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86 F250 overheats with vacuum in radiator
Posted to Technical Discussion Forum on 2/2/2025 75 Replies

This 86 F250 with a carbureted 5.8L engine is one of my plow trucks. It never runs hot plowing the 2 miles of road or lot but will run hot on the highway at 50 mph / 2200 rpm or more. I never let it boil over, but the temp gauge reads full hot. It's 12 miles t... Login to read more.

75 Replies Received (View Replies)

 

car Vehicle Data

1986 Ford F-250 5.8L

Engine5.8 L
Trans4-speed Standard

car Vehicle Data

1986 Ford F-250 5.8L

Engine5.8 L
Trans4-speed Standard