Fan clutch went out. What are my options?

#1
2005 Buick Rainier 5.3 AWD 142k miles
My stock fan clutch likes to fully engage for no apparent reason. It's 20-40 degrees outside right now and my fan keeps engaging. Sometimes for 3 minutes sometimes for 30 or more. Anywho this is getting old. Stealing power and plummeting my mileage.

I've read about electric fans and mechanical clutches. Pros and cons for both??
I think I would prefer the electric fan idea. However I've read that it can be tricky with the ac. Is there no way to activate the fan off the stock wiring? I would prefer not to wire it to the a/c clutch. I can't fathom spending 200 on the wiring harness from pcmofnc. I have access to a tuner to turn off the CEL. The extra 1 MPG claimed would be nice and getting the extra HP gains sound good too.
 
#2
I drank the efan Koolaid and they sucked. Poor cooling and A/C in hot weather and a PITA to adapt. Expensive too.

Best bet is a tune to kill the fan codes and get a regular thermal fan for a 2008/09. Yeah, the electro-viscous were so bad, GM went back to good ol' thermal. You'd also get other benefits from the tune as well. The 5.3 really wakes up with it. @limequat (Jeremy) at lime-swap.com can do this for $99 compared to the hundreds at other places for the V8.

Our radiators are marginal at best and the engineers compensated by using a mechanical fan instead of efans.
 
#3
I drank the efan Koolaid and they sucked. Poor cooling and A/C in hot weather and a PITA to adapt. Expensive too.

Best bet is a tune to kill the fan codes and get a regular thermal fan for a 2008/09. Yeah, the electro-viscous were so bad, GM went back to good ol' thermal. You'd also get other benefits from the tune as well. The 5.3 really wakes up with it. @limequat (Jeremy) at lime-swap.com can do this for $99 compared to the hundreds at other places for the V8.

Our radiators are marginal at best and the engineers compensated by using a mechanical fan instead of efans.
any specific brand I should look for? I have an HP Tuner than I can get my hands on. I think it's $100 to unlock my vin. But then I could use it in the future too. I read something about going into decreased power mode? Is that a thing? or is it just the CEL

And can you use my fan blades on the mechanical 1?
 
#4
Hayden is our go to brand on these. Dorman is junk.

If you have HP Tuners, you`re golden. You'd have to research on codes and stuff to disable.

Reduced power mode happens only when there is a fault in the throttle system.
 

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