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+--- Thread: Idal low speed moter (/showthread.php?tid=395)
Idal low speed moter - Dan Howarth - 06 Mar 2007
Hi all. on fixing my electrical problem just now befor my tea witch was very nice in fact. I had the ignition switched on but car not running and i could hear a humming coming from the back . Its not the fuel pump because thats in the front and silent after 5 secs. I think its the idal low speed moter. black thing about the size of a can of red bull, big connector on the top. Can anyone tell me if its supposed to hum and vibrate like an electric shaver. I don't know because funny enough i'm always sat in the car when i turn the key. cheers.
- ChrisS - 06 Mar 2007
Dan
Yes, when the ignition is on the idle speed valve is powered up and hums. Put your hand on it and u can feel it
But its not that loud , you can only hear it with the engine cover open
- Dan Howarth - 07 Mar 2007
Thanks Chris. it might be that mine is humming just a little louder than normal. It is quiet in my garage.
- NickT - 07 Mar 2007
You will get the humming as the ECU is pulsing the motor into the fully open position ready for starting the engine.
NickT.