My tach randomly will jump around sporadically, and sometimes it will work prefectly.
I have a brand new alternator that I had to install becuase my last one wouldn't start to charge unless I hit the alternator with a screwdriver handle or something like that. The old one worked fine and gave a normal tach signal.
The new one also worked fine for a while then started doing this. I'm just wondering if I should be getting the alternator replaced under warrenty or should I be looking at the wiring?
Ideas, Comments, Past Experiences?
Thanks,
James.