I finally had a chance to look at this again. Before I started the diesel, I held the fan pulley still and could not rotate the fan. Then I started the diesel. As soon as the air built up to tension the drive belts, they chirped and the fan started to turn. It was blowing enough air that you had to hang on to the engine access doors when opening them. Then I turned on the AC compressor and the fan speed did not change. So it would appear that my fan clutched is locked in or perhaps replaced with one that is not two speed? I looked and did not see any wires going to the hub.
Also, I do not have transmission temp gauges etc. Does anyone have a recommendation for a meter that would plug into the DDEC to provide some real time information?
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