View Full Version : Help with Tach

08-14-2006, 09:31 PM
I just bought a 1997 maristar 200vrs with 350 hours with the tbi vortec and the tach will not go over 3000rpm even though the motor is? :mad: Anybody have any idea what is up, it actually starts going down an equal amout of rpms past 3000 so at 4000 it reads 2000 and so on. Any help?