Omega Owners Forum - Is it True ?

Explorer

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Is it True ?
26. Sep 2007 at 10:09

Hi every one ..

i have heard from one of my friend that omega can stop working while you driving

to make it clear , the engine stop working while u drive and the only thing that u can do is to try to stop the car safely

Is is true ?

if the ansewr is yes ... what causes that probleem ? and what is the best thing that we should do if that happened ?

THANX

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Dazzler Omega Baron Offline Drive it like you stole it...... Posts: 4459 Sutton, Surrey Gender: Drives: AMG C32 estate	Re: Is it True ? Reply #1 - 26. Sep 2007 at 10:13 I'm not quite sure what you are asking here Any car can stop working for various reasons whilst in motion..... Are you picking up on a crankshaft sensor failure, which has been on here a couple of times??? Please explain a little more.
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Explorer

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Re: Is it True ?
Reply #2 - 26. Sep 2007 at 10:25

i am relly asking is it possible for the omega to stop working while motion

some told me that the MAF sensor can cause this probleem

because actully , i have a probleem in my car and i am very afread from stop while motion

the probleem is happend rarly , but whenver i park the car to the park gear mode and i switch off the AC

the rpm start to rise up t0 800rpm(less that 1000rpm) and come back to the normal level within seconds

i have checked the car with the computer and every thing was very good and voltages of the sensores were also good

nothing strange happen happend while driving but i want to be sure that i am in the safe side

so,what happen to my car is it a probleem or not ?

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« Last Edit: 26. Sep 2007 at 10:53 by Explorer »

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Kevin Wood

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Re: Is it True ?
Reply #3 - 26. Sep 2007 at 10:35

It's normal for the revs to fluctuate as you remove load from the engine (as you take an auto box out of gear or turn off the air conditioning).

A failure of a key part in any car can cause it to stop suddenly and I wouldn't say the Omega is any more or less prone to it than any other car.

A MAF failure wouldn't cause this, as the engine management system has a strategy to deal with failure of this sensor. The main couse of problems, and a sensor which doesn't have any "limp home" strategy is the crank sensor on a V6. Even then, they give warning signs, such as troublesome starting and trouble codes before they fail suddenly in most cases.

If you want to be proactive against this, I would check your crank sensor to see if it has the original cable routing up with the oil cooler pipes. If so, the sensor is likely original and it's worth having a spare as the heat from the oil pipes will eventually cause the cable to break down. If the cable is routed up the side of the engine bay, this has likely been changed before and it should be reliable as long as the cable has been routed away from heat sources and secured properly.

Another thing you can do is check your engine for trouble codes regularly and change the sensor if any related codes appear (these do not appear to light the EML so you need to check for them with a code reader).

Kevin

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sounds2k

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Re: Is it True ?
Reply #4 - 26. Sep 2007 at 13:37

when the crank sensor (or more to the point, it's wiring) started going on my last omega, I had at least one instance where I was slowing down in traffic and as I came to a halt, so did the engine!! (it was an automatic) - it wouldn't start again straight away but was OK after a few seconds. After that it did become more difficult to start, in addition if you drove, parked up then started and left the engine idling, it would sometimes cut out - you could restart it again but sometimes only after a minute or two. Come to think of it, I think the engine management claimed there was a problem with the MAF sensor too.

Replacing the (crank) sensor cured all those problems.

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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: Is it True ? Reply #5 - 26. Sep 2007 at 14:00 i think he is refering to the crank sensor....
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Danny

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Re: Is it True ?
Reply #6 - 26. Sep 2007 at 14:30

Explorer wrote on 26. Sep 2007 at 10:09:

Hi every one ..

i have heard from one of my friend that omega can stop working while you driving

to make it clear , the engine stop working while u drive and the only thing that u can do is to try to stop the car safely

Is is true ?

if the ansewr is yes ... what causes that probleem ? and what is the best thing that we should do if that happened ?

THANX

but then pretty much any car can "die in motion"

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Paul M Omega Knight Offline Posts: 1689 Edinburgh Gender: Drives: BMW 840Ci, Yamaha R1	Re: Is it True ? Reply #7 - 26. Sep 2007 at 18:40 If you're worried about it change the crank sensor, that's about the only component I'm aware of that is likely to make the engine spontaneously stop rather than gradually lose power.
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TheBoy Administrator Offline TBE has an MOT! Posts: 64817 Brackley, Northants Gender: Drives: 98 MV6, 03 Elite, 00 25, 89 ZX10	Re: Is it True ? Reply #8 - 26. Sep 2007 at 18:44 is it only dieing at idle - if so, check idle control valve. Engine cutting at reasonable revs will most likely be crank sensor on V6
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nixoro Omega Baron Offline Posts: 3104 Hitchin, Herts Gender: Drives: 56 Plate - Zafira 1.6	Re: Is it True ? Reply #9 - 26. Sep 2007 at 18:48 I guess a car would die if the cambelt tensioner went something worth mentioning Thats another option but the problem does not seem as bad as this. Not intended to scare
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JamesV6CDX Ex Member Gender: Drives: 2002 (02) 3.2 Retail MV6 in Star Silver with Leather	Re: Is it True ? Reply #10 - 26. Sep 2007 at 22:33 TheBoy wrote on 26. Sep 2007 at 18:44: is it only dieing at idle - if so, check idle control valve. Engine cutting at reasonable revs will most likely be crank sensor on V6 Remember my Green Elite, was dying at junctions, only when you let the revs off? That turned out to be crank sensor...
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TheBoy

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Re: Is it True ?
Reply #11 - 27. Sep 2007 at 12:29

JamesV6CDX wrote on 26. Sep 2007 at 22:33:

TheBoy wrote on 26. Sep 2007 at 18:44:

is it only dieing at idle - if so, check idle control valve.

Engine cutting at reasonable revs will most likely be crank sensor on V6

Remember my Green Elite, was dying at junctions, only when you let the revs off? That turned out to be crank sensor...

yup, but more common for it to fail at any revs...

still, paperclip test will confirm if its crank sensor

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If you are going to kick a car, remember to wear appropriate footwear
Any posts are the result of my own views as a member of OOF, which may or may not be the same as my views as part of the Admin Team.

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davlad22

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Re: Is it True ?
Reply #12 - 27. Sep 2007 at 12:50

Explorer wrote on 26. Sep 2007 at 10:25:

whenver i park the car to the park gear mode and i switch off the AC the rpm start to rise up t0 800rpm(less that 1000rpm) and come back to the normal level within seconds

As said, this is normal in any car! Not in any way linked to your problem. It is actually a good thing and shows that your air conditioning is probably functioning correctly! The compressor which feeds the air conditioning draws a current from the electrical system which is charged by the moving engine. The slight fluctuation in engine revs will stabilise itself quickly.

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Markjay

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Re: Is it True ?
Reply #13 - 29. Sep 2007 at 22:53

davlad22 wrote on 27. Sep 2007 at 12:50:

Explorer wrote on 26. Sep 2007 at 10:25:

whenver i park the car to the park gear mode and i switch off the AC the rpm start to rise up t0 800rpm(less that 1000rpm) and come back to the normal level within seconds

As said, this is normal in any car! Not in any way linked to your problem. It is actually a good thing and shows that your air conditioning is probably functioning correctly! The compressor which feeds the air conditioning draws a current from the electrical system which is charged by the moving engine. The slight fluctuation in engine revs will stabilise itself quickly.

I agree - the Omega is not more likely to die while rolling than any other car out there, so there is no 'common' problem as such.

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Alas, no more Omegas....

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