Mysterious discharging - Mondeo 2.0 diesel

Mysterious discharging - Mondeo 2.0 diesel

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Tyre Smoke

Original Poster:

23,018 posts

268 months

Tuesday 22nd August 2006
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My '03 130hp 6 speed Mondeo estate LX is doing weird things electrically. Starts and runs fine then after at least half an hour, sometimes as long as five or six hours, the charge light comes on and the battery shows signs of discharging. Testing of battery (brand new) and alternator indicate both good. Eventually all the electrics fail.

Anyone ever come accross a fault like this?

Can't work it out as every damned thing is testing as okay furious

Zad

12,760 posts

243 months

Wednesday 23rd August 2006
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Could it be the regulator? Poor connection somewhere on the alternator power wires? How are you are testing the alternator, at idle, or at speed/on load? What voltages are you getting (battery, alternator, on load, off load)?

If you put your lights on and rev the engine, do the lights get brighter?