2005,Envoy,short wheelbase,when coasting the headlights flicker,the volt meter spikes down,had a new alternator installed in 06,another last week,no ryhm or reason when it does it,gm knows of the problem and says it is normal,sometimes I have to get off the road because it looks like im flashing my lights,very annoying,just thought you might have heard something.thanks
I checked 2006 MY and nothing comes up. What year in particular, what engine? What are the symptoms? Could be a bad ground? Just guessing at this point! Let me know - thx!
