# O/d light **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** ford, ranger\ **Created:** [October 5, 2012, 4:06pm UTC](https://community.cartalk.com/t/o-d-light/74824 "2012-10-05T16:06:04Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![BOOGMAN](https://avatars.discourse-cdn.com/v4/letter/b/7bcc69/32.png) [@BOOGMAN](https://community.cartalk.com/u/BOOGMAN)\ **Post date:** [October 5, 2012, 4:06pm UTC](https://community.cartalk.com/t/o-d-light/74824/1 "2012-10-05T16:06:04Z")
my 98 ranger od/ light is blinking and shifts hard took it to a tranny shop they rebuilt the tranny & replaced torque converter got truck back drove for a week got on highway o/d light blinking again took back to tranny shop he said truck needed good tune up to get a diagnostic reading tired of the excuses they give me.ready to take to another shop then sue 1st shop for bad work the ranger has a 4.0 v6 at 4wd any ideas? ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [October 5, 2012, 6:50pm UTC](https://community.cartalk.com/t/o-d-light/74824/2 "2012-10-05T18:50:06Z")
Miles? Codes? ---
**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\ **Post date:** [October 6, 2012, 4:05pm UTC](https://community.cartalk.com/t/o-d-light/74824/3 "2012-10-06T16:05:06Z")
the O/D light blinking means the Transmission Control Module has detected a fault. Did they tell you what the fault was? Can they even extract the codes? If the CEL is not on, a tune-up will not fix this either. ---
**Author:** ![danaross](https://avatars.discourse-cdn.com/v4/letter/d/e47c2d/32.png) [@danaross](https://community.cartalk.com/u/danaross)\ **Post date:** [October 6, 2012, 10:42pm UTC](https://community.cartalk.com/t/o-d-light/74824/4 "2012-10-06T22:42:23Z")
See if it’s the onboard computer. That can cause other problems too.