6.2 Normal Operating Temps

[jasonh277]

I have been noticing my 6.2 ext cab 6.6 bed silverado is running 210 at all time and my tranny is around 175. What are you guys getting with your 6.2? I took the plastic off above the radiator to find an air deflector pushing air into the radiator to be all jacked up. Wondering if it isnt directing air to the radiator. Thinking about making a custom shroud.

 

Your thoughts?

 

Thanks in advance.

 

Jason

[RyanbabZ71]

210 is normal. My old truck and tahoe with the 5.3 run at 210. My 6.2 also does. Trans is normal too.

[Zembonez]

210 is normal op temp for these engines. has been for quite a while. Trans temps of 160-180 are normal in summer.

[C. Charles Hahn]

I thought normal temp was 195 for most everything out there from the factory....

 

At least that's what the factory thermostat is set at.

[jasonh277]

Thanks fellas.

 

[bigboyblue]

210 - Engine,

160-190 tranny are my numbers.

 

I had the trans to 199 at one point but that was climbing a grade in 120 weather

 

My old body 2000 tahoe 5.7L ran in the 160-170 range all day long.

It would actually get cooler the faster i ran once i added a double core radiator.

I could actually watch the needle drop is I accelerated.

 

 

But your 6.2L numbers seem right on.

It kind of bothered me at first too.

[Zembonez]

I thought normal temp was 195 for most everything out there from the factory....

 

At least that's what the factory thermostat is set at.

You are correct. The op temp on my gauge cluster reads 210. It did on my last two GM trucks too. Perhaps it's a gauge inaccuracy, but my current truck runs at 210 when warm (at least according to the gauge).

[Baja 252]

It doesn't mater what the outside temp is or if I'm towing, my 6.2 runs 210.

 

My transmission is at 155 on a cool day on the hiway and up to 180 in town on a hot day. I do worry about towing a big trailer in the heat. I've heard people say keep your trans below 200 if you want it to live. There's no way I'm going to be able to do that on a hot day with a big trailer and I'm in Kansas, not Colorado. Should I add another trans cooler in addition to the factory one?

[music]

I've heard people say keep your trans below 200 if you want it to live.

 

Not so with the newer synthetic fluids, but it probably has better power transfer with the lower temps (higher viscosity). I wouldn't worry much until ~230F. Towing a 7k lb camper, I've yet to see temps over 205F. The temp doesn't keep climbing with a load, it tends to settle out. Mine stops rising around 200F (so far) when pulling a grade. Generally, I see ~100F over ambient when towing the camper and the fluid looks/smells new.

[mjdxtreme]

My Denali engine temp is always at 210 wether I am towing my seadoo's or not. The transmission is a different story. When I am driving around town it is between 155-175 depending on how hot it is outside. When I am towing the seadoos it ranges from 190-210. Now 210 is climbing the mountains back out of the lake while it is 110+ outside, and it will return back into the 190's when I get back onto flatter ground.

[Baja 252]

I've heard people say keep your trans below 200 if you want it to live.

 

Not so with the newer synthetic fluids, but it probably has better power transfer with the lower temps (higher viscosity). I wouldn't worry much until ~230F. Towing a 7k lb camper, I've yet to see temps over 205F. The temp doesn't keep climbing with a load, it tends to settle out. Mine stops rising around 200F (so far) when pulling a grade. Generally, I see ~100F over ambient when towing the camper and the fluid looks/smells new.

 

 

Thanks, that's good to know. I'll find out next week, I'm pulling the car trailer loaded with lumber to the lake.

[redvett]

Don't worry about the temp until 237F and the PCM will take control at 247F and put truck in reduced power mode until it cools down.