when my tachometer quits working, why does my auto trans quit shifting right? It is a 7.3 diesel non turboed

1993 FORD F-350
165,000 MILES
Avatar
KDC1806
  • MEMBER
  • 2 POSTS
When my tachometer quits working, my transmission (auto trans) quits shifting right. I know its something electrical, but where do I start looking?
Nov 20, 2011 at 11:14 AM
Advertisement
Avatar
FIXITMR
  • ✓Experienced Mechanic
  • 9,990 POSTS
no CEL?
Nov 20, 2011 at 11:20 AM
Avatar
FIXITMR
  • ✓Experienced Mechanic
  • 9,990 POSTS
you could check/replace the tach sensor.
Nov 20, 2011 at 11:31 AM
Avatar
KDC1806
  • MEMBER
  • 2 POSTS
where is the tach sensor located at?
Nov 20, 2011 at 1:43 PM
Avatar
FIXITMR
  • ✓Experienced Mechanic
  • 9,990 POSTS
on the injection pump gear cover.
Nov 21, 2011 at 11:48 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.