temp sensor?

[irichjohn]

just wanna know wer is the temp sensor located.u think i shud change the temp sensor coz i already change the t-stat,water pump,radiator,no leaks but still the temp gauge went hot wen im moving my car but if the car is not moving just idling its in normal temp.sometimes the temp is hot sometimes its normal.how to take out the air in the system.wer is the bleeder valve located?sorry folks lot of problem & i dnt know how to fix this.thank u so much.