No tach - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 3 (permalink) Old 07-26-2018, 03:50 PM Thread Starter
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Location: Central Illinois
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No tach

My truck has been apart for ~8 months and while it was I took the gauge cluster apart to convert to blue LED’s. Finally plugged it in a day or so ago and everything works but the tach. I have the infinity from DP tuner (plugs into OBD II port) and it reads the rpm, which makes me believe the issue is in the cluster/ dash and not the CPS. Can anyone point me in the right direction?

1997 F-250 OBS
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post #2 of 3 (permalink) Old 07-27-2018, 03:25 AM
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Location: Tehachapi, CA
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Re: No tach

I would check the continuity of the White/Pink Stripe wire from the tach to the PCm connector pin 50 (97 Federal truck) or pin 19 (97 California truck). Cheers!

97 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, Ext Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed

SOLD: 94 F350 CC DRW PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, 3 DP, Bilsteins, $12 AIC, Coolant Filter, Explorer O/H Console, Trans Temp, Boost, and Pyro, Pedestal Mod, Gutted EBPV
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post #3 of 3 (permalink) Old 08-12-2018, 09:16 PM Thread Starter
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Just getting on here to post an update: check the fuses. I had no O/D light or function, no cruise, no tach, some of the other dummy gauges weren’t working. Come to find out it was just a little 10A fuse. I thought they were all separate since I have had the truck completely apart, but that’s what it was.

1997 F-250 OBS
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