Triperformance

I'm unsure if this needs to be on the tech side but my question is simple. My question is would the engine flood if I were to start it and drive off without a proper warm up? Or is the situation of flooding when people turn their car off after a cold start and try to start it again?

fahrfegneugen

You will not flood it once it is running. You flood it by turning off while it is still cold, my fear is dropping the clutch by accident and killing it while it is still cold. Either way I warm mine up till the temp needle is almost vertical until I turn it off.

Triperformance

Cool, I usually warm my cars engine up regardless but I was just wondering and what case to avoid to cause flooding. I know with the 7 you would want to keep the rpm's low till the car is warm and do whatever you want with it. Worst case I would get in a drive away being easy on it till its warm.

fahrfegneugen

Wow, I have never heard of flooding a car while it was running. My cousin had a 7 and said it flooded constantly though.

Nonetheless, from what I know you probably just shouldn't drive it hard till it is warm (so I agree) and I have yet to flood mine after driving off with it cold, and I do that every day.

Juice

iTrader: (1)

Start the car and drive it like any other car. The only way to flood it is to shut it down when the engine is still cold.

As far as driving it while the engine is cold, just keep the revs below 4k until the engine is fully warmed up. You should be fine.

Toly

You don't have to worry about it. You can stall your car cold and it will restart right up. If you wait a few minutes before restarting it, then you may have a problem. Flooding is caused by gasoline dissolving the oil, which provides seal between combustion chambers. If you warm up your engine before turning it off, the gasoline is vaporized and there's practucally none left in the engine to eat away the oil. Now, If you turn off the engine cold and restart it right away, the gasoline simply won't have any time to dissolve the oil, so you won't have any problem.

fahrfegneugen

Cool thanks for the info. I thought it was something to do with the air fuel mix being too rich.

CyberPitz

That definitely doesn't help anything,. but not the main reason. When you shut down, all the extra gas being pushed into the engine during the warm up process doesn't get burnt, and sits in the spark plugs, causing the problem with sparking thew new gas coming in.