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Electric fan and RPM adjust

Discussion in 'General Chevy & GM Tech Questions' started by Michael Johnson, Feb 7, 2011.

  1. 91 Chevy Sub 1500, 5.7, 700r4/4L60, 3:42 gears, 4X4.

    Doing the typical newbie thing here and asking a lot of questions but I have just had this rig for a couple of months and am absolutely in love with it. I recently found a dual fan set up at the local pull and save and they only want $35.00 for it. The only thing stopping me from getting it and replacing the mechanical fan is was wondering if I will have to take it to my mechanic to have the idle RPM reset? I broke an alternator belt one time on a ford tempo and I thought it was going to tear it self apart at idle.
  2. 1991 Suburban

    1991 Suburban Rockstar 100 Posts

    I wouldn't imagine that the fan would make much difference at idle. But let me know how it works. I have the same Sub and am seriously considering the electric fan. I do a lot of playing in the desert at low speed and low RPM. Gets hot pretty quickly...
  3. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    If you have EFI the computer adjusts for engine load itself and there is nothing a mechanic can really do to it.

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