2004 Ford Sport Trac 4.0L V6 with code P0731 and P0733

Question

Why? While the truck is running and is going uphill, the truck lunges, and the change from drive goes into overdrive and the light goes on blinking. I had filter and fluid changes last year.

Answer 1

Hi there,

These codes indicate the 1st and 3rd gear ratio is incorrect. Here is some info for you.

P0731 FORD Code - Incorrect First Gear Ratio
Read more: https://www.autocodes.com/p0731_ford.html

P0733 FORD - Incorrect Third Gear Ratio
Read more: https://www.autocodes.com/p0733_ford.html