installed a complete 2003 v10 (all wires,alt,ac,p.s. and so on) in my 2001, now my tach reads around 2 times too fast.
installed a complete 2003 v10 (all wires,alt,ac,p.s. and so on) in my 2001, now my tach reads around 2 times too fast.
Tried comparing the electrical diagrams of the Instrument Cluster of both trucks and they don’t appear compatible to me. See for yourself.
2001 Ford F250 Super Duty V-10 Instrument Cluster
2003 Ford F250 Super Duty V-10 Instrument Cluster
Thank you for looking, the tach is the only system that is not operating normally. The engine runs fine, and transmission operates as it should. The original engine had 501,000 miles on it and ran fine, used no oil, just scared me due to the high milage so I replaced it with the 2003 V10 that has 19,000 miles on it. I can live with the tach being off, but it would be nice if it read the correct rpm’s.
Comments are closed.