What would cause a 96 Ford F150 4.9 engine to run cool?
The thermostat is stuck open,
1) The thermostat could actually be one that is lower in temp (i.e. 185 deg instead of 192). 2) Temp gauge is inaccurate and shows to be cooler than is actually is.
Ford F150 Starter Location Based on my owning several Ford pickups over the last 20 some years, Ford F150 starters are located on the right [curbside / passenger side] of the engine, down near the bottom of the block [just above the top edge of the oil pan] and on the rear flange of the engine on which the transmission and/or clutch bell housing attaches.