How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Transmissions
Satisfied Customers: 1621
Experience:  16 yrs. experience with auto, manual, & CVT drivelines
2499435
Type Your Transmissions Question Here...
Chris (aka- Moose) is online now
A new question is answered every 9 seconds

2005 expedition just had the trans fully rebuilt. Trans

Customer Question

2005 expedition just had the trans fully rebuilt. Trans shifts great but the o/d light blinks ?
Submitted: 10 months ago.
Category: Transmissions
Expert:  Roy replied 10 months ago.

good morning my name is ***** ***** I will assist

the light blinking indicates a fault in the transmission control system. it will store a code. once we know the code, we can further help you. if you just had it overhauled, most likely this is going to be a warranty issue with the shop that performed the work.

Roy

Customer: replied 10 months ago.
Im not getting any on board computer codes just the blinking ?
Expert:  Roy replied 10 months ago.

it will be stored in the tcm module, not the pcm for engine controls. do you have a scan tool?? a code reader may not pick it up.

if not, then you can go to a parts store and they should be able to read it for you for free.

Roy

Roy

Customer: replied 10 months ago.
The tcm is located where
Expert:  Roy replied 10 months ago.

The TCM for the transmission is mounted on top of the main control valve body. The control module for the transmission has been designed to operate correctly in the environment in which the TCM is located.