06-27-2022, 08:57 AM
I have a 2004 8.1 crusader engines and my starboard tach stopped working.First it fluctuated wildly now stays on zero.I removed and cleaned wiring terminals on tach,no help,swaped tach with port engine and tach worked.Now I'd like to check wiring on engine but I'm not sure if tach wire goes to alternator or ecm.Have not checked volt output to tach yet.Hoping its just a bad contact or ground .Anyone with similar problems? thanks.
