tach not working
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tach not working
My tach quit working so I bought a new tach sensor, installed it and it still will not work. I checked the 15 amp fuse under the dash and its good. The overdrive light will not work either. Its a 1991 7.3 non-turbo. To drive it I have to start from Low 2 it get going because as I understand the tranny is affected by the tach. Does anyone have any ideas.
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Joined: Jan 2004
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From: clyde,ny
could be the tach itself quit.acording to my ford service manual the sender sends its signals directly to the trans controller,then it gos to the tach,just start chasing wires or pull the dash apart and check for power at the dash connector.
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From: Middle of corn/bean field
I have a 1991 F250 with 7.3 non turbo and my tach only works when the rpms reach 1000 or over when the rpms drop below the tach bottoms out what should I do? I havnt had any problems with the tranny though so any advice would help
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Hey thede04: That sounds like you need a new tach sensor. Its about $45 at your local Ford dealer. Its located on the right side of the oil filler tube, its the big 1' nut with 2 wires coming out of it.
Chuck
Chuck
