tristanspence
New Member
- Posts
- 65
- Location
- oxfordshire
the charge light has come on on my disco 200tdi, it is dim on tick over and gets brighter as the revs go up. i have done some searching and checked the battery voltage its 12.8v and 14.5 (if i rember right) with engine running. put a clamp meter on the output from alternator its producing 5.8amps on tick over when it rev it up this drops to 3 or 4 amps. i put a jump lead on the earth terminal of one of the batteries ( it has 2) and clamp it to the engine thinking if it was an earth fault the light should go out, but it didnt.
at this point i would normally just buy a new alternator and try it, but batteries were flat about 2 months ago and wouldnt charge plus the charge light stayed on all the time even when i took keys out, so i replace the alternator then with a brand new one.
and ideas of what to try next would be a great help.
at this point i would normally just buy a new alternator and try it, but batteries were flat about 2 months ago and wouldnt charge plus the charge light stayed on all the time even when i took keys out, so i replace the alternator then with a brand new one.
and ideas of what to try next would be a great help.