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Yaris Engine Failure


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Hi All, my Yaris D4D engine blew up on the M53 motorway just after Christmas. Toyota inspected the vehicle and concluded that it had burned its own engine oil, a couple of weeks later I descovered this had happened to a fellow driving instructor on the same motorway same fault a month earlier. Has anyone else had the same problem?

Phil Marchbank

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Hi All, my Yaris D4D engine blew up on the M53 motorway just after Christmas. Toyota inspected the vehicle and concluded that it had burned its own engine oil, a couple of weeks later I descovered this had happened to a fellow driving instructor on the same motorway same fault a month earlier. Has anyone else had the same problem?

Phil Marchbank

didnt your oil warning light give warning.when did you last check oil level.

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Hi All, my Yaris D4D engine blew up on the M53 motorway just after Christmas. Toyota inspected the vehicle and concluded that it had burned its own engine oil, a couple of weeks later I descovered this had happened to a fellow driving instructor on the same motorway same fault a month earlier. Has anyone else had the same problem?

Phil Marchbank

didnt your oil warning light give warning.when did you last check oil level.

The car was serviced on 11.11.2010, as a driving instructor I check oil water and tyres on a weekly basis.No,the oil warning light did not come on.

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TOPIC MOVED.........To YARIS Forum

PLEASE DO NOT ASK QUESTIONS ABOUT YOUR CAR ON THE NEW MEMBERS INTRODUCTION FORUM!

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And your car is how old?

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Something doesn't sound right here, a regularly maintained car should not consume so much oil in such a short space of time, I can only think that for the engine to seize up so quickly is that there has been a sudden loss of pressure or oil (sump plug/oil filter unsrewed itself or a complete failure of the oil pump)which in any case would illuminate the oil pressure light.

Maybe you didn't notice the light in time....

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It doesnt say what the failure was. 'Blew up' isnt really a technical term lol.

Did the oil leak internally and fill the bores? Lose all oil and score/sieze the shells?

Mart.

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Has the garage been able to estabish why the engine oil lost so quickly - was it an external leak or internal problem??

I have seen such scenarios on turbo engines whereby the turbo seals fail and the engine ingests it's own lube oil.

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Has the garage been able to estabish why the engine oil lost so quickly - was it an external leak or internal problem??

I have seen such scenarios on turbo engines whereby the turbo seals fail and the engine ingests it's own lube oil.

This is what i suspect has happened - seen it before.

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if the oil was lost that quick through a turbo failure, thete would have been a lot of exhaust smoke.

and as the owner is a driving instrutor who would advise trainee to use his rear view mirror constantly,he would do so himself,and should noticed the problem.

does his car have optitron type instruments if so oil warning would have included a buzzer warning.

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Unfortunately when a diesel consumes its own oil it goes into self destruct mode. It's almost impossible to stop the motor and even turning off the ignition circuit doesn't work. My next door neighbour had this on an escort van a few years ago and it was a sight (and noise) to behold. Smoke - you've never seen anything like it!

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yes,have seen this with commercial vehicles, a real eye opener.

early golf turbo diesels had a air filter problem that collected oil in the housing when there was enough oil it got sucked into the engine,and the car would start eccelerating all by its self.scary i should think.

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This is a strange one. "Toyota inspected the vehicle and concluded that it had burned its own engine oil," This was only 6/7 weeks after a service.

You would think if the car had been burning its own engine oil, the driver would have noticed/felt the difference while driving, or even as a passenger while pupil driving.

Could the garage have balls things up?

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yes,have seen this with commercial vehicles, a real eye opener.

early golf turbo diesels had a air filter problem that collected oil in the housing when there was enough oil it got sucked into the engine,and the car would start eccelerating all by its self.scary i should think.

I've seen it happen before too, but the driver was quick thinking enough to put it in 5th gear and release the clutch to stall the engine. It saved it from a worse disaster.

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if the oil was lost that quick through a turbo failure, thete would have been a lot of exhaust smoke.

and as the owner is a driving instrutor who would advise trainee to use his rear view mirror constantly,he would do so himself,and should noticed the problem.

does his car have optitron type instruments if so oil warning would have included a buzzer warning.

as the owner hasnt replied we will never know - but i have seen a yaris diesel engine block cracked in half due to this....the driver never mentioned exhaust smoke as it was over too quickly ;)

i doubt a warning light/buzzer could have helped at all if this were the case.

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This is a strange one. "Toyota inspected the vehicle and concluded that it had burned its own engine oil," This was only 6/7 weeks after a service.

You would think if the car had been burning its own engine oil, the driver would have noticed/felt the difference while driving, or even as a passenger while pupil driving.

Could the garage have balls things up?

Yes: I wondered about that. Overfill with oil . OK on short journeys but on long ones, engine oil is warm, car starts to burn it. Bang.

Not uncommon on Mazda diesels due to diesel into sump due to faulty cleansing of particulate filter... See Honest John - long thread.

All it needs is an extra litre of oil... and the oil flow slowly into a D$D when it's cold and wintry...so an overfill is possible in winter.

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This is a strange one. "Toyota inspected the vehicle and concluded that it had burned its own engine oil," This was only 6/7 weeks after a service.

You would think if the car had been burning its own engine oil, the driver would have noticed/felt the difference while driving, or even as a passenger while pupil driving.

Could the garage have balls things up?

Yes: I wondered about that. Overfill with oil . OK on short journeys but on long ones, engine oil is warm, car starts to burn it. Bang.

Not uncommon on Mazda diesels due to diesel into sump due to faulty cleansing of particulate filter... See Honest John - long thread.

All it needs is an extra litre of oil... and the oil flow slowly into a D$D when it's cold and wintry...so an overfill is possible in winter.

yes have read about sump level rising om the msda somewhere.the is a X mark on the dipstick that when level reaches it there is a possibility of fire/explosion.all down to the DPF cleaning i think.

owners complain that they have problems with mazda of warranty claims on this.

it may have been on mazda forums i read about it.

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Questions from the curious; how does an engine go into self-destruct mode after consuming its own lube oil through the intake system? I'm a little unsure about how this happens. Is oil picked up on any of the sensors, wanting the engine to clean itself? Is there something in oil which keeps the engine running when it has been switched off?

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Questions from the curious; how does an engine go into self-destruct mode after consuming its own lube oil through the intake system? I'm a little unsure about how this happens. Is oil picked up on any of the sensors, wanting the engine to clean itself? Is there something in oil which keeps the engine running when it has been switched off?

is it possible that due to a major turbo failure that oil from turbo caused a hydraulic effect in cylinders.

like when water is drawn into to cylinders after car is driven into a flood bending con rods etc

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Questions from the curious; how does an engine go into self-destruct mode after consuming its own lube oil through the intake system? I'm a little unsure about how this happens. Is oil picked up on any of the sensors, wanting the engine to clean itself? Is there something in oil which keeps the engine running when it has been switched off?

A diesel will burn most oil, including it's own oil. Most diesels have no control over the air flow into the engine, they control the engine speed by regulating the fuel flow.

If the engine oil is leaking into the cylinders, there is no control over the flow, so the engine speed will rise and rise until it self destructs. This sort of event would create lots of smoke and certainly not go un-noticed, as others on this thread have said. Whatever happened to the OP's engine, I hope it was under warranty!

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As above, if the turbo fails, the engine oil is still being pumped to the turbocharger's bearings by the engine's oil pump. The turbo's job is to pump air into the engine air intake. Bacsuse the turbo has failed, the oil escapes from the turbo bearings and gets into the air intake.

The engine then burns the oil in the cylinders just like diesel fuel....

So unless you notice something's wrong, the engine's oil pump will continue to pump out the engine oil from the oil sump and the engine will continue to burn it, until all the oil is gone...

If its a diesel engine, you may find that you can't turn the engine off and it continues to run - because even though you have turned off the fuel pump, the oil from the engine burns like diesel oil and there's enough coming into the engine cylinders to keep the engine running.

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Ah - we posted the same answer at the same time.....

As Malkie says, there are stories of people not being able to shut down diesel engines.

In theory, you turn off the fuel pump to a diesel and it stops, but not if the engine oil is being burned..

My Audi TDI has a flap in the air intake that seals off the air inlet when you turn off the engine.

It serves absolutely no purpose except to stop the above issue happening if the turbo fails...

(Even more frustrating when I had to spend £200 replacing the failed flap last year....)

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i agree to the 2 earlier posts.

not only would the exhaust be very smokey,but if it was burning lube oil the the engine would be running very roughly and it would have been cause for concern.why did the owner keep driving it and not stop and investigate,before things got too bad.

the engine could be stopped running by stalling it.

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Ahhhh. That answers my question. Thanks guys. For some reason I thought they fitted butterfly flaps/throttle bodies to diesel intake systems these days. I'm not a major bright spark with diesel motors. So they don't all have butterfly flaps? I presumed fitting one was what activated the wastegate when you lift off the accelerator in a turbo-diesel?

I'm also working as a driving instructor (on a trainee PDI licence as I'm not fully qualified yet), my instructor car is a RED branded Corsa ecoFlex diesel. No issues with the vehicle. Being as hooked on Toyota as I am, I'd much prefer a Yaris when I get to that stage in my career . . though I'd love a 1.33 petrol.

Back to topic, I've noticed a mk 2 Corsa CDTI instructor car which, upon applying power after gearchanges was puffing out grey smoke from the exhaust. Would that be the same oil-consuming problem? I saw an identical Corsa which was in better condition only chugging out a cloud of unburnt diesel (the norm, though this seemed excessive for a small car).

Proud to say I've NEVER seen a hint of smoke from a diesel Yaris in all my life thus far haha.

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