make sure you replace the one with only one wire. that goes to your gauge, the other 2 wire one is read by the PCM. or replace them both.

 

Will do. I will just replace both.

 

Well just stopped by Autozone since I was right by one while out. They only show a temp sensor and it has the 2 prong plug. I didn't see any other sensors from what I could see in the T-stat area.

Looking by the T-stat the sensor looks to have a 2 prong plug on it.

 

The other one is on the other side.

 

Yea, the other one is under the alternator. (hard to see).

And please, add all the info about your truck to your sig.

 

Ok got ya. Well guess off to Napa auto parts tomorrow see if they have one.

Thanks

 

Keep in mind, you have two..... you want the one to the passenger side of the thermostat housing. Should be a single wire connector. THAT is the one for the gauge.

 

Well got the temp sensor and temp sending unit replaced. Its a bit better but still running in the low 200's so thinking maybe a bad t-stat or the new radiator is not getting enough flow. I'll run by Napa and grab a new t-stat on the way home.

 

have you checked the coolant level? since you replaced a whole bunch of parts maybe there was some air in the system that has worked it's way into the rad.

 

The coolant hasn't changed much. I bleed out some air and let it run for a while. Got the sensors replaced and the gauge stayed around the 200 - 205 mark but when cold it doesn't seem like the Tstat opens up till around 220-230 then it will drop to about 200.


I talked to a mechanic that said check the temp of the radiator in and outlets. I got about 166-170 on the top and 144 on the bottom.

Just tested by the neck for the Tstat and got a reading of 209.