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Are you talking about the engine automatically shutting off when you come to a stop and starting again when you take your foot off the brake pedal? I recently
by hyperdimension 6y ago
Are you talking about the engine automatically shutting off when you come to a stop and starting again when you take your foot off the brake pedal?
I recently replaced my starter motor ('09 though, so I definitely don't have the feature,) so I'd be wary of that, but don't they fit longer-durability starter motors in those cars?
Actually, come to think of it, (please correct me if I'm wrong) they probably keep the fuel pump primed while 'on' but at a stop, but I'd be concerned about the lack of oil at engine start. I always was told to turn the key to on, wait for the ~2 seconds for the fuel pump to prime and after you start the engine, and let it run a bit before starting to drive.
My cynical side wants to think the start/stop is a planned obsolescence 'feature,' but obviously I don't really know for sure.
- jaxx75 6y agoYes, the starters are designed differently. Engine oil really isn't going to have enough time to leave bearing surfaces and the valve train in any significant way. First start of an engine after hours of sitting is where lack of oil is a concern. Priming the fuel pump is for short crank time and start reliability, not reducing engine wear.
- hyperdimension 6y agoThat's good to know. You learn so many things by rote; rarely, it seems, do you learn the reasons behind them all. Thanks.
- userbinator 6y agoMy cynical side wants to think the start/stop is a planned obsolescence 'feature,' but obviously I don't really know for sure. It's an attempt at squeezing the tiny last bit of fuel mileage out in the standardised tests, and they obviously don't care if it wears things out faster...