95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

My engine fan is running all the time. Normal?

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Old 09-30-2009 | 06:03 AM
  #21  
altf4's Avatar
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From: Southeast Ohio
Originally Posted by pat161
Sorry, I didn't mean to be a jerk, I guess I could have worded that second post differently. I am glad you got it sorted out though, it really is amazing how much power that fan robs. I would do an electric fan swap but I feel a properly working belt driven fan is the most reliable choice.
no worries

Originally Posted by txrider
If it's frozen up it'll cost mileage and power. But make sure someone didn't replace it with a non clutched flex fan.
I ran an entire tank through with the thing broken, and averaged 18.5. I'll check to see what I get with it fixed now.

It was the OEM fan clutch also.
Old 10-01-2009 | 06:36 AM
  #22  
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From: SLC, UT
Every 3.4L V6 (5VZ-FE) engine I have ever listened to has always had the fan spinning when it first starts up (roaring). Mine does it. But after a little bit, it turns off but the fan is still spinning only not at the same speed. I figured that when it turns on when you first start up it is normal. If the temp outside is about 50-60 mine rarely turns on unless I am going really slow or up a canyon. If the temp outside is closer to 80-100 then mine is at least at half speed all the time. I can hear the difference between off, half on, and full on just like an electric fan on pretty much any car.
Old 10-02-2009 | 01:09 PM
  #23  
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My wife asked me "when do I pull out of the garage after starting the truck".

I said, when you hear the fan turn off. That is about 45-60 seconds depending on the temp outside.
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