Hi
Have just replaced the engine in my 300TDI discovery. last night on taking it for a run to the MOT centre may rev counter and batt warning light kept coming on. Carried out a few checks out side the garage but was after any pointers for when I get it home tonight.
With the previous engine (alternator came with replacement engine so this has been changed) I was always getting the rev counter stopping to work and on a couple of occasions had the bat light flicker on.
With replacement engine and alternator neither brand new and multi meter on batt I can see the alternator is not charging. Tightening the charge cable nothing but when moving the warning light cable this appeared to make it start charging, so tightened this. All was ok but again when taking for quick drive problem still there.
I don't think it is the alternator as I had similar issue with old one. Going to look at crimp connections on the three cables tonight.
If I remove all cables to the alternator put my meter between the alternator and the neg on the batt with the engine running this should prove the alternator?
Have also notice from reading the Haynes manual that there should be a suppressor on the alternator which I do not have, but would expect this to only effect the rev counter.
Any suggestions on what to look for would be appreciated.
thanks peter