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P0528 Diagnostic Trouble Code Discussion for March 2015

Fan Speed Sensor Circuit - No Signal

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Trouble Ticket Help Requests for DTC P0528
Help Request Posted
2008 Ford F-350 Super Duty XL 6.4L MIL Lamp on, reduced power messag VIN: 1FTWW31RX8
P0528: fan speed sensor circuit no signal. on road test with modis scanner watching coolant and oil temp, noticed coolant temp increasing to 260* f oil temp at 180* f. my understanding they should be within about 10* f. now having flow threw radiator. infer red temp probe only showing about 165* f at h...
March 13, 2015