water pump update and ?????

hay guys I installed the new water pump and it is working great .thanks for all the info on it.now I have a new problem..when the pump went out the temp light and the buzzer came on I thought it would go out after I put the new pump on but it didnt..how do I get this buzzer off and the light????????also when I took the pump off the thing that turns the water had slide off the shaft thats fine but why in the world would you have a plastic thing on a round shaft????It just slip on and off and was plastic, the new one is all metal just a thought...also the little old m11 is set at the factory hp and (280) I thought about turnning it up how far can I go on this thing..Its a dump truck with 4.11 just slow to go but once it go it goes..thanks again guys

 

its a freightliner I didnt let it get to hot I show the gauge go up and the the temp went down and I turned it off..I looked at it and see 3 different sensor that look like it might be a temp sensor...I know I should have 1 for the light and 1 for the gauge right..I have one on the surge tank and then one on the front of the motor by the pulley and one on the side of the motor about a foot from the water pump up by the head....what would I have to do to turn the power up on this m11????I get about 6.5/7 mpg how bad would it hurt fuel mil.?????thanks for all your help.......

 

hay thanks coalhualer yea I tried unplugging all the ones I thought was for the temp maybe I unplugged the wrong ones but the buzzer and the light stays on ...I just my have to take this old thing to s shop somewhere....I called the freightliner dealers they say its a sensor but dont know where or which one..

 

thanks guys its a 1997 freightliner I hope I find this thing cause this buzzer is just killing me....