Hot Start

rjp323

1991 w/ 5.8, will not restart when hot. Changed started, but same symptom. Very slow turn over on motor. Any suggestions?

Could be a resistance, loose/bad connection or heat soak issue. I would start with the battery cables. Shielding the starter from heat could also help, especially if you are running headers. I had this same problem with my 89 Bronc and also had the 5.8. Would not restart hot but after cooling off would fire right up. I ended up going with a new high torque starter vs reman and changed out the battery cables which seemed to help.

here's a diagram for the future hope that helps the diagram is for the 5.0 and the 5.8

Could be vapor lock also.
Has insulation around the fuel lines broken down. Or fuel line Re routed .