How does the car know if you're at a light or just stopping at a stop sign? Do you save enough on gas to pay for a replacement starter?
This whole idea bothers me, probably since I've had cars where you were never sure if it would start the next time.
>>How does the car know if you’re at a light or just stopping at a stop sign? Do you save enough on gas to pay for a replacement starter?
Because its that freakin’ smart!! :-)
Seriously, it stops the motor when the wheels stop rolling and the brakes are held on. In a fuel-injected car, the engine computer knows exactly which cylinder to fire to start pushing the crankshaft (like a piston-driven steam engine). The starter might not even turn, but I’m not certain about that. Obviously, you wouldn’t attempt this with a carburetor that needs to develop engine vacuum to feed fuel. You can disable the feature, and most people do, for the reason you list. Habitual thinking is hard to break.