Water pump or not... that is my ?

[drakon543]

Thanks all, coolant temp guage in dash it dead middle 210ish degrees.

Im hearing the door change settings but it seems to me slow.

The hoses are warm hot on the top, like it should be, cool on the bottom.

I didn’t check the hoses going to the heater under the hood, will check when I get home tonight, see what they feel like.

are you referring to the vent selection settings or when you adjust the temperature. you should have 2 actuated doors for the hvac. one is typically audible and that would be the vent selector door. the blend door mixes cooler air with the direct heated air to get your desired heat setting. the blend door as mentioned above is the door in reference. if its weak it could be opening farther than it should be allowing too much cool air in the system.

 

[1BADI5]

Yeah if you have rear heat, I'm thinking blend door issue as well.

 

[5strmtrp]

Not really. Disconnect those plastic factory quick disconnect T's from the heater core inlet/outlet ports at the firewall and do the back flush as usual.

If the truck has some miles on it, I'd just buy new OE disconnect T's and replace them while they're off. They're known to get brittle, crack, and start spewing coolant at the most inconvenient time.

Sent from my SM-G930V using Tapatalk

Going to see how much the local steelership want for the fittings.

or

I can combine getting the steering wheel I want along with the fittings, yeah yeah that’s it.

 

[5strmtrp]

are you referring to the vent selection settings or when you adjust the temperature. you should have 2 actuated doors for the hvac. one is typically audible and that would be the vent selector door. the blend door mixes cooler air with the direct heated air to get your desired heat setting. the blend door as mentioned above is the door in reference. if its weak it could be opening farther than it should be allowing too much cool air in the system.

What your saying, switching the settings between floor, face, both, windshield floor etc. That’s what I’m referring to. What and where do I listen to for the blend door. What you are saying seems to make sense as far as the warm & cool air mixing.

 

[wsteele]

Here is a clip of where the blend door actuator is located and how to replace it.

Good luck.

 

[muncie21]

The fact that your lower rad hose is 'tepid' gives me cause for concern. If the engine is at operating temp and the t-stat working correctly the lower hose shouldn't be cool or tepid, unless you've got one hell of a radiator and heat exchange going on.

 

[Doubeleive]

The fact that your lower rad hose is 'tepid' gives me cause for concern. If the engine is at operating temp and the t-stat working correctly the lower hose shouldn't be cool or tepid, unless you've got one hell of a radiator and heat exchange going on.

or it's cold as balls out, in his case "snowing" and probably colder now, if his temp gauge is staying steady "as reported" there is no reason to suspect anything other than a blend door, a clogged heater core is pretty rare yet people want to always presume that is the problem simply because of no heat in the vehicle, 1000x more actuators go bad than heater cores, if it was a really old vehicle not maintained "maybe" his is a 2014 ssv which means it has most likely been maintained at least previous to being civilianized.