Got a Problem.....( i think)

[antwawn]

Ok here is the deal...im driveing home from College going the speed limit. some cars pass me at a higher rate of speed so i decide to get behind them and follow. as i start to get on it...i notice my engine Temp needle drop all the way to COLD and the rise a little and drop and rise and drop kind fast like....so i slow down naturaly...as soon as i go the speed limit it slowly returns to operateing temp(right below half for me)...so i decide to test something...i gun it again..and what do u know it does it again....but it NEVER over heats...just under heats...i think its a sensor or somethin like that. ummm i by passed the heater core and the throttle body...but this is the first time this have happened...i put my hand on the manifold...and it was at a comfortable temp..i could keep it there...what up?

[pelado]

Like you're thinking, could be the temp sensor that drives the gauge is going bad.

[Hy300]

I'm thinking the same as Pelado. The sensor may be only able to handle comfortable ranges, once you start heating up a lot it'll go crazy. I'm starting to worry this may cause a failure in something. So replacing the sensor may not be an idea to put off.

[antwawn]

thanx