Strange metallic buzzing when switching off

[WokingWedger]

Following on from my previous post 'poor running after lay, I have noticed when turning the ignition off (the engine doesnt have to have been running) there is a metallic buzzing sound for about 1 to 2 secs that appears to be coming from somewhere around the plenum chamber (not the fuel low meter).

This is after the ignition is off !

Is this normal as I havent noticed it before.

Also the plugs seem sooted up.

Any ideas anyone ?

( I have checked the ignition leads for a misfire -nothing obvious)

Edited by WokingWedger on Thursday 17th April 07:45

[sgrimshaw]

Stepper motor moving?

[Jasandjules]

Mine does it too, so hopefully not a problem, I just assumed it was something settling down.

[davetherave1970]

sgrimshaw said:

Stepper motor moving?

[WokingWedger]

Ahhh, could be, I just havent ever noticed it before and it is quite loud.

[blitzracing]

It is the stepper motor, quite normal. Its winding back, ready for the next restart.

[WokingWedger]

OK I am convinced !

Thanks everybody.

Now to continue looking for the problem elsewhere then.

[shadowninja]

Yep, mine did it, too.