[Georgeb]

Trans fluid and filter change last year. Normal trans temp per dash gauge around 200.
The temp did not return to a normal reading, but did lower a small amount when returning
To Hiway speed. Engine temp remained normal 190/200 .
Today I found the fuse for hydraulic fan cooler defective. I replaced it and fans run when
You turn on key
Could  hydraulic fluid be over heating and causing fan to slow??