Problem: Engine Tries To Engage While Stopped

[18hawkeye]

I have a Lariat EcoBoost and I am having a problem while stopped with my foot firmly on the brake.

The motor has shut down yet it acts like I have lifted my foot off the brake and the engine trembles.

Dealer could not replicate the issue.

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[codavis2]

The start/stop system does not necessarily keep the engine off the entire time that the brake pedal is depressed. If it needs to run the A/C compressor or if there are any other loads on the electrical system, it will restart the engine before you lift your foot to move. My hybrid will even sometimes start the engine if I'm stopped at a light too long. What you described is completely normal. From my experience, the engine restarting while your foot is still on the brake is a lot more noticeable than it starting after you release the brake and start moving again.

 

[18hawkeye]

The start/stop system does not necessarily keep the engine off the entire time that the brake pedal is depressed. If it needs to run the A/C compressor or if there are any other loads on the electrical system, it will restart the engine before you lift your foot to move. My hybrid will even sometimes start the engine if I'm stopped at a light too long. What you described is completely normal. From my experience, the engine restarting while your foot is still on the brake is a lot more noticeable than it starting after you release the brake and start moving again.

Thanks so much for your reply! The service department at the dealership apparently did not know this which is not very comforting. I forgot to mention that when that happens the speedometer reads ‘1’.
Thanks again.

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