'83 300sd recently purchased,
RPM Guage not working at all some times, sometimes just jumps around, sometimes just works. Also, my dash back lights are not working, checked the bulbs, they are fine. I read somewhere something about a similar case where there was a bad ground connection. I removed the instrument cluster and checked every connnection to the cluster. Is the one with just two prongs that seems to be behind the rpm gauge the wire for the rpm gauge? I am not sure of where to check if it is a bad ground. How would I determine this?
Thanks.