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Author Topic: Omega Cuts Out...  (Read 1984 times)

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thegasgranny

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Omega Cuts Out...
« on: 04 February 2008, 15:40:23 »
Hello!

I've been trying to sort this problem out now since before Christmas.

Basically, it starts, and drives, but then cuts out after about 15mins. Then it'll start up again - normally without a problem.

I've had two auto electrians look at it and they have tested just about everything - I've even had the ECU sent away and it tested OK.

Could this be a dodgey crank sensor which cured the problem for two weeks before it started happing again?

Has anyone got any suggestions?

It's for sale in it's current state if anyone is interested.

Cheers.

TGG.
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omega18

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Re: Omega Cuts Out...
« Reply #1 on: 04 February 2008, 15:44:00 »
Have you tried cleaning out the throttle body, breathers and IACV? As these are a big cause of cutting out and rough idling.

HTH Karl
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Dazzler

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Re: Omega Cuts Out...
« Reply #2 on: 04 February 2008, 15:49:04 »
As said try having the IACV cleaned and relubed first.
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thegasgranny

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Re: Omega Cuts Out...
« Reply #3 on: 04 February 2008, 15:49:42 »
Thanks for the quick reply!

It's had a new IACV not 12 months ago and it's probably only done about 1000miles. (maybe 18months ago but my parents didn't do allot of miles in it.)

Which breathers do I need to check? It's a 2.0ltr 2001 GLS.

Cheers HTH Karl
« Last Edit: 04 February 2008, 15:51:14 by thegasgranny »
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Dazzler

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Re: Omega Cuts Out...
« Reply #4 on: 04 February 2008, 15:52:43 »
Was it a genuine crank sensor of a cheaper aftermarket one?
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Danny

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Re: Omega Cuts Out...
« Reply #5 on: 04 February 2008, 16:03:28 »
check and clean all breather pipes
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thegasgranny

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Re: Omega Cuts Out...
« Reply #6 on: 04 February 2008, 16:11:34 »
It was a genuine crank sensor.

what's the best way to clean to breather pipes?

Cheers

TGG.
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Danny

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Re: Omega Cuts Out...
« Reply #7 on: 04 February 2008, 16:15:12 »
Quote
It was a genuine crank sensor.

what's the best way to clean to breather pipes?

Cheers

TGG.

flush out quite a few times with carb cleaner. never done it myself but i think there might be "how to" guides in the "maintainence" section of the forum
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thegasgranny

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Re: Omega Cuts Out...
« Reply #8 on: 04 February 2008, 16:33:43 »
Cheers Danny. I'll give it a go tonight.
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jules

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Re: Omega Cuts Out...
« Reply #9 on: 04 February 2008, 17:58:55 »
I had an old Sierra 4x4 that did the very same thing.

Pauses for 5 minutes whilst he reminices  :y

It was the fuel filter.

Replaced it and problem disappeared
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Hotel21 wrote 'Its doubtfull in the extreme if it is the head gasket at fault.  If it were burning 5 litres per week the car would leave a smokescreen behind it!'

arthill

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Re: Omega Cuts Out...
« Reply #10 on: 04 February 2008, 18:29:38 »
you said it was fine after fitting new crank sensor, then prob. returned, someone may know of a fault that might affect it. Have you had codes read?
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John

thegasgranny

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Re: Omega Cuts Out...
« Reply #11 on: 04 February 2008, 19:36:42 »
yep thers no codes stored in the ECU. Even had it on a tech2
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jules

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Re: Omega Cuts Out...
« Reply #12 on: 05 February 2008, 10:09:07 »
Quote
yep thers no codes stored in the ECU. Even had it on a tech2


when did you last change the fuel filter ?
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Hotel21 wrote 'Its doubtfull in the extreme if it is the head gasket at fault.  If it were burning 5 litres per week the car would leave a smokescreen behind it!'

Martin_1962

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Re: Omega Cuts Out...
« Reply #13 on: 05 February 2008, 12:21:38 »
Does this happen at idle or under load?

Have you given it a thrash?

Have you cleaned the breather hole underneath the throttle body?

Any kinked fuel pipes?

Fuel filter?
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haj

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Re: Omega Cuts Out...
« Reply #14 on: 05 February 2008, 13:16:05 »
In the maintenance guide section look up Grumpy's how to clean IACV and breathers,it is a great help.
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