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Bob, UK Ford Car Mechanic
Category: UK Ford
Satisfied Customers: 2046
Experience:  ATA Tech, Ford Tech,6 Years with Ford, 4 years with MG Rover
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my ignition warning light comes on when im driving and when

Resolved Question:

my ignition warning light comes on when im driving and when i stop at traffic lights or a give way ect the engine cuts out although it starts back up as normal! there is also a whining noise coming from the engine. any help would be appreciated. my car is a focus c max 05 reg
Submitted: 7 years ago.
Category: UK Ford
Expert:  Bob replied 7 years ago.

Hi there hope i can be of some help.


From the symptoms you describe it sounds like a chrarging fault. The whining noise you describe and the ignition light been on are most likely linked.


A whining noise from the engine can indicate worn alternator bearings. If the alternator bearing are damaged, this usually causes internal damage to the alternator. The fact that your c-max actually cuts out, suggest a serious internal fault with the alternator and will need replacing.


The vehicle can restart as during cranking the 'smart charge' system cuts off charging, and any unecessary drains on the battery, i,e radio,heaters etc.


If i can be any more help, please ask, cheers Bob

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