Lent the truck to a friend to rent a bobcat when he went to return it the check engine light came on and it kept stalling on him. Plugged it in when I could and got these three codes: Output speed sensor circuit malfunction, Cylinder 7 misfire detected, Missfire detected first 1000 revs. I havent gotten a service manual yet so with that in mind where should I start? I will be getting a manual shortly. Any help would be great.

 

How many miles? For the misfire codes, I'd start with replacing the sparkplugs and plug boots. Use dielectric grease on the connections when putting everything together. For the output speed sensor - what code did you get?

 

Code for speed sensor is P0720. Mileage is 63,000. Truck seems to run OK cold.