What heat temp comes out the vents ?

[Highway]

thought my heater core was bad but been burping air from system and now my heat temps coming from the vents are at 102°F. I loosened the pipe plug at the water pump and added coolant until it flowed steady. Then i have been running the engine to get temps up to normal and with the truck on ramps i leave the radiator cap off until it cools down and add coolant and repeat. Sound about right way to burp these trucks ? What is the normal temps at the vents supposed to be at ?

 

[jws123]

I get 145f out my vents replaced heater core 2 yrs ago you may want to try CLR in your heater core as a last ditch effort for some reason the orig cores clog not sure if they just fall apart from inside or what.

 

[Highway]

I get 145f out my vents replaced heater core 2 yrs ago you may want to try CLR in your heater core as a last ditch effort for some reason the orig cores clog not sure if they just fall apart from inside or what.

Back in the fall I Flushed the core and changed water pump which had a small leak and fresh coolant. No sediment came out when i flushed the core and flowed good out both hoses. I added RMI-25 and overflow tank is clean as well. Just burped again and added coolant and its up to 110°

 

[jawzs2]

What is your engine temp running at? Put in on floor and see if there's an appreciable difference between the driver and pass side temps, if so, more than likely heater core.