2001 f250 super duty 4×4 v10

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.

2 thoughts on “2001 f250 super duty 4×4 v10”

  1. 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.

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