Temperature fluctuations

[JASONB42186]

I noticed my temperature gage hanging out in the middle and thought it was odd as it usually stuck a little below middle. Finally my radiator started leaking so yesterday I changed out my radiator, put in a 203 thermostat and drive belt. The temperature gage is still hanging out in the middle so I put my code reader and did a live monitor of the temperature as I drove. Is it normal for it it to get to 212 at times while driving? The gage would still stay in the middle. It consistently started between 203 and 213. Thanks for any insight

 

[turkeybird56]

YUP, IMHO. I have a 5th Gen, and just had a new E Fan installed. Truck is stock 203 thermo. Runs anywhere from sometimes 197 to 212/213. If sitting a long time and hot out will climb even some more. Talked to SA< he told me point blank: quit watching the digital, look at the "manual gauge". As long as stays half or below, be OK.

 

[RamDiver]

I like the digital gauge because I can monitor the thermostat opening and closing.

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[turkeybird56]

I like the digital gauge because I can monitor the thermostat opening and closing.

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I have my stats displayed just not watch as much anymore

 

[JASONB42186]

I have my stats displayed just not watch as much anymore

My clock spring is broke so I can’t . I had my obd2 scanner plugged in while driving.

 

[Rlaf75]

As long as it's in the normal range you should be fine. You can also try flushing the cooling system and heater core if you wanted to

 

[aszumilo]

My truck had similar fluctuations. Then the Water Pump disintegrated. Replaced Water Pump and associated stuff. No more fluctuations.

 

[JASONB42186]

My truck had similar fluctuations. Then the Water Pump disintegrated. Replaced Water Pump and associated stuff. No more fluctuations.

Did it ever get over halfway on the gage

 

[jws123]

Did it ever get over halfway on the gage

Mine never goes over half way it will get there and go back once tstat opens if it goes past half I say you still have air in the system try re burping system.

 

[aszumilo]

Did it ever get over halfway on the gage

Yeah, usually at stop lights. Driving would bring it back down slightly.