Compression Ignition Addict
Join Date: Apr 2007
Location: Wright City, MO
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Speedo is off...
Hey guys, my 2000's speedometer is off. I've got 3.73 gears, and at 2000 RPM my speedo reads 69 MPH. It's supposed to be at about 72 mph... right? I've got oversized (285/75/16) tires, but that means it still should be reading 72 mph at 2000 rpm, unless it was corrected, which means I should be at about 75 mph...
Do I need to change out a gear or does the computer need to be reflashed to change the speedo? Thanks...
2000/2006ish Ford F-250 Larryette 7.3 Powerstroke 4x4
5" Sewer Pipe Exhaust
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, DIY 6637 Intake, Wicked Wheel'd, De-foiled, Missing EBPV, Edge Juice with Attitude, Few leaves added here and there, 35" BFGs, 16x10 Eagle Alloys, Alpine W200
SLAPS Member #153