Missing EBCM
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Junior User
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Missing EBCM
As stated in title we bought a truck from auction and the ebcm is not there. My ? is i do not have a speedometer and i want to make sure that the speedo goes through the ebcm. Also will it hurt the trans being there is no speedo signal. Thanks in advance
Lead Driver
Joined: Sep 2007
Posts: 8,180
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From: Scio, OR
OK. I understand now. I have zero knowledge of big truck stuff, so I'm afraid I can't help. Hopefully someone else who knows about that kind of stuff can.
There is a Large Truck forum right below this one. I don't know if an F550 would fit into that category or not.
There is a Large Truck forum right below this one. I don't know if an F550 would fit into that category or not.
Cargo Master
Joined: Jan 2001
Posts: 2,726
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From: Slatington, PA
F550's fit into the SD forum. Come on down to the 99-03 7.3 forum.
The speedo runs off of the VSS thats mounted on top of the rear differential. When they go bad, you'll loose the speedo and usually get an ABS light because it can't sense the rear axle speed. As far as affecting the trans, it will mess with the shifting since the truck doesn't know how fast its going.
The speedo runs off of the VSS thats mounted on top of the rear differential. When they go bad, you'll loose the speedo and usually get an ABS light because it can't sense the rear axle speed. As far as affecting the trans, it will mess with the shifting since the truck doesn't know how fast its going.
Cargo Master
Joined: Jan 2001
Posts: 2,726
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From: Slatington, PA
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Junior User
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Thanks for moving the thread. Also thanks for the replies I do understand the vss part of the system. Where i am lost is does the signal go through the brake control module. In other words will not having the brake module on the anti lock brake pump will this disable my speedo
Logistics Pro
Joined: Jun 2005
Posts: 4,243
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From: AZ
Thanks for moving the thread. Also thanks for the replies I do understand the vss part of the system. Where i am lost is does the signal go through the brake control module. In other words will not having the brake module on the anti lock brake pump will this disable my speedo
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