speedo

[stroker01250]

my 05 speedo is acting up. At a dead stop the speedo is showing 10mph. I shut my truck off a few times but no joy. I know on my old 01 there is a senser in the rear diff for the speedo. Is the same true for my 05?

[portcity_gt]

I'm pretty sure these tucks have two speed sensors, the one in te rear end on the abs ring, and one in the trans.
If the rear one is bad you should also have a abs light.

[06 f250 man]

Mine was just doing the same thing. It ended up being the motor in the speedo. U can send it out and have a new motor for less than 100 bucks

[stroker01250]

Where is the speedo motor and who would I send it too?

[portcity_gt]

In the cluster, I don't know where to send it.
But I would suggest scanning the truck before throwing parts at it.

[ZMANN]

the VSS vriable speed sensor is in the rear dif like your old truck

I have not found whare the 5R has another sensor but it is possible
since I have read some old threads where if the dif sensor fails it defaults to the trans but the dif cares not about gear ratio but the trans would


Mark K or someone better can qualify

other than that it looks like the 3 hall effect senders from the front and 1 rear hit the ABS module and then to the display ..


I would check the outputs using a diagnostic like A/E or better

[06 f250 man]

I replaced all off my wheel sensors and it was still doing the same thing. I sent mine to Tanin auto electronix 262-4564147 is the number. Like the other fellas say I would check the wheel sensors first cause sending it out your truck will be down until it gets back. Keep us posted