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Dakota 4.7 overheat
2000 Ext cab 4x4 4.7 auto without tow pkg. What is high end of operating temp. Is mine running too hot. In summer with 90+ ambient temp, A/C on, in city and stopping at red lights the gauge will go up to the right side of the "0" of the "210" reading. At this temp the fan will slow down, changed fan clutch , no difference. Can shut off ac and temp will drop to left side of the "1" at which time the electric fan will shut off and the mechanical fan will be turning faster than at the hotter temp. At constant 50MPH+ for a mile or more the temp also sarts dropping and will stay on top the "2" even at 80MPH. So it seems it is an air flow problem but radiator is not blocked.