Compression Ignition Addict
Join Date: Apr 2007
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Here is another possibility ( haven't tried it, just saw it posted a few years ago):
If you want to fix the problem read on. I have one of the 06 problem speedometers in my truck. There is a TSB on these speedometers. The backing warps and hangs up the needle. The computer senses something is wrong and makes adjustments. Mine has been up to 50mph faster then the real speed I was doing.
Pull the cover off of the dash starting on the drivers side door. You don't need any tools, it just clips in there. Lower your steering wheel to the lowest setting. Pull the clip off of the headlight switch and work your way over to the radio. Pull all of the heater control clips, and the power outlet.
Remove the 4 bolts, and unclip the two clips from the top of the instrument panel. Remove the clear plastic cover over the gauges. Place the gauges on a nice flat surface like a desk. Look at the face of the instrument panel. I could see where the black center cap was scraping on the face. You have to look carefully.
I do not think the needle comes off of the panel unless you somehow remove the black cap, which I believe is glued on. So here is what I did. Take a thin piece of cardboard and a piece of 220 grit sand paper. The cardboard protects the face. Work the cardboard and sandpaper under the black cap. Press down on the needle softly and sand the back side of the black center cap. I sanded about 1/8th of an inch off of mine.
06 F250CC SB FX4 Lariat; ARP studs; OEM gaskets; Banks exhaust; DynaTrac Ball joints; RACCCV6000; JimmiJammers; Ravelco; SynchroMax in trans case; Fumoto valves; Harpooned; Blue regulator spring; DashDAQ; PHP FICM; RiffRaff boots; DCPower 270AXP; Power Inverter; Bilstein shocks; BPD EGR cooler, radiator, water pump; SCT w/ SRL+; Rotella ELC Ultra Coolant; X2Power AGM batteries
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