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Engine Fan Wobble

3 reading
12K views 2 replies 2 participants last post by  odblevi  
#1 ·
When fan is engaged and the rpms are high I was hearing a strange noise so I lifted the hood and used throttle cable to bring rpms up and noticed the fan hitting the upper radiator hose and I just recently got this truck and noticed the radiator was hit at one time by the fan. Thinking it might be the fan hub maybe. You can see the fan start to go way out of wack when engage and high rpm like its out of balance or off center? Thank you for taking the time to read and your input
 
#2 ·
check the bearing support on the fan hubfor play, or simply see if it is a loose fan, either will allow the fan to move outside it's normal range. In any event this should not be left very long as one day the fan could totally part company.