Engine not getting up to normal operating temp

[chauncey0337]

Could it be they didn't bleed/burp the system well enough? you may have air trapped in it.

When you start it up in the morning, listen if you hear gurgling, there may be air in the heatercore

No, I have not heard any gurgling. Thanks for the response though.

 

[chauncey0337]

See this thread, Post #45 (@swathdiver comes through again!):

https://www.tahoeyukonforum.com/threads/engine-not-reaching-operating-temperature.108432/

EDIT: I corrected the post number, it's "45". Fat fingers.

Thanks Fless.

 

[chauncey0337]

Post #45: https://www.tahoeyukonforum.com/threads/engine-not-reaching-operating-temperature.108432/page-5

Thanks guys! I will check to see if I have an excess amount of coolant flowing into my expansion tank.

 

[SnowDrifter]

For what it's worth, if your tank is full and you've driven the vehicle to operating temp: It's probably not air. These trucks bleed on their own and bleed easy

 

[chauncey0337]

So, I clamped the hose that goes from radiator to the tank and it reached normal operating temp. Thanks gentlemen. But I still have lukewarm front heat. My rear heat is great. Just changed the blend door actuator and made sure it was operating correctly. Could it be my heater core is plugged? It has not worked properly since I got it back from the shop where they said they did a flush when the radiator was replaced.

 

[SnowDrifter]

What's the temperature drop across your inlet and outlet?