Mechanics

OVERHEATS WITH AC ON AFTER 12 MI-NEW RAD,CAP,CAP,THERMOSTAT,FAN CLUTCH, SENSOR CLUST GAUE -TURN HEATER ON FULL AND TEMP COMES DOWN

1998 Nissan Pathfinder • 150,000 miles

After driving approx. 12 mi. With ac on it overheats-turn off ac then turn heater on and temp will come down-also new fan clutch, turn ac back on and it will overheat-when idling with ac on temp stays normal-leak test good-eng rns smooth and noises-what could be the problem
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Coffeeman
May 25, 2012.



Is the A/C condenser fan turning on with the A/C? Radiator core not part blocked? Excessive build op of litter between radiator and condenser causing diminished air flow? All should be checked first.

Mhpautos
May 25, 2012.