Siia109
Well-known member
So I'm falling down the youtube rabbit hole with diesel repair videos and the 200TDI / 300TDi videos as I am learning my way - and up pops a D90 with a "runaway diesel" - smoking and high RPM until failure as people dove for cover.
I knew about "dieseling" even petrol engines do that - but never heard of the runaway diesel. Further reading it is something that is rare, older engines are more prone to it as the newer engines have more control over the fuel, and it happens mostly to turbos.
Some how "additional fuel" gets sucked into the engine causing the engine to just redline. One write up referance the oil in the turbo if it gets sucked in this will cause the engine to run wild. Still not clear on where that much additional fuel could come from - didn't think oil would contribute to the engine red lining.
My question to the group - How common is this? how would this happen on a 200 or 300 TDi? and has anyone seen it happen and can it happen while your driving down the road? - because its scary AF when these engines just take off and unless you suffocate them from intaking air there is nothing to do but run!
Thanks
I knew about "dieseling" even petrol engines do that - but never heard of the runaway diesel. Further reading it is something that is rare, older engines are more prone to it as the newer engines have more control over the fuel, and it happens mostly to turbos.
Some how "additional fuel" gets sucked into the engine causing the engine to just redline. One write up referance the oil in the turbo if it gets sucked in this will cause the engine to run wild. Still not clear on where that much additional fuel could come from - didn't think oil would contribute to the engine red lining.
My question to the group - How common is this? how would this happen on a 200 or 300 TDi? and has anyone seen it happen and can it happen while your driving down the road? - because its scary AF when these engines just take off and unless you suffocate them from intaking air there is nothing to do but run!
Thanks