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Old 03-20-2013, 08:48 PM
rangerlocal rangerlocal is offline
Ermahgerd Ferd Rernjurs!
 
Join Date: Aug 2012
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Default 1995+ Fix for Tachs

Materials needed:

1. Socket set for removing cluster from dash
2. Soldering iron of at least 15 watts and solder
3. Torx 20 for removing cluster face
4. Patience and a semi-steady hand!

So upon procuring an instrument cluster with a tach from my friend's totaled 4x4 Ranger, I was disheartened at the least to see that after installing the new cluster in my truck, the tach didn't work. Now, it's not that uncommon for one of these to just take a dump, but I wasn't going to give up without a fight.

There's already a thread on here, and the explorer forum IIRC, about bad solder joints on the OLD style instrument cluster, where the tach would usually get stuck around 3000 RPM's. This was not the case in my situation, my tach was just dead completely.

But upon careful inspection of the back of the board with a jeweler's glass, I noticed a near microscopic crack in what I assume to be the signal pin. To get to the back of the gauges, simply remove the plastic guard over the front with the torx bit, then pull firmly but gently up while holding the white plastic connector board on the back. It will eventually pop free with access to the back of the gauge.

After resoldering this joint, my tach worked perfectly.



Again, this was the same fix as for the older 1993'ish tachs, but the pins are different, and there doesn't seem to be any documentation on sites of this happening on these model years, but this was the fix that worked for me, specifically the "S" pin. That was the only one I had that was bad, but I redid all the other solder joints anyway as a precaution. Hope this helps someone else out and saves them half a day from trying to get it working like I did!
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2000 Ranger XL, 2WD, 3.0l, 3.73 rear, 10" rear drum ABS, standard cab, long bed, A/C, 4r44e auto trans w/transgo shift kit, throttle cable mod, air box silencer mod, rear sway bar retrofit, white grill swap, CURT hitch, Westin step bars
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