Sorry Guys.. I couldn't find a tread to post my question so I created a new one...

I acquired 2 vehicles at the first quarter of the year both with mitsubishi intercooler turbo diesel engines. Both top mounted. It is only now that I remember than when I turn on the ignition switch to ON.. prior to starting the vehicle... I can hear the turbo fan running already....

Both vehicles underwent some minor electrical issues which were easily resolved... but I dont hear the fan running anymore after turning on the switch. The turbo works fine.. special on my RVR... it kicks in at around 2.5K RPM.. and you can feel the kick and the ensuing jet like whine of the engine.....

It just occurred to me that is it possible the fan doesn't work ... doesn't force the cold air in...? Just asking guys if this is normal or should I have the turbo fan checked?