Hi can anybody help me my overdrive light keeps flashing on and trainee fault light keeps coming on it's running at high rpm's before switches gears is my transmission slipping?

 

If the OD light is flashing and the trans fault light comes on, you need to read out the codes. It takes a high end OBD2 scanner that can read out Ford transmission codes. To buy one is about $150 so you need to take it to a shop. The free code reading service at parts stores is not capable.

Please post the year and model of your truck, along with which engine and transmission.

 

2005 f150 5.4

 

No matter which transmission you have (it isn't apparent from what you've posted) you need to have the codes read to have any idea of what's wrong. The places that read codes free CANNOT read these codes. You need either a good independent shop or a Ford dealer.