temperature sender

I think it is on the rear of the right bank head. Remember, "right" & "rear" are in relation to the transverse mounted engine.

josua said:

I need a little info guys, don't know if I'm blind or just stupid. Temperature guage reads high but it's not really hot! 96 eldo northstar. Where is the sender. I cannot find it. Any help appreciated. Thanks

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If the gauge isn't right, how do you know if it is or isn't too hot?

I put a thermometer in the coolant tank. Gauage is just shy of the red mark.

"red mark"? What does that mean? Does your thermometer tell you how many *degrees* it is?

The Red Mark On The Dash Guage1

josua said:

I put a thermometer in the coolant tank. Gauage is just shy of the red mark.

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First problem: You're measuring temperature in two different places - the surge tank with your thermometer and the block with the gauge. You can still have an overheating problem (poor/no water pump flow) or other issues (blocked surge tank line for one) that can create this condition. Just because all is well in the surge tank does not mean all is well in the motor. While its possible you have a bad sender that's been a fairly rare occurrance in my experience. Start with checking the water pump flow, belt and tensioner. Is it leaking or using coolant?

The water pump and belt were replaced about 7 months ago. Hasn't used any coolant. When the car sits overnight, and you start it in the morning, the gauge goes up to between the second and third mark right now. So now, when the engine warms up, the gauge shows hotter than it really is? Sitting in traffic watching that gauge push the red mark really makes me nervous. Yeah I know, don't watch the gauge.

josua said:

The water pump and belt were replaced about 7 months ago. Hasn't used any coolant. When the car sits overnight, and you start it in the morning, the gauge goes up to between the second and third mark right now. So now, when the engine warms up, the gauge shows hotter than it really is? Sitting in traffic watching that gauge push the red mark really makes me nervous. Yeah I know, don't watch the gauge.

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Actually you do need to watch the gauge or risk smoking a very expensive motor to fix. The N* is designed to warm up quickly but the temprature gauge shouldn't go past straight up. I would suspect the thermostat may be bad - was that replaced when the water pump was done? If not, I would start there. Do the cooling fans run a lot? Do they run at all? If the t-stat has been done I would look at the radiator fan(s) next, once the temp gauge gets past 12:00 they should run a lot if not continuously. You may be right from the beginning that you have a bad sender, but I'd check other things first.