[V8] Failing Speedo - Sensor p/n?

[Buchholz, Steven]

... I'm seeing some odd speedo behavior on #344 too ... very weird ... it works fine most of the time, but all of a sudden the speedo drops to -0- for some period of time and stays there.  It seemed to be most consistent if I took the car for a short errand run ... when leaving the place I'd have no speedo ... but I see it mid trip on longer runs too ... after a minute or two the speedo comes back.  

I had convinced myself it was the speed sender in the tranny because the trip computer was showing zero speed as well ... but upon further head scratching I realized that the speedo is likely to be sending the signal to the trip computer ... 

I'd say that before plunking down the bucks for a new sender that you do some tests to eliminate the instrument cluster as culprit.  

A very long time ago there was a V8 lister who claimed to have schematics for the V8 IC ... boy, I would really have loved to get copies of them!

Steve B
San José, CA (USA)
> 
> I have a failing speedo (dropping to 0, then springing back up).  I suspect
> it's the speed sensor.  Does anyone have a recommendation (other than the
> dealer) for a new sensor?  Any known partnumbers?  Thanks!