2000 Cadillac Deville. Only overheats under a load, (AC on and driving), Coolant is good, no front end damage, replaced thermostat, water pump
, temp sensor, flushed coolant system, made sure the radiator
flowed and well as had flow thru the block, no loss of coolant even though after about 5 minutes of driving the check coolant light comes on, no oil in the coolant, no coolant in the oil, and no white smoke out the exhaust
, heat works good. I can leave the vehicle idle for ever without it getting overheated, scan tool says between 210-225, i can turn the AC on and the temp fluctuates and hovers around 230, I can drive without the AC on and the temp fluctuates around the 230 mark, but if I turn on the AC, with in 3 minutes its overheating, the engine
hot AC off light comes on. What would you suggest?