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  #1  
Old 03-19-2014, 02:55 PM
tparent182 tparent182 is offline
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Default I need help with my tachometer

The tachometer in my ranger only works half the time. When I'm idling the needle points to 0 and stays there until I hit the top of the dash. Then it jumps up to where it's supposed to go. Any ideas on what it is. My truck is a 2000 4.0.
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  #2  
Old 03-19-2014, 02:59 PM
Prages Prages is offline
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Default Re: I need help with my tachometer

My 2000 3.0 does the same. I can actually hit the plexiglass on the dash and make it work, so I'm sure it's a bad ground in the cluster.
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2000 Ford Ranger XLT
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3.0 Flex
4x4
Manual Transmission
Offroad Package
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Old 03-19-2014, 03:43 PM
tparent182 tparent182 is offline
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Default

Thanks I'll look into it
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Old 03-19-2014, 03:54 PM
Prages Prages is offline
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Default Re: I need help with my tachometer

I've had the cluster out, and it's just a big printed circuit board. I've tried cleaning the contacts where the wire harness hooks to the board, but that didn't fix it. You might have to break out the soldering iron and reflow the solder joints on the board.
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2000 Ford Ranger XLT
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4x4
Manual Transmission
Offroad Package
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  #5  
Old 03-20-2014, 07:04 AM
RevPaul RevPaul is offline
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Default Re: I need help with my tachometer

I had the same problem. My solution was to get another tach from another cluster. You can unscrew it, and replace yours easily. It does come off separately from the speedometer and odometer, so you don't have to worry about those.

Use a kitchen fork to lift the needle off. Then, when you are at idle, slip the needle back on the shaft. Your idle speed should be about 750-800 rpm, so that's how I aligned it.

There is a how to link somewhere on how to get the cluster out and swap the speedometer, so that has useful information for you.

My replacement came from an explorer cluster, and had not been in use for a while, so it worked a bit "jumpy" at first, but now it operates smooth like new.
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