2002 Chevy Impala with 92.000 miles is overheating. Radiator, water Pump, Hoses and everything to do with that has been changed out. The water is not going out of the radiator but the needle is up and just about in the red danger zone running hot. I am a 76 year old woman and I have watched my husband work on my sons car trying to fix the overheating.
I'm guessing that he also replaced the thermostat and you just forgot to mention it.
The car isn't losing coolant.
That pretty much leaves either air in the cooling system, the coolant temperature sensor, or the fans aren't working right.
That Impala uses a 3 relay radiator fan circuit. Fans Low Speed kicks on around 210 degrees.
Fans High Speed kicks on around 240 degrees.
So if the Low Speed isn't working the car will run hot because not only does the High Speed kick on above 240 degrees, it also Kicks off below 240 degrees. (The computer expects the Low Fan Speed to handle between 210 and 240 degrees and if the Low Speed isn't working you'll run hot) ((constantly above 240 degrees)).
In the underhood fuse box#2 these are the 3 fan relays and the 2 fan fuses. Check them. This is a case where he can't swap the 3 relays around to troubleshoot a faulty relay because they're all part of the same circuit.
