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Old 05-28-2016, 7:18am   #4
Sneaks
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Since it only does it when the is a low amount of air moving through the radiator, I would think blockage, or lack of fan function.
Check between the radiator and AC condenser, to see if there is a bunch of junk in there. Remove the air bridge, take off the top of the fan shroud, and shoot air between there, then run water all in there to remove anything that might be blocking the fins.
If that doesnt do the trick, then Turn the AC on max and see if both Fans kick on. Both fans should automatically kick on whenever the AC is turned on. If both fans arent running, then there is a a good place to start. Could be a bad relay.
Also check the relay connections for anything loose or broken.
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