Tach stuck and reading high?
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Freshman User
Joined: Apr 2007
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Tach stuck and reading high?
Been extremely cold here the past 2 weeks in PA. This is when my tach started acting weird. When the shut the truck off it it stuck at like 3k. Then when I start it up it continues to read high? Any suggestions to why this may be happening? The truck itself isnt running abnormal, just the tach reading? Is it due to the cold? Dont know anything about how tachs work? Any help is appreciated. I drive an 06 PSD...
Senior User
Joined: Sep 2006
Posts: 253
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From: Santee, CA
You may want to put the cluster into it Test Mod. This will exercise all the guages.
Before turning the key, press and hold the Trip button, then turn the key ON (not start). The ODO will display TEST, then release the button. You can now start the truck. Now with each press of the Trip button it will cycle through various readings. One of the first is Guage. This sweeps all the guages full sweep then returns to normal. Here is a link for more info:
https://www.ford-trucks.com/forums/6...ml#post4940556
Before turning the key, press and hold the Trip button, then turn the key ON (not start). The ODO will display TEST, then release the button. You can now start the truck. Now with each press of the Trip button it will cycle through various readings. One of the first is Guage. This sweeps all the guages full sweep then returns to normal. Here is a link for more info:
https://www.ford-trucks.com/forums/6...ml#post4940556
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