Urgent Help Needed...Tach Stopped Working
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Senior User
Joined: Feb 2009
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From: Ortonville, MN
Urgent Help Needed...Tach Stopped Working
Well, I need some assistance...kinda quick here, i dont know if this had anything to do with it, but i had just washed my truck...anyhoo, i went to the car wash and was tach was workin ok, i noticed as i was pulling out that my tach had stopped working altogether. when i got the truck it would often read like 500RPM low and or jump around erratically. it was never a main concern until now as it has completely stopped working. it wouldnt be a big concern being that i can shift by listening and feeling the truck but my speedometer gears are screwed up and so my speedometer doesnt read right either. whats more is that im going on a long trip to teh twin cities ( i live in a hick town where its easy to do only 30 and the local cops know me and wont ticket me for like 35 ish) but im going someplace with a lotta cops who r very bitchy and several speed zones. idk where the sensor is so if we can start there and tell me where it is i can trace it back from there...i think maybe its a loose connection and it just happens to be a fluke i washed the truck when it came off.
Methanoholic
Joined: Mar 2009
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From: Maine (NorCal Native)
Elder User
Joined: Jan 2008
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From: Newark, Delaware
I used to have '90 F250 7.3 and I had the same problem. It is most likely the tach sender. It is located in the front of the engine. I believe it is right there by the engine oil filler. I just got a replacement from the dealership and it solved the problem.
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Senior User
Joined: Feb 2009
Posts: 134
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From: Ortonville, MN
i was wondering if the sensor on the front of the engine on the timing gear cover was it...two wires coming off...i assume it reads off the IP gear teeth...any chance that its liek the RABS sensor and may just be dirty?
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Sorry, Try this, I guess I copied the wrong url...
Tachometer Sensor
[edit]
I fixed the previous one as well.
[/edit]
-Enjoy
fh : )_~
Tachometer Sensor
[edit]
I fixed the previous one as well.
[/edit]
-Enjoy
fh : )_~
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Senior User
Joined: Feb 2009
Posts: 134
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From: Ortonville, MN
yea i just pulled it...its not too dirty but ive noticed after wiping the oil and dirt off it, that the wires are bare at teh base where they connect to the sensor
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Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
I've heard tell when the shielding cracks at the base (entering the unit) they are typically done for or close to it.
I suspect water gets in a shorts them out internally.
-Enjoy
fh : )_~
I suspect water gets in a shorts them out internally.
-Enjoy
fh : )_~
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Thats a good question, I do not know where to get one other than Ford or IH, and it's likely obsolete at Ford!
I need one as well, hasn't made it to the top of the list yet, so I have not looked for one.
You may find one on the web someplace but that ain't happening by Monday without a miracle.
-Enjoy
fh : )_~
I need one as well, hasn't made it to the top of the list yet, so I have not looked for one.
You may find one on the web someplace but that ain't happening by Monday without a miracle.
-Enjoy
fh : )_~
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