Car won't start

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Originally Posted by ITD

That's probably not going to work in a newer car with a dead battery. No power for the control computers, no spark or fuel to run the engine.

Yeah, those days are gone.

Also was told you can really mess up some cars by doing that. Something about unburned fuel getting where it shouldn't if I recall (catalytic converter ?). It might have applied to fuel injected, maybe with a mild turbo, can't remember. But their was a very firm warning to not roll start it.

Ugh, I had to google it now. I was right

https://mechanics.stackexchange.com/...ytic-converter