Engine stops oddly. - United Bimmer Community

**Numark318i** · 05-30-2006, 11:39 PM

so i have nmoticed that when i turn my car off the engine keeps turning and it sounds like it rotates a couple of times after the explosions stop.

What could be causing this?

I put 91 octane in the car.

**Spieluhr** · 05-31-2006, 12:12 AM

that sounds really weird, the engine should not keep moving.

**RSF5** · 05-31-2006, 12:22 AM

What could be doing that? is the car automatic or manual?

**c1apton** · 05-31-2006, 04:10 AM

Quote:

Originally Posted by Numark318i

so i have nmoticed that when i turn my car off the engine keeps turning and it sounds like it rotates a couple of times after the explosions stop.

What could be causing this?

I put 91 octane in the car.

Do you mean it's "dieseling"? (like running on) If that's the case after you put in 91 octane could be a carbon build up causing pre-ignition. When was last plug change? Does it do it everytime you turn it off or only after certain circumstances? (more info please)

**Numark318i** · 05-31-2006, 10:56 PM

Quote:

Originally Posted by c1apton

Do you mean it's "dieseling"? (like running on) If that's the case after you put in 91 octane could be a carbon build up causing pre-ignition. When was last plug change? Does it do it everytime you turn it off or only after certain circumstances? (more info please)

yes dieseling if thats what u call it.

Changed plugs about 15-20k ago. New wires also. Bosch all around.

Usually only does it when its hot, when i take a drive longer then an hour or when i drive spritedly.

**c1apton** · 06-01-2006, 12:29 AM

Run a bottle of Techron or STP gas treatment and fill up tank at same time - see if that helps. It sounds suspiciously like bad fuel and/ or moisture in gas