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Tachometer problem

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Old Dec 28, 2009 | 10:57 PM
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Tachometer problem

I have 1992 F250 7.3L Diesel with a 5 speed manual. My tachometer acts weak. The needle moves up when I accelerate, but not far enough. The needle never shows over 1000 rpm at driving speeds when it should actually be at 2000 or more. Anyone know what my problem is?
 
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Old Dec 28, 2009 | 11:06 PM
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its lazy lol

but seriously it could be that the needle is dragging in the bezel or its not got enough lube in the rotating part

what ever it is its bound to be in the gauge its self

if it was the magnetic pickup or the reluctor ring it would bounce or not work at all
 
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Old Dec 28, 2009 | 11:12 PM
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Should I just replace the gauge?
 
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Old Dec 28, 2009 | 11:15 PM
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.... probably
 
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Old Dec 29, 2009 | 07:22 AM
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I think there is a tech article somewhere on here about tachometer repair.
 
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Old Dec 29, 2009 | 08:30 AM
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Originally Posted by TexasGuy001
I think there is a tech article somewhere on here about tachometer repair.
I didn't see an article in the tech section for our generation of trucks; do you know where I can find it?
 
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Old Dec 29, 2009 | 03:00 PM
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Best to check the tach sending unit as you have a Diesel truck, that may be your problem.
 
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Old Dec 29, 2009 | 06:47 PM
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take a look at your camshaft position sensor this does several things including creating a signal for the tach since a diesel has no ignition system
 
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Old Dec 30, 2009 | 05:16 AM
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Originally Posted by ClaytonSmith
I didn't see an article in the tech section for our generation of trucks; do you know where I can find it?
Sorry, but I can't find the article or thread. I know it was on here. It talked about how to clean it and repair it. Maybe it was in the Bronco section or Ranger section.
 
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Old Dec 30, 2009 | 05:31 AM
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Originally Posted by TexasGuy001
Sorry, but I can't find the article or thread. I know it was on here. It talked about how to clean it and repair it. Maybe it was in the Bronco section or Ranger section.
if you find it see if it can be stickied on the thread -would be a great addition to the other tech subjects
 
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