commonsthor
Registered User
today when i went to leave a job my tach didnt work would it be a sending unit ? and where is sending unit? thanks 
tach quit
- Thread starter commonsthor
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today when i went to leave a job my tach didnt work would it be a sending unit ? and where is sending unit? thanks 
gandalf
Senior Member
Sounds like the tach sensor. On my truck, the '92, its located up near the oil fill neck. Its about a 1 inch nut with two wires, just to the rear of the oil fill, slightly to the drivers side. There is a test procedure, I think, but I don't have my books with me.
HTH
HTH
pafixitman
Registered User
From Pete...
RPM sensor is located on the timing gear tower and oil filler port, there is tach sender test..
The dead tach should send the automatic trans into a "failure management mode" (limp mode) with harsh engagements and firm shift feel, and an abnormal shift schedule.
Replace the tach sender on the oil fill housing a big 1" nut with 2 wires. Ford only part Engine RPM sensor E5TZ-17B384-A about $50. You can remove and clean it but usually changed later too. You can test it too, hold it in the air away from ferrous metal, using an ohm meter lead on each wire you need DC resistance between 2000-3000 ohms.
RPM sensor is located on the timing gear tower and oil filler port, there is tach sender test..
The dead tach should send the automatic trans into a "failure management mode" (limp mode) with harsh engagements and firm shift feel, and an abnormal shift schedule.
Replace the tach sender on the oil fill housing a big 1" nut with 2 wires. Ford only part Engine RPM sensor E5TZ-17B384-A about $50. You can remove and clean it but usually changed later too. You can test it too, hold it in the air away from ferrous metal, using an ohm meter lead on each wire you need DC resistance between 2000-3000 ohms.
wwwabbit
Mmmmm Diesel
Or about $120 from a dealer in Canadapafixitman said:
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