O/d light keeps flashing, said in the manuel that transmission need service soon 104,000 mile just started 2 days ago. What do you think is wrong

Hi,

It could be several things. It has set codes in the PCM for a trans related concern. If the problem indicates a trans priority code it will flash the od light instead of the check engine light. I suppose Ford was helping to route work to the correct specialist tech in the shop. Most trans techs do nothing but trans work and most drive-ability techs do only performance and check engine light concerns. I am the only tech in dealership that does not reject work based on test outcome. If diagnostics reveals engine problem I tear down or replace, The other techs send it to a heavy line tech saying I don't do that type of work. One even will tell you he does not get his hands dirty.

You should be able to get the codes checked for free at autozone/ pepboys/etc. They perform this service and then try to sell you the part they think is bad. I have found that they misdiagnose the concern more often than not. If you will get the codes pulled and reply we can diagnose the concern properly.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!