fan clutch delete??

Discussion in 'General Chevy & GM Tech Questions' started by quicksilver8817, Aug 24, 2011.

  1. quicksilver8817

    quicksilver8817 Rockstar 100 Posts

    i have a 1990 k1500 is it possible to remove the fan clutch and just have the fan run constantly ? if so, would there be any negative consequences ?
  2. MrShorty

    MrShorty Epic Member 5+ Years 1000 Posts

    Yes, it is possible. The way these fan clutches are designed, there's a "spring" on the front that expands and contracts with heat. If you disengage the outer end of that spring and rotate it the right direction, the fan clutch will be always engaged. I've done this a few times for diagnostic purposes.

    The main negative consequences: 1) greater noise as the fan will be spinning faster, 2) decrease in gas mileage as it requires some energy to spin the fan and draw air through the radiator (I think that is the main reason fan clutches were introduced -- to help nudge gas mileage up), 3) Possibly an increase in wear on the water pump (or whatever the fan is attached to) bearings. Nothing major. Depending on your reasons for disabling the fan clutch, I wouldn't let these stop you.
  3. Foxracer

    Foxracer Member

    you can also have some plave do aftermarket electric fans i had that done on my obs
  4. tbplus10

    tbplus10 Epic Member Staff Member 5+ Years 5000 Posts Platinum Contributor

    Another negative is sooner or later we will see colder temps, when it gets cold enough you really dont want the fan keeping the engine cold, it adds a whole other set of problems.
    Look for an electric fan, Ford Taurus fans are a suitable replacement and can be found cheap at recycling yards.

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