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Fan

380 Views 6 Replies 2 Participants Last post by  xjy173
G
I tested my serpentine (or is it a V?) belt, and it appears to be fine, no play. There is no leaking from the water pump (that I can see), and it doesn't appear to be frozen.

However, when the car is bone cold (hadn't run for 24+ hours), and I started it, the fan fired up and never shut off. (I idled for about 5 minutes)...

Any ideas? Fan clutch? I've had no problems with over/under cooling, ever..??? Is this paranoia?

Thanks!

Jon - YJ94
http://www.obsessiveoffroad.com
Drive it till you break it!
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If it is an electric fan, then it doesn't have a clutch. The fan thermostat switch might be stuck in the closed position, sending power to the fan motor regardless of coolant temperature./wwwthreads_images/icons/crazy.gif
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Hey XJY, forgot to mention, its the stock fan...

Jon - YJ94
http://www.obsessiveoffroad.com
Drive it till you break it!
OK, Jon, if it is a clutch fan, then it should spin all the time the engine runs. Just to check if it is ok, with the engine off, try to spin the fan by hand. It should spin but it will be stiff if the clutch is good. If it spins freely, the clutch is bad and needs replacement./wwwthreads_images/icons/smile.gif
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7
/wwwthreads_images/icons/smile.gif My moonguy-in-chief/wwwthreads_images/icons/wink.gifof cooling says that the fan WILL run initially upon cold engine start, and then it should de-clutch in a very short time.....less than a minute.....and when you try to turn it by hand, it should feel "syrupy"....like the blades were in syrup./wwwthreads_images/icons/crazy.gif Can you tell that moonguy/wwwthreads_images/icons/wink.gif hasn't had his breakfast yet?/wwwthreads_images/icons/crazy.gif

CJDave
I never believe any statistics unless my moonguys /wwwthreads_images/icons/crazy.gif/wwwthreads_images/icons/wink.gif made 'em up themselves.
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Yeah, he's so hungry, he ate one of the "o"s in Moonguy!!!!/wwwthreads_images/icons/laugh.gif/wwwthreads_images/icons/laugh.gif/wwwthreads_images/icons/laugh.gif
Perhaps he thought it was a Cheerio????/wwwthreads_images/icons/wink.gif
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Darn, Dave, He put the "o" back!!!/wwwthreads_images/icons/laugh.gif/wwwthreads_images/icons/wink.gif
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