Please help me someone,i have a 2004 impala (LS)3.8L that i 've changed out the radiator twice,(4)thermostats, and had the system flushed but my temperature guage would still go up when my car is at idle.I've also bleed the system atleast 8 or 9 times.Can someone give me some type of solution i'm about ready to trade it in for less problems.Thanks!

 

How high does the gauge go? Are you losing coolant? The sending unit or the gauge could be faulty. Do you have electric fans and do they come on in time?

 

Yes, the fans do come on time,The temp rises well above 265 degrees.By the way i'm not losing any coolant.

 

I'd pull a heater hose and see how much the waterpump is flowing

 

Did you check to make sure the gauge is accurate? Also you changed just about everything except the water pump, so maybe cleveland63b is right.