BAC Forum

General Boards => Technical Support => Topic started by: Mark Beavin on January 15, 2019, 10:49:10 AM

Title: Electronic Speedo
Post by: Mark Beavin on January 15, 2019, 10:49:10 AM
Has anyone repaired their electronic speedometer?  Mine starts out a 0 and as soon as I roll it sweeps all the way around and stays there until I turn the ignition off. The odometer part works fine so I'm sure the sensor is fine where ever that is located. Been using a MPH app on my phone but would like to fix the original gauge.
Title: Re: Electronic Speedo
Post by: Mike Shumack on January 17, 2019, 11:13:34 AM
Mark, there are shops that rebuild speedometers. Yours appears to made by Spartan (according to info at the Beaver Coach Assist). But I would check the connections before doing anything with the speedo itself.

I don't know how your speedometer is connected but I would think there has to be receiving info from the transmission output sensor. I would check that area (transmission) to be sure there are not any loose or chaffing wires - then same at the back of the speedometer. I don't know that having the odometer working means the wiring/sensor is good and speedometer itself is therefore bad. If you contact a shop that rebuilds these, they may be able to give you some troubleshooting advice.

Googling the manufacture of your speedo didn't come up with anything - except some links to rebuilders and this link (maybe to purchase a used one)
 Such as (this is example, I don't not know anything about this company) https://www.instrumentclusters.com/

The screenshot below came from the "96 Monterey Dwgs" parts list at the Coach Assist section but I'm not sure you can trust the info 100% so if you can get to back of the speedometer, try to verify the manufacture and model of speedometer. http://beaveramb.org/coach-assist-members-only-new/

Here is a link to a thread that might help if you need to replace your Speedometer http://beaveramb.org/forum/index.php?topic=143.0

Lastly, there are some RV salvage yards that may have what you need. Such as https://rvcomponents.visonerv.com/cgi-bin/f/motorhomecluster-gauges.pl
Title: Re: Electronic Speedo
Post by: Mark Beavin on January 17, 2019, 04:08:20 PM
Mike,
  I was told to check the speed sensor at the output of the tranny. The plug was wet with tranny fluid inside. I cleaned it with electronic cleaner and it did not help. Must be a seal that is out on that sensor so it needs replacing anyways. Maybe that will do it.