Speedometer not working after 5.0 HO swap September 04, 2010, 01:01:45 PM 85 Ford Thunderbird 5.0.....Swapped in a mustang 5.0 HO and T-5 Tranny. Ever since the swap my speedometer hasn't worked. Lights up just fine and everything just shows 0 mph. Sometimes when in reverse I notice it registering 1 or 2 mph. I tried replacing the speed sensor with a borg werner one from Oreilys but did not change the situation. Any ideas on what to look for or how to troubleshoot this? Thanks guys. Jason. Quote Selected
Speedometer not working after 5.0 HO swap Reply #1 – September 05, 2010, 03:00:38 PM Do you changed the cables with the engine? Quote Selected