transmission overheat and thermostat circuit fault

Question

hi sir..i have range rover 2004 with 4.4ltr x5 engine....recently i replace the engine with the same one 4.4 and transmission oil seal and original transmission oil after that there is a new problem like transmission overheat. then i change the thermostat and transmission oil cooler and one more thermostat on radiator...but the same problem is there. i checked in computer its shows thermostat circuit fault..plz help meee im tired nowwwwww

Answer 1

Over heating condition . how the operation of the cooling fan ? If the cooling fan is not operating correctly you can expect some overheating to continue.

 When the engine reaches warm up temperature, with the engine off the cooling fan should have some resistance when spining by hand , If it moves without any resistance it is a good indication the cooling fan is not operating as designed