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Tach and temp gauge don't read accurate

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Old 03 Feb 2015, 10:06 pm
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Join Date: Jan 2015
Location: Cape Coral, FL
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Default Tach and temp gauge don't read accurate

I have been searching the forum a while and didn't find other topics with this issue but sorry if I missed one. Very helpful forum overall though considering I just did a total head job, water pump and timing belt in my 01 with all hand tools and never disconnected the a/c thanks to dozens of posts i read on here!

Anyways- the issue, since I bought it is tach reads low by over 1k rpm. Idles at 0. Turns about 700 rpm at 50 mph in O/D (AT car). Didn't bother me. All cluster lights were burnt out so I got a ten pack of #74 off amazon for a sweet price, pulled cluster, replaced all bulbs, reinstalled and ever since temp gauge starts at 3/4 mark and stops just past H. (Probably a needle stopper in there) I did the hold down trip od button and turn on ignition reset feature two separate times. Display cycles and all gauges run through their paces but coolant gauge starts at 3/4 and taps out past H and tach starts at 0 but taps out before 6.

I don't worry about tach but I want a working temp gauge. This started after cluster bulb replacement but before engine rebuild. Any ideas from anyone are welcome!
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gauges, instrument cluster, tach, temp gauge

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