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Strange electrics


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last night i drove the ES in the dark for the first time, apart from one headlight bulb not working, as i was driving along the road, i could see the dash/headlights getting brighter and dimmer with the unulations in the road.

any ideas? i'm still thinking of an earthing problem somewhere......

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Alternator overcharging?? As the engine has to work harder/slows down to get up hills, the voltage decreases and increases again as you go down the hills... Bit difficult to measure in a disco while you are driving, but you could run a couple of long test leads to a point inside and attach a multimeter. It should show up on tick-over, though.

Had a similar problem on an Astra and a new alternator cured it... It was trying to charge the battery at over 16v at its peak!!!

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