EMD

I just had the rear main seal replaced on my 94 mustang gt. when i picked up the car i noticed the speedometer was not working. Car runs and drives fine until you start to slow down for red light. As rpm's come down when slowing down at red light the car will just stall out. you can pop clutch and it will fire right back up and run fine. If you come to stop you can turn key and it will restart and idle fine as well. could this be some electronic issue from the speedometer not working? Car never stalled out before

Mike T

The VSS switch on the end of the speedometer cable, sounds like.