So I have a 2002 trailblazer ls 4.2l i6, I’ve just recently replaced the radiator,fan clutch, water pump, battery, alternator, and air intake is next. Now my issue is I have the same general problem most people have with their fans being really loud sounding like a jet engine or possibly a semi accelerating. Now I’ve been suggested to replace all the parts I’ve replaced. And it hasn’t changed anything. Instead of the fan pushing at high speed and sound at all times, now that I’ve replaced the parts, the fan speed/sound raises and drops with the rpms. Now what options do I have to try and figure this out?