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mike_a_mechanic, ASE Certified Technician
Category: Peugeot
Satisfied Customers: 5470
Experience:  17 years experience as a auto mechanic, foreign and domestic.5 years running my own repair business.
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I have a 407 2l sv and the headlights flicker when the engine

Resolved Question:

I have a 407 2l sv and the headlights flicker when the engine is idel . if you rev the engine it stops. it is only the head light flicker. no other lights .
Submitted: 2 years ago.
Category: Peugeot
Expert:  mike_a_mechanic replied 2 years ago.
Hello, welcome. My name is***** will do my very best to assist you with your question. I apologize if you have been waiting long for a response.
What is the voltage that the battery and alternator are putting out?
Customer: replied 2 years ago.

Alternator was fluctuating between 31-34v and the rac chap said the battery was fine but didn't tell me the voltage

Expert:  mike_a_mechanic replied 2 years ago.
That is to high for the alternator, the alternator is overcharging and will cause the issue that you are having.
Customer: replied 2 years ago.

What do I need to do to rectify this

Expert:  mike_a_mechanic replied 2 years ago.
Because the alternator is overcharging it will need to be replaced.
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