If the fan runs more than it needs to to keep the engine cool then it is robbing a bit of power to spin the fan.
how do replace a power steering hose on a Chevy c-1500 pickup truck
If a 88 Chevy Pickup Truck seems to be low on power the timing should be checked. The fuel pressure and fuel pump should also be checked and may be the source of low power in the vehicle.
Could be a blown fuse.
Bad lockup clutch in the torque converter possibly.
1350-1450 @800rpms
No you can't.
a Chevy small block will drop right in ha that will get that little turd to move
There are many relays in that vehicle, most are located in the power distribution box under the hood.
Mirrors Locks (MIR LKS). The fuse is for the power mirrors and power locks on the vehicle.
Perhaps it is designed to fit multiple years and/or models
300 horse
Check to see if it is getting power - if so replace motor - if not check fuse, relays and switch