Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: M-Tek Performance on 17 September 2007, 12:03:36

Title: Poor starting when low fuel on 2.5TD
Post by: M-Tek Performance on 17 September 2007, 12:03:36
Has anyone ever found a cure for this?

its fine when there is over 20 litres of diesel in the car..
Title: Re: Poor starting when low fuel on 2.5TD
Post by: Pitchfork on 17 September 2007, 13:57:37
Yes
Replace the priming pump in the fuel tank (submergable)
Costs about £120 & is not the same as the petrol type I think you'll find
There are a couple of earlier threads if you search for them
IW
Title: Re: Poor starting when low fuel on 2.5TD
Post by: M-Tek Performance on 17 September 2007, 14:00:07
Quote
Yes
Replace the priming pump in the fuel tank (submergable)
Costs about £120 & is not the same as the petrol type I think you'll find
There are a couple of earlier threads if you search for them
IW

That was done and made no difference..
Title: Re: Poor starting when low fuel on 2.5TD
Post by: Pitchfork on 17 September 2007, 14:05:39
Worked for mine so I guess we need TB's undoubted wisdom on the issue
IW
Title: Re: Poor starting when low fuel on 2.5TD
Post by: RonaldMcBurger on 17 September 2007, 16:53:02
All 3 TD's I have had did this. Less than 20-25 litres and a pig to start, over that and no problem.
Title: Re: Poor starting when low fuel on 2.5TD
Post by: M-Tek Performance on 17 September 2007, 17:00:07
Quote
All 3 TD's I have had did this. Less than 20-25 litres and a pig to start, over that and no problem.

Its most annoying and such a common fault yet there seems no official line on a resolution!
Title: Re: Poor starting when low fuel on 2.5TD
Post by: Golfbuddy on 17 September 2007, 17:08:03
Er, just a thought. Have you spoken to Vauxhall to see what they have to say about it? I know it's probably a stupid idea but sometimes.........
Title: Re: Poor starting when low fuel on 2.5TD
Post by: M-Tek Performance on 17 September 2007, 17:16:29
Quote
Er, just a thought. Have you spoken to Vauxhall to see what they have to say about it? I know it's probably a stupid idea but sometimes.........

yes.

clueless.

spoken to all sorts of people..
Title: Re: Poor starting when low fuel on 2.5TD
Post by: MickAP on 17 September 2007, 18:16:32
Quote
Quote
All 3 TD's I have had did this. Less than 20-25 litres and a pig to start, over that and no problem.

Its most annoying and such a common fault yet there seems no official line on a resolution!

Never had this problem, and sometimes let it get down to the low fuel warning light coming on before refueling.

Mick
Title: Re: Poor starting when low fuel on 2.5TD
Post by: Pitchfork on 17 September 2007, 19:53:03
Quote
Quote
Quote
All 3 TD's I have had did this. Less than 20-25 litres and a pig to start, over that and no problem.

Its most annoying and such a common fault yet there seems no official line on a resolution!

Never had this problem, and sometimes let it get down to the low fuel warning light coming on before refueling.

Mick
Neither have I since changing the tank pump. Sometimes it just runs on the smell!
IW
Title: Re: Poor starting when low fuel on 2.5TD
Post by: wombatcurry on 17 September 2007, 20:55:29
My 97 did this - I replaced the injector leak-off pipes because they were rotten & the problem improved (didn't disappear totally). My 2000 hasn't done it yet - and I have run it down to almost empty on a coupleof occasions.
Title: Re: Poor starting when low fuel on 2.5TD
Post by: coronaryman on 17 September 2007, 21:52:49
I have exactly the same problem.
Changed leak off pipes even put a none return valve
in the main feed to the filter so as to keep a head of diesel
but has made no difference to the poor starting below 20 litres.

Mike
Title: Re: Poor starting when low fuel on 2.5TD
Post by: TheBoy on 17 September 2007, 23:27:39
Mtek - check Fuse 18.  And relay that controls fuel pump.

Also, bleed the fuel filter, in case of air lock.
Title: Re: Poor starting when low fuel on 2.5TD
Post by: M-Tek Performance on 18 September 2007, 09:10:42
Im going to change the fuel filter - I'll check fuse 18!

thanks!
Title: Re: Poor starting when low fuel on 2.5TD
Post by: M-Tek Performance on 18 September 2007, 19:28:40
fuse 18 is fine...

need to change fuel filter.
Title: Re: Poor starting when low fuel on 2.5TD
Post by: TheBoy on 18 September 2007, 20:04:52
Quote
fuse 18 is fine...

need to change fuel filter.
When you change it, check if it is 'full' of diesel - if not, that may be issue.  Whether its half empty is due to airlock of non finctioning pump we can work through later.

If filter is full, that would imply the lift pump has enough power to prime system...
Title: Re: Poor starting when low fuel on 2.5TD
Post by: M-Tek Performance on 18 September 2007, 20:07:55
ill get it done this weekend.

i hope my dad appreciates it LOL