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Overheating on the highway. Electric fan

Discussion in 'Chevy Trucks' started by 94chevyz71, Mar 20, 2013.

  1. 94chevyz71

    94chevyz71 Junior Member
    Messages: 1

    :dizzy:I have a 94 1500 z71 with the 350 motor with a 8ft plow when ever i drive on the highway around 55 mph the truck overheat i am pretty sure it cause the plow blocking the air i check the fan cooling system etc eveything is good i have run this truck 20 hours straight plowing heavy snow only stopping for gas and bathroom no problem only driving on the highway it overheat i was told to take out my stock fan and put a flex fan on it but i dont see the different that would make also i was told to put and electric fan i got and electric fan from my part store they told me this fan can be mounted on between the radiator and the stock cooling fan so i leave the stock cooling fan and use both of then . Has anyone ever use one of this fan and did it make a different in overheating any help on my overheating issue would be great thank.
  2. Rubicon 327

    Rubicon 327 Senior Member
    Messages: 108

    Last edited: Mar 21, 2013
  3. secret_weapon

    secret_weapon Senior Member
    Messages: 437

    Do not do this, get a heavy duty fan clutch and lower the blade a little when on the highway. When I had a straight blade I had put on a curved/formed snow deflector and it actually worked wonders to get airflow over the blade. I posted pics and a little blurb about a while ago.

    Edit: Here is the link to my post. http://www.plowsite.com/showthread.php?t=96203
    Last edited: Mar 21, 2013
  4. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,390

    the electric fan will not keep up at highway speeds. I had a 454 with 2 fans and they couldn't keep up
    do the clutch upgrade, or don't go on the expressway
  5. leolkfrm

    leolkfrm PlowSite.com Addict
    Messages: 1,978

    do you lower the plow and angle it when on the highway?...when getting a hd clutch for the fan be sure that it is one!...fins extend to the end and squared