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clubmanrob2005

Electrical gremlins

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Hi guys,

Few electrical gremlins

When lights are on and say thermos on or indicator flashing dash lights flicker

 

When brakes applied digital temp gauge reads 10 degrees higher and if lights are on at same time 20 degrees higher

 

Any thoughts

 

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Possible bad earth

Has the car been in a crash or has the battery been changed/disconnected recently?

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Test your battery and check all the fuses first. Check that all the earth straps and battery terminals are tight. It's probably worth checking that the alternator is charging at the correct voltage too. If you test it at the battery with a multimeter it should be between 13.8 and 14.3V while running. Load the alternator by turning on your headlights, wipers, hazard lights and radio at the same time and test the voltage again, it should be above 13.5V with the engine running.

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