Posted by Keith in Washington [162.158.79.140] on Saturday, May 20, 2017 at 19:47:42 :
In Reply to: Must Be in 4 Wheel Drive! posted by Jim in Litchfield Park [162.158.142.103] on Friday, May 19, 2017 at 16:44:19 :
Ok simple answer. Your tac is reading 2x actual RPM. My carryall has this problem with MSD electronic ignition and a VDO tac. I need to put a diode in the system to fix it.