Runs great and then dies???
Ok, i have a 91' Ford Ranger 4.0 5 spd 4x4 with the engine out of a 92' Ford Explorer automatic 4x4...Now, It starts right up and will idle and can drive it around for about 20-30 mins with no problems and then all of a sudden it just dies and will not start for about the same time it runs. The guy who did the engine swap on it gave up.... Any Idea's..... I've had the truck for 2 years and it has only gone 8 miles in my ownership..Please help!!