i've notice that my temperature gauge would drop everytime i would step on the gas and when i come to a complete stop it will go to the its normal temp as i push the gas the temperature gauge would drop. anyone know whats causing this?

 

http://www.youtube.com/watch?v=TLlkKo-zmq8

 

It could be the gauge cluster needle? also could be the wire that is detecting the temp of the coolant usually a yellow wire right by the thermostat.

 

Would also check to see if that sensor is either bad or not plugged in all the way.