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[chrispin]

Hi
Car Omega 2.5 V6 petrol Auto 121,000

I was traveling home yesterday evening and just after passing junction 7 on the M25 doing 70 with cruise control on the engine management light came on the the car started to slow i pressed the accelorator and not alot it juddered like it was miss firing. The car continued to slow the car had been runing perfectly giving me 30+ mpg all the way from Birmingham which was the return journey i had done in the morning

I pulled over to the hard shoulder and the car stalled I swithched off popped the bonnet no smells or obvious problems looked under the car no fluid or leaks dripping
I got back in the car and turned the key to start the engine and the Starter motor just span freely did not turn the engine over

Rang the AA they came out and said Oh that does not sound very healthy !! he popped the bolt off the cam cover which showed the top of the belt asked me to turn the key and said the belt did move suggested that the cam belt had snapped

I heard no noise bang or rattle the EML came on and car stopped

I have the codes but cant find the list 
12
135
94
73
31
12

Any help much appreciated inc any info that relates to costs of repair links to parts and mechanics close to me in Tunbidge wells Kent

Thanks

Chris

[dad1uk]

Here's the codes:
http://www.omegaowners.com/forum/YaBB.pl?num=1160152416/0

Sorry I'm not clever enough to help with advice, but I'm sure someone will be along soon....

[Lazydocker]

Hi
Car Omega 2.5 V6 petrol Auto 121,000

I was traveling home yesterday evening and just after passing junction 7 on the M25 doing 70 with cruise control on the engine management light came on the the car started to slow i pressed the accelorator and not alot it juddered like it was miss firing. The car continued to slow the car had been runing perfectly giving me 30+ mpg all the way from Birmingham which was the return journey i had done in the morning

I pulled over to the hard shoulder and the car stalled I swithched off popped the bonnet no smells or obvious problems looked under the car no fluid or leaks dripping
I got back in the car and turned the key to start the engine and the Starter motor just span freely did not turn the engine over

Rang the AA they came out and said Oh that does not sound very healthy !! he popped the bolt off the cam cover which showed the top of the belt asked me to turn the key and said the belt did move suggested that the cam belt had snapped

I heard no noise bang or rattle the EML came on and car stopped

I have the codes but cant find the list 
12
135
94
73
31
12

Any help much appreciated inc any info that relates to costs of repair links to parts and mechanics close to me in Tunbidge wells Kent

Thanks

Chris

If the belt moved then it's not broken

[Varche]

Hi

You don't say what year your car is but I think the codes are for a Motronic 2.8.2 from memory. I am fairly sure that the codes are in the maintenance guides on the forum under paperclippedal trick.http://www.omegaowners.com/forum/YaBB.pl?num=1160152416/0

Wild guess crank sensor.

I don't know what the problem is with your starter motor but if it is just spinning and not engaging with the engine then the cambelt won't be turning either.

[chrispin]

Hi
Car Omega 2.5 V6 petrol Auto 121,000

I was traveling home yesterday evening and just after passing junction 7 on the M25 doing 70 with cruise control on the engine management light came on the the car started to slow i pressed the accelorator and not alot it juddered like it was miss firing. The car continued to slow the car had been runing perfectly giving me 30+ mpg all the way from Birmingham which was the return journey i had done in the morning

I pulled over to the hard shoulder and the car stalled I swithched off popped the bonnet no smells or obvious problems looked under the car no fluid or leaks dripping
I got back in the car and turned the key to start the engine and the Starter motor just span freely did not turn the engine over

Rang the AA they came out and said Oh that does not sound very healthy !! he popped the bolt off the cam cover which showed the top of the belt asked me to turn the key and said the belt did move suggested that the cam belt had snapped

I heard no noise bang or rattle the EML came on and car stopped

I have the codes but cant find the list 
12
135
94
73
31
12

Any help much appreciated inc any info that relates to costs of repair links to parts and mechanics close to me in Tunbidge wells Kent

Thanks

Chris

If the belt moved then it's not broken

He said it only twitched ? in a seconds worth of spinning ? the starter but i have not looked for myself

Thanks

Varche
The car is a V reg 1999 mini facelift
Thanks for the codes
12 Start
135 Telltale (Checklight) Voltage Low
94 Hall Sensor Voltage High
73 Mass Air Flow Sensor Voltage Low ( this was there already when i did the paperclip test a month ago )
31 No Engine RPM Signal ( this is normal )
12 Finish

[Lazydocker]

If it twitched then you need to get the cover right off before condemning the belt, although it does sound possible

Of course, it could also have twitched because the started isn't engaging properly and just caught enough to "twitch" the crank shaft

Cover off before condemning it unless you can see the crankshaft pulley spinning and the belt not

I'm sure the AA Man could but it wouldn't be the first time the AA have mis-diagnosed something

[Bent valve]

I wouldnt have thought it was possible to just remove a bolt to expose the belt without riving and distorting the cover considerably

[Lazydocker]

I wouldnt have thought it was possible to just remove a bolt to expose the belt without riving and distorting the cover considerably

Sure it would be... They're more flexible than you think and all you need is a tiny gap to look through with a torch... I used to do it all the time when on the road to confirm my worst suspicions

[chrispin]

He was not an AA mechanic but a stand in from a company called kavenagh because of the time 3am app AA mechanics dont work between 3 and 6 am so the motorway recovery man said

He undid the small bolt on the front made a small gap in the top of the driverside V using a tourch to look through the cover to see the top of the belt

Why would the engine just die like that if it was the starter motor ? and if not the Cam what cud it be I had driven 140 miles already

What happens if the Cam belt snaps normally as i said no rattling banging or odd noises just silence ! and when i pressed the accelorator peddle it kept going but no acceloration and had a vague sound of a missfire effect and it continued to slow 

I was driving and then the EML came on the car lost power and came to a stop the car was in D and continued to move very slowly along the hard shoulder when the engine cut out the car was still moving in D ??

Oh and i checked the service logs the Cam was done at 100.000 and its now on 121.000 the car had only done 2000 miles in the year before i got it as the owner was working abroad New breaks and service air fuel and oil new battery anti role bar links and a small weld passed the MOT
Thanks
Chris

[Lazydocker]

Like I said Chris, it does sound like the most likely outcome of the further investigation

When was the Cam Belt Kit last changed?

All we're saying is that you need to pull the cover off before accepting that you've got a load of bent valves

It could, after all, be a simple sensor failed and the starter isn't engaging

Although, I fear, unlikely

[Entwood]

IMHO there is insufficient info for any even "educated" guesswork ..

If the cambelt had failed at 70 mph ... I'm certain you would have heard the god forsaken racket as the pistons chewed the valves .. you don't mention any noise at all ...

The cambelt has nothing to do with the starter motor, if the starter was turning the engine with no cambelt .. you would still hear the pistons talking to the valves ..

It is more likely, as you heard no noise .. to be a failure that has caused either a loss of spark or a loss of fuel.

IMHO the starter motor sounds like a secondary fault .... unless the flywheel has become detached !!

First thing is to properly remove bits to examine the cam belt. Then check why the starter is not turning the engine.

Once those are sorted proper diagnostics can begin ...

[chrispin]

I was driving and then the EML came on the car lost power and came to a stop the car was in D and continued to move very slowly along the hard shoulder when the engine cut out the car was still moving in D ??

Oh and i checked the service logs the Cam was done at 100.000 and its now on 121.000 the car had only done 2000 miles in the year before i got it as the owner was working abroad New breaks and service air fuel and oil new battery anti role bar links and a small weld passed the MOT

The stater just spins making  slight tinking noise as it does but certainly does not turn the crank and makes no rattling noises like you suggest from kissing valves

Detached flywheel never heard of that one but sounds expensive !!!

Thanks
Chris

[Entwood]

I was driving and then the EML came on the car lost power and came to a stop the car was in D and continued to move very slowly along the hard shoulder when the engine cut out the car was still moving in D ??

Oh and i checked the service logs the Cam was done at 100.000 and its now on 121.000 the car had only done 2000 miles in the year before i got it as the owner was working abroad New breaks and service air fuel and oil new battery anti role bar links and a small weld passed the MOT

The stater just spins making  slight tinking noise as it does but certainly does not turn the crank and makes no rattling noises like you suggest from kissing valves

Detached flywheel never heard of that one but sounds expensive !!!

Thanks
Chris

That was a tad "tongue in cheek" ... as its the only link I can think of between the starter not turning the engine .. and the engine not turning the wheels !!!

[Lazydocker]

I was driving and then the EML came on the car lost power and came to a stop the car was in D and continued to move very slowly along the hard shoulder when the engine cut out the car was still moving in D ??

Oh and i checked the service logs the Cam was done at 100.000 and its now on 121.000 the car had only done 2000 miles in the year before i got it as the owner was working abroad New breaks and service air fuel and oil new battery anti role bar links and a small weld passed the MOT

The stater just spins making  slight tinking noise as it does but certainly does not turn the crank and makes no rattling noises like you suggest from kissing valves

Detached flywheel never heard of that one but sounds expensive !!!

Thanks
Chris

You say it doesn't turn the crank... Is this known because you've observed the crankshaft pulley staying still whilst the starter is engaged? If so then that's a positive sign as it means the belt is most likely fine

If you're just judging it by sound, do as I've suggested... Get someone to crank it while you observe the Crankshaft Pulley

[Chris_H]

When you say it doesn't turn the crank have you looked?  Engines spin quite fast and easy with no compression.