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Engine temp

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TeamSaris Enthusiast

TeamSaris

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Anyone else running just a touch over 210? My 2015 5.3 never did. Running a 2019 5.3 DFM. Seems to hover around 210-215 and that's without a heavy load or anything. Not too worried about it, just curious to see if everyone else has the same.

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Grumpy Bear
Grumpy Bear

My 2015 always showed 210 F. I removed the 207 thermostat and installed a 180 F. Still reads 210 F. 

econometrics
econometrics

#WorthIt ???

OnTheReel
OnTheReel

I think we tried to pattern what trucks got them in a thread a few months ago and I never made any sense out of it. My 6.2 doesn’t have them. Thought it was because of NHT but then someone else with a

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K455 Enthusiast

K455

Posted
Posted

Trail boss here 5.3 my coolant temp is a hair past 210

TeamSaris Enthusiast

TeamSaris

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Towed 5k lbs up a decent hill at 60mph today. Temp didn't budge. Ill keep an eye on it but its probably fine. 

econometrics Senior Enthusiast

econometrics

Posted
Posted

Yeah, RST Z71 with 5.3L DFM here. Runs just a tick past the 210 line all the time, as others have reported. 

 

I don’t even remember now what my 2007 5.3L ran at now. 

Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted

My 2015 always showed 210 F. I removed the 207 thermostat and installed a 180 F. Still reads 210 F. :rolleyes:

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AMPRG Enthusiast

AMPRG

Posted
Posted

My LTZ 5.3 DFM is so low. may be around 180 and lower most of the time. In the past 6800 miles I barely saw 200. I'm not towing any load. 

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted

My 6.2 never seems to go above 200 no matter what. This was pulling a small trailer today, about 70 degrees outside. Not sure if they have a different T-Stat or what but I found this thread interesting. As I recall my 2016 would have the needle straight up at 210 no matter what.

EA21489F-365B-4D87-A31E-81A08A1038B3.jpeg

Limelight Enthusiast

Limelight

Posted
Posted
4 minutes ago, OnTheReel said:

My 6.2 never seems to go above 200 no matter what. This was pulling a small trailer today, about 70 degrees outside. Not sure if they have a different T-Stat or what but I found this thread interesting. As I recall my 2016 would have the needle straight up at 210 no matter what.

EA21489F-365B-4D87-A31E-81A08A1038B3.jpeg

I would bet money the analog gauges are not a "true" gauge,  whereas the digital gauges show the actual temperature. 

 

I've seen analog's in the past that basically have a "low", "at operating temp" and "high" movement of the needle with nothing really in between.  When the needle is actually put on the cluster if it's not perfectly lined up it could be left or right of the 210 a smidge.  Mine reads a hair over all the time once it's warmed up.

 

Just a thought- pure speculation based on past experience.  :)

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted
1 hour ago, Limelight said:

I would bet money the analog gauges are not a "true" gauge,  whereas the digital gauges show the actual temperature. 

 

I've seen analog's in the past that basically have a "low", "at operating temp" and "high" movement of the needle with nothing really in between.  When the needle is actually put on the cluster if it's not perfectly lined up it could be left or right of the 210 a smidge.  Mine reads a hair over all the time once it's warmed up.

 

Just a thought- pure speculation based on past experience.  :)

You may be right, but I hope not. I remember my W-Body Cutlass Supreme having a setup like that, but for oil pressure. Analog gauges, but only an oil pressure switch. Gauge just sat right in the middle if it had pressure.

 

Just makes you wonder why even bother with the gauge then if an idiot light would do just the same...

econometrics Senior Enthusiast

econometrics

Posted
Posted (edited)
1 hour ago, OnTheReel said:

My 6.2 never seems to go above 200 no matter what. This was pulling a small trailer today, about 70 degrees outside. Not sure if they have a different T-Stat or what but I found this thread interesting. As I recall my 2016 would have the needle straight up at 210 no matter what.

EA21489F-365B-4D87-A31E-81A08A1038B3.jpeg

12.5mpg in the previous 25mi? Ouch! Lowest I’ve been in my 5.3L is 14.6. ?

 

also, buckle up man! ??

Edited by econometrics
OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted
2 minutes ago, econometrics said:

12.5mpg in the previous 25mi? Ouch! Lowest I’ve been in my 5.3L is 14.6. ?

 

also, buckle up man! ??

Yeah, but I was towing my rolling brick of a utility trailer so it’s not that bad. :D

 

Doing mostly city driving unloaded during the week, I’m lucky to be over 15. She’s thirsty around town.

econometrics Senior Enthusiast

econometrics

Posted
Posted
6 minutes ago, OnTheReel said:

Doing mostly city driving unloaded during the week, I’m lucky to be over 15. She’s thirsty around town.

#WorthIt ???

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steve841 Enthusiast

steve841

Posted
Posted

Bwaahahahahah ...  mine fluctuates all the time.  I've had 2 updates applied at the dealer and still, this is what I see.

20181020_072137.jpg

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AMPRG Enthusiast

AMPRG

Posted
Posted (edited)
2 hours ago, steve841 said:

Bwaahahahahah ...  mine fluctuates all the time.  I've had 2 updates applied at the dealer and still, this is what I see.

20181020_072137.jpg

20181020_131920.jpg

My cluster is exactly like yours (digital gages). But your lowest temp is my highest. Usually, mine is between 185 (2 lines before 210) and 197.5 (one line before 210). In the past 6800 miles, I saw more than 210, only one time which came down immediately. 

By the way, why your RPM is 2000 on 70 MPH with cruise control? It should be around 1500 if you have 5.3L with 8 speed, and below that with 6.2L and 10 speed. Unless you were driving up hill. As I see, you were driving 9 miles in high RMP. Depends on the weather, this should be normal, specially if you are carrying some loads or towing. 

Edited by AMPRG

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