Im having a few probs w my 2001 4.4i too. Fan quit completely, was the resistor...replaced and now blows again. It also blows warm sometimes at idle...was told I had a bad auxiliary fan, which I believe is the one in front of the radiator. About 800 to replace, trying to decide if I should try replacing it myself. I will try looking at the relay for the fan first...maybe that's the prob.

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Alex
'01 4.4i - Stock