How do I fix my Tach meter problem. When I start the car the hands jumps all the way to the end of the right side and stays there.
or should I just get an after market to replace it..
Thanks....

 

when i had my 87 berlenetta, it did it to me. When started it was pegged, and when i turned it off it sat 2,000. This isnt really a fix, but i just punched it really hard and it went back to normal and worked fine till i sold it. Not that much of help,but just letting you know your not alone. It got pegged after i did something with the timing, i was confused at the time on it.