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Old 05-01-2009, 09:59 AM
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Chris Stewart Chris Stewart is offline
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Re: 91 Bravada Cooling Problems

Does your cooling fan roar when you get high coolant temperatures?
Most fans roar on a cold startup then get quiet pretty quick, then when the coolant temperatures get excessive, the fan starts roaring again.
I found this on my Dodge diesel. I use a piece of cardboard to block 3/4 on the radiator during very cold spells in the winter. One warm day going up a steep hill, the fan started roaring and the temperature gauge showed the coolant approaching 230F. I pulled to the side of the road, left the engine running and removed the cardboard. The coolant cooled down to normal in seconds.
This proved to me that the fan clutch is in good working order.
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