406 burning engine

[harencguri]

Hello . I have a peugeot 406 1.8 16v 1996 . I was running on highway with 120km/h and the engine has made a big noise . I stop direclty the car and i see a very little oil on the road . I see the level of oil was empty ... i take the car to mechanic and he told that the cylinder engine is burning bcz was without oil .... i want to know how is possible that the oil warning light wasnt on ? The temperature of coolant on highway is always around 75°c ..

[steve_earwig]

Hi there. I guess you mean the engine has cooked and it is destroyed (?) The problem with standard oil pressure switches is they come on at much too low a pressure, so when the warning light illuminates it's probably too late. Or maybe the sensor is broken, or the light is (after all the car is 19 years old). I thought your car should have a level sensor but maybe this is broken too.

I suppose the crucial question is: When did you last look at your oil level?

[Welly]

Yes unfortunately when the Oil Warning Light comes on it's very often too late and the engine may have suffered excess wear and heat in the areas furthest away from the oil pump.

It is sometimes possible for the engine to continue running with new oil but it may well be noisy and under-powered due to the wear in the crank bearings etc. I hope you can get the car fixed.

[harencguri]

Yes unfortunately when the Oil Warning Light comes on it's very often too late and the engine may have suffered excess wear and heat in the areas furthest away from the oil pump.

It is sometimes possible for the engine to continue running with new oil but it may well be noisy and under-powered due to the wear in the crank bearings etc. I hope you can get the car fixed.

few time ago it show me warning light bcz the oil filter leaks oil and there was no oil ... this time didnt show anything ,until it was burning the engine , i fixed my car , i have changed the engine , this "new" engine is year 1999 , i hope it runs well

[harencguri]

Hi there. I guess you mean the engine has cooked and it is destroyed (?) The problem with standard oil pressure switches is they come on at much too low a pressure, so when the warning light illuminates it's probably too late. Or maybe the sensor is broken, or the light is (after all the car is 19 years old). I thought your car should have a level sensor but maybe this is broken too.

I suppose the crucial question is: When did you last look at your oil level?

yes it was destroyed .... my mechanic told me that was around 1 liter oil on engine and for this reason the light it wasnt switched , and engine has burned on cylynder head ...it told me the reason was bcz rod piston was distorted ...