I have done so much to try and get heat, new pipes, new core, new rad, blend doors and actuators! Dash off to get to it all! The plastic surrounding the dails gets hot, very hot, but no heat from vents! Could there be a leak from the hvac?
@RBTheMechanic I have a mechanic doing the job! He is really good! So far, new rad, water pump, pipes, heater matrix, upgraded blend doors and actuators! He checked operations of blend doors b4 putting dash on! It all works, moves as should via the controls. No codes on dash, no codes on a very expensive scanner! He is going to do a smoke check as he felt the plastic surround and was hot! I asked y heat is heating up plastics but not coming from vents!? Have very good air flow from all vents! Hurricane like on fast auto! I personally think there is a leak, but like he said, if air is coming from vents and blend doors work, it should be hot air! He is an engineer by trade, so it's really bugging him! Is it just the 2 blend doors or is there another door lower down on another actuator that sends hot air up to blend doors and blend doors blend hot/cold? It's a 6 year mystery that not one mechanic has solved!!
@@terrystratford1235 follow any lines from blend door usully older vehicles have diphrams controlled by vaccum not sure if ur jeep has it would need to look down there
@RBTheMechanic vacuum pipes? I saw a vid on that...guy said to check it, runs from engine bay into bulk head, he said 99% of lack of heat is vacuum pipe leak! Cool, will have a look, ask mechanic to smoke check the vacuum pipes! I will let u know! Thanks 😊
Hello RB, 05 Jeep GC, & my defrost is not warming up the vehicle after 20 mins, still cold. Once I'm rolling and engine is warm I have great heat. It's just the defrost.. would this video still be what I need to check?
Thank you, great job.
1:51 Dextron is transmission fluid. This is OAT Organic Acid Technology. DexCool is the GM brand of OAT.
Good video, appreciated man.
Glad video helped!!
I have done so much to try and get heat, new pipes, new core, new rad, blend doors and actuators! Dash off to get to it all! The plastic surrounding the dails gets hot, very hot, but no heat from vents! Could there be a leak from the hvac?
Did u check the blend door? Did u check vaccum diaphrams u can turn the door manually to see if u get heat
@RBTheMechanic I have a mechanic doing the job! He is really good! So far, new rad, water pump, pipes, heater matrix, upgraded blend doors and actuators! He checked operations of blend doors b4 putting dash on! It all works, moves as should via the controls. No codes on dash, no codes on a very expensive scanner! He is going to do a smoke check as he felt the plastic surround and was hot! I asked y heat is heating up plastics but not coming from vents!? Have very good air flow from all vents! Hurricane like on fast auto! I personally think there is a leak, but like he said, if air is coming from vents and blend doors work, it should be hot air! He is an engineer by trade, so it's really bugging him! Is it just the 2 blend doors or is there another door lower down on another actuator that sends hot air up to blend doors and blend doors blend hot/cold? It's a 6 year mystery that not one mechanic has solved!!
@@RBTheMechanic ps, what and where are vacuum diaphragm?
@@terrystratford1235 follow any lines from blend door usully older vehicles have diphrams controlled by vaccum not sure if ur jeep has it would need to look down there
@RBTheMechanic vacuum pipes? I saw a vid on that...guy said to check it, runs from engine bay into bulk head, he said 99% of lack of heat is vacuum pipe leak! Cool, will have a look, ask mechanic to smoke check the vacuum pipes! I will let u know! Thanks 😊
Hey boss I have my AC blowing out not so cold air but both of my heater core hoses are really hot could that mean that my heater staying on
They stay on the bled door blocks hot air from coming in to cabin
Hello RB, 05 Jeep GC, & my defrost is not warming up the vehicle after 20 mins, still cold. Once I'm rolling and engine is warm I have great heat. It's just the defrost.. would this video still be what I need to check?
Well u need to figure this one out and try the basics stat with checking coolant if it’s low top it off