What would the effects be if the coolant fan was left on the way that it is?

96 Mercury Mystique
Songy XPlod CD Player
Blankplunt 6x8's
Indeglo Petals
Hyper White Low Beams
On the Way;
Fading Tints
Painted Interior
"If You Can See my tailights and smell my exhaust then you are driving a Honda"