Engine temp

steve841 · May 5, 2019

It's a 6.2 .. .If I recall I was towing a small trailer at the time.

AMPRG · May 5, 2019

5 minutes ago, steve841 said:

It's a 6.2 .. .If I recall I was towing a small trailer at the time.

Read this:

http://gmauthority.com/blog/gm/general-motors-technology/gm-aerodynamics-technology/gm-active-aero-shutters-technology/

May be this is the reason. Look at your PRO codes and see if you have VTI in there.

I think you should be OK. It won't hurt if you check with the dealer too.

OnTheReel · May 5, 2019

Yeah, wonder if you have the shutters. Mine doesn’t and my temp sure as hell doesn’t do that.

UGADawgs · May 6, 2019

My build sheet shows I have them:

AMPRG · May 6, 2019

Just now, UGADawgs said:

My build sheet shows I have them:

Then how does your temp gage dance?

UGADawgs · May 6, 2019

2 minutes ago, AMPRG said:

Then how does your temp gage dance?

Doesn't. Starts cold (65-80), goes up to 210 pretty fast, within a couple minutes, and then stays there.

AMPRG · May 6, 2019

1 hour ago, UGADawgs said:

Doesn't. Starts cold (65-80), goes up to 210 pretty fast, within a couple minutes, and then stays there.

I checked mine. I don't have code VTI. Mine takes forever to reach 180. It sounds like VTI is for mainly 6.2L and some 5.3L Z71 packages.

In southern California I prefer not to have it ?

OnTheReel · May 6, 2019

18 minutes ago, AMPRG said:

I checked mine. I don't have code VTI. Mine takes forever to reach 180. It sounds like VTI is for mainly 6.2L and some 5.3L Z71 packages.

In southern California I prefer not to have it ?

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 non-NHT 6.2 also didn’t have them but another did. I’m fine without because it’s just another thing to malfunction.

bowtie2007 · May 6, 2019

Mine stays around 200 unless I'm towing. When towing 7000lbs, it fluctuates as shown above. It goes to about 220, then drops to about 200. That pattern continues the entire time I'm towing. I have the 6.2 with 10 speed.

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Minnvmax · May 8, 2019

My 6.2 has not varied. Even trailering. Needle is always straight up. 210'ish

Smoothie · May 8, 2019

I checked mine and it stays at the line before 210, so I am guessing that is around 200 or so. It is a 6.2 and I have the shutters.

econometrics · May 8, 2019

On 5/5/2019 at 11:14 AM, AMPRG said:

Read this:

http://gmauthority.com/blog/gm/general-motors-technology/gm-aerodynamics-technology/gm-active-aero-shutters-technology/

May be this is the reason. Look at your PRO codes and see if you have VTI in there.

I think you should be OK. It won't hurt if you check with the dealer too.

I just got my build sheet from the "[email protected]" folks. Very friendly!

I have VTI on my 5.3L DFM RST. Didn't realize that!

AMPRG · May 8, 2019

12 minutes ago, econometrics said:

I just got my build sheet from the "[email protected]" folks. Very friendly!

I have VTI on my 5.3L DFM RST. Didn't realize that!

You can also scan the QR code on the door (driver side). It will list the RPO codes along with the VIN.

econometrics · May 8, 2019

Just now, AMPRG said:

You can also scan the QR code on the door (driver side). It will list the RPO codes along with the VIN.

Thanks! Didn't realize that. I tried scanning it with my iPhone, but it didn't read it.

AMPRG · May 8, 2019

11 minutes ago, AMPRG said:

You can also scan the QR code on the door (driver side). It will list the RPO codes along with the VIN.

10 minutes ago, econometrics said:

Thanks! Didn't realize that. I tried scanning it with my iPhone, but it didn't read it.

My truck has 2 QR codes. The big one is the VIN only, and the small one includes VIN and RPO codes. I had to install a 3rd party free app on my Samsung phone to be able to read the codes.