Hi I bought American used Ford Explorer 2007 Eddie Bauer v8 4.6 before 3 Years here in Saudi Arabia, It was winter when I bought the vehicle, everything was good I loved the vehicle and the summer starts. Whenever I stuck in traffic the vehicle starts overheating with AC on, but if AC is turned off or shift to N or P the temperature gauge drops to normal within 5 to 7 minutes. I went to local ford dealer they denied accepting American specification vehicle having mileage more than 100,000 KMs I went to different American cars workshop whatever they told me I have replaced. In first summer I replaced the following but there was no change Radiator replaced Radiator cap replaced Fan clutch replaced Installed additional electric fan outside as per GCC specification but no change in overheating 2nd Summer AC compressor replaced AC condenser replaced Catalyst converter replaced Water pump replaced (Existing was also like new) Thermostat replaced second time Throttle Body replaced Installed two additional electric fans of GMC 97 attached with radiator in front of main clutch fan but no change in overheating so last option was to replace head gaskets Head Gaskets replaced with all required lathe works but no change in overheating 3rd Summer (now a days) Replaced engine (American used engine) Fan clutch replaced once again Thermostats removed but no change in overheating New thermostat reinstalled. HVAC heater hose replaced. but no change in overheating I checked with infrared thermometer when vehicle is overheating the temperature reading over radiator upper pipe is from 210 to 225 F and over radiator lower pipe is also same 210 to 220 F and near thermostat 225 to 230 F inside plastic manifold 230 to 237 F over head cover 210 to 220 F and temperature gauge needle hits first line or is on 80 %. What else should I replace to solve this issue Could transmission cause overheating engine ? Could electric generator causes overheating ? Could PCM malfunctioning could cause overheating ?
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