I noticed the speedometer needle on my new truck, only 1 month old, was not moving for a minute or so, stuck on 20 mph, then suddenly shot up to the normal speed. I didn't hear the cable making noise which happens when the cable goes out. Is it possible the cable just needs to be lubed or could it be defective? Thanks for your responses. Bob.

 

The speedometer is digital on the 99 F150.
There is no speedometer cable.
If you have disconnected the battery for any reason it will do this on first startup. (computer looses memory)
Everything should be fine on out.

 

Sorry. I don't mean the digital read-out showing your mileage, i mean the "needle" indicating how fast you are driving.

 

bob1,

that is what 54regcab is talking about too. The speedometer and odometer are digital on the 99s and controlled by the computer.

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'99 XLT S/C 4.6 Auto 3.55 LS Oxford White,Orlando appearance package, trailer tow package, keyless entry, A.R.E. Hard tonneau, ventvisors and bug guard all painted to match, limo tint, 5 spoke aluminum wheels, Kenwood 6 Disc, black Back Country nerfs, Buccaneers front license plate! I Luv it!

 

Perhaps it's better to say is the speedometer is "electrical". I think the needle deflects a certain amount based on a voltage received from the tranny (via ECU?). I don't know if the signal is digital or analog. The days of cables and gears are gone though.

Neal

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1997 4x4 Expedition- 4.6L, true dual exhaust w/glass-packs, K&N air filter, SuperChip, airbox mods, Edelbrock shocks, 285/75R16 BFG ATs, Optima "T-Bone" wheels, and Clarion In-dash CD player.

1993 4x2 F150 Reg. Cab LWB- 5.0L, cat-back dual exhaust w/glass-packs, K&N air filter, Superchip, fresh paint, and Line-X bedliner.
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