeClub discount at participating dealers.

The list of participating dealers is a lot shorter now though :(
Title: Re: Breakdown . . diagnosis needed
Post by: dbug on 24 December 2013, 21:39:41
More like crank sensor, do a pedal trick to be sure  :y


Does a dodgy crank sensor cause engine "cut out"  as well as difficult/non starting then ?

Also just checked service history . . . GM crank sensor replaced by VX dealer 35k ago  :-\

Al - deffo classic symptoms of failed crank sensor (not cam sensor) - failed crank sensor doesn't always throw a fault code though ;)  best regards  ;)
Title: Re: Breakdown . . diagnosis needed
Post by: albitz on 24 December 2013, 22:06:48
Al - Ive got a known good one here you can borrow until you get a new one, if you can get up to see me at work tomorrow or Thurs. :y
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 24 December 2013, 22:08:44
Al - Ive got a known good one here you can borrow until you get a new one, if you can get up to see me at work tomorrow or Thurs. :y

PM sent albs ;)
Title: Re: Breakdown . . diagnosis needed
Post by: albitz on 24 December 2013, 22:57:08
Replied. :y
Title: Re: Breakdown . . diagnosis needed
Post by: TheBoy on 25 December 2013, 10:34:37
Soz, late to this thread  :-[

Certainly sounds the standard, classic symptoms of a crank sensor on a GM V6. This is why I *always* carry one in the boot (which is a slight lie, as only one of the Omegas has a crank sensor in the boot ;D).

If you reroute the cable, you can change it in about 5mins, in the dark, in the NEC carpark ::)...   ...as long as you have a jack
Title: Re: Breakdown . . diagnosis needed
Post by: albitz on 25 December 2013, 10:53:32
I have changed one without a jack (n/s wheel on a kerb) but I was a bit slimmer then.  :)
Title: Re: Breakdown . . diagnosis needed
Post by: TheBoy on 25 December 2013, 10:56:41
I have changed one without a jack (n/s wheel on a kerb) but I was a bit slimmer then.  :)
Yeah, I reckon with a non lowered car, and a decent kerb, its doable
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 25 December 2013, 13:16:13
I am thinking that maybe I should have the new crank sensor  ready . .  .

 but wait until I get the same problem again & then change it straight away  :-\ :-\

With suitable jack & tools carried at all times  ;) ;)

That way it should confirm it was the faulty crank sensor  . .  .  shouldn't it ? :-\ :-\

Also is there a pic anywhere of the recommended "new cable route " for the crank sensor ?

Had a quick search but could not come across anything

Am still worried about the TC light coming on ,the radio turning itself on & the date & time  in info display resetting to 1997 & 00:00

just before this "breakdown" though  ::) ::)  would that still be crank sensor related ?

Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 25 December 2013, 13:33:23
I am thinking that maybe I should have the new crank sensor  ready . .  .

 but wait until I get the same problem again & then change it straight away  :-\ :-\

With suitable jack & tools carried at all times  ;) ;)

That way it should confirm it was the faulty crank sensor  . .  .  shouldn't it ? :-\ :-\

Also is there a pic anywhere of the recommended "new cable route " for the crank sensor ?

Had a quick search but could not come across anything


Am still worried about the TC light coming on ,the radio turning itself on & the date & time  in info display resetting to 1997 & 00:00

just before this "breakdown" though  ::) ::)  would that still be crank sensor related ?


found the pictures for this now  :y :y
Title: Re: Breakdown . . diagnosis needed
Post by: Webby the Bear on 25 December 2013, 16:29:33
I'd just get it done because it's very random as to when it goes  :y
Title: Re: Breakdown . . diagnosis needed
Post by: the alarming man on 25 December 2013, 23:18:17
as webby says very random when they go do you really fancy changing one on the hard shoulder of the M1 :( ???
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 26 December 2013, 08:06:24
as webby says very random when they go do you really fancy changing one on the hard shoulder of the M1 :( ???

Good point Mark . . . but my reason for that approach is to prove it is a faulty CS. As this fault has not occured for year now until last week & once again the car is now starting on the button & running fine  :-\ :-\

But I will fit a new one before we head off to Burton though.  ;)
Title: Re: Breakdown . . diagnosis needed
Post by: TheBoy on 26 December 2013, 09:07:40
I can guarantee you it is likely to fail at the most inoppertune moment, in order to cause maximum embarrassment.

In my case, just outside Dijon, on the motorway. French law dictates you have to tell the authorities, who then arrange towing away, and you end up spending the night in a git miles from anywhere, and then...   ...oh, no, thats another story ;D

I'd highly recommend changing it at the first opportunity.
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 26 December 2013, 09:24:34
I can guarantee you it is likely to fail at the most inoppertune moment, in order to cause maximum embarrassment.

In my case, just outside Dijon, on the motorway. French law dictates you have to tell the authorities, who then arrange towing away, and you end up spending the night in a git miles from anywhere, and then...   ...oh, no, thats another story ;D

I'd highly recommend changing it at the first opportunity.



Will do then  . . . .   ;) ;)
Title: Re: Breakdown . . diagnosis needed
Post by: dbug on 26 December 2013, 14:18:21
Al the Elite you bought from me had a re-routed crank sensor on it - if your neighbour still has it you could have a nose at it ;)
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 26 December 2013, 16:17:24
Al the Elite you bought from me had a re-routed crank sensor on it - if your neighbour still has it you could have a nose at it ;)

I'll have a look colin  . . .cheers  :y
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 29 December 2013, 13:20:28
Car just cut out again  . . .luckily I was just a few yards from my drive on the way back ::) ::) ::)

Pedal trick shows 0335    this time  . .so crank sensor as most were saying  :y

New one already  on order  :y :y
Title: Re: Breakdown . . diagnosis needed
Post by: TheBoy on 29 December 2013, 13:55:54
As said earlier, now its home, try not to use until sensor replaced, as it will get you at the most inconvenient time...
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 29 December 2013, 14:04:21
As said earlier, now its home, try not to use until sensor replaced, as it will get you at the most inconvenient time...

Advice taken TB ;) ;)
Title: Re: Breakdown . . diagnosis needed
Post by: M Kerr on 30 December 2013, 15:29:19
Hello Al,

This is a bit late I'm afraid...

Agreed crank sensor replacement (at your convenience rather than random).  The one now on mine cam with loads of slack cable was was easy to select a route away from the exhaust and cable tie to other fixings.

The resetting of the system to 1997 sounds like you may have dislodged a live feed to the CPU, maybe when changings seats.  Maybe it won't happen again but sod's law probably applies if you don't check...
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 30 December 2013, 16:36:11
Hello Al,

This is a bit late I'm afraid...

Agreed crank sensor replacement (at your convenience rather than random).  The one now on mine cam with loads of slack cable was was easy to select a route away from the exhaust and cable tie to other fixings.

The resetting of the system to 1997 sounds like you may have dislodged a live feed to the CPU, maybe when changings seats.  Maybe it won't happen again but sod's law probably applies if you don't check...

not really had any feedback on that one

That was really weird . . .   clock was at 00:00   & date was  01:01:1997 when I left the car that night unable to start it . .  .next morning it

starts first time & date & time are back to being correct  . .  as said  . .  . weird  :o :o :o :o

Seat change over & back again  was weeks ago now  . .   still got the annoying "airbag" light on though. Hoping to get someone with a

Tech2 along to The  Red Barons   Burton weekend coming up 
Title: Re: Breakdown . . diagnosis needed
Post by: M Kerr on 30 December 2013, 16:51:17
very wierd Al,

I was going to try to come to Burton but rugby, football, orchestra and kick-boxing start for the New Year so i'm struggling for time(!!!!) again. ::)
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 30 December 2013, 17:19:22
very wierd Al,

I was going to try to come to Burton but rugby, football, orchestra and kick-boxing start for the New Year so i'm struggling for time(!!!!) again. ::)

PM sent  ;)
Title: Re: Breakdown . . diagnosis needed
Post by: bago on 30 December 2013, 18:34:20
date and time reste might be related by the radio if I remember correctly as the radio can set the date and time by some means of a signal it gets.
as you had a issue with the radio trning on by it self it could be related to that eveent
Title: Re: Breakdown . . diagnosis needed
Post by: Big_Al on 30 December 2013, 19:28:14
date and time reste might be related by the radio if I remember correctly as the radio can set the date and time by some means of a signal it gets.
as you had a issue with the radio trning on by it self it could be related to that eveent


hoping that it's all about the faulty crank sensor  causing weird & wacky goings on  ;D ;D. Replacement should be here by the weekend  . . .

 will post up what occurs once thats fitted  ;) ;)
Title: Re: Breakdown . . diagnosis needed
Post by: M Kerr on 30 December 2013, 20:36:57
Bingo Bago!

I have regularly (for various reasons) had my battery disconnected.  When reconnected the systen defaults to the manufacture date (or someting ages ago...).  I very often didn't bother to re-enter the radio code so would be January 1997 on my display until I reset BUT lately (yesterday) I straterd up and immediately entered the radio code. the RDS system automatically corrects the date and time!

Given this, Al's machine must be suffering some intermittent total loss of connection to the battery... I haven't tried but if you disconnect the battery with the engine running; does it stop?  Mabe these two items (radio/engine stop) are symptoms of a combined source.

Are all the battery connections and eartings good Al? :-\