Same thing just started happening to me... AGAIN!
1. Battery light flickers at 3500 rpm, then goes constant-on beyond 4000 rpm; (sucks at hwy speeds)
2. Headlight, dash lights etc.. flicker from 3000 rpm on.
I will test out later on with multimeter to see whats going on (likely voltage drop at higher rpms)
This happened to me before, the alternator was replaced however the mechanic gave it back to me doing the same thing. I brought it back and then he returned it fixed... Because of this, I have doubts whether it is in fact the alternator.
I have a sneaky feeling that the accessory drive belt might be slipping and/or the tensioner is busted. Theories only. I had a quick look at the belt and it looked fine, maybe a bit of glazing on the back side (what the tensioner rolls on) This would be a lot cheaper.
ANy thoughts before I go to a mechanic?
Thanks,
RRW
