Thanks for making this video! It was 33* this morning and my heat hasnt worked since mid February! so I went out a few minutes early watched the video and followed your directions. We were warm taking the kids to school! 🎉🎉
Thank you so much for this video. We were quoted over $700 to fix the heater in our 2015 Armada. The problem was exactly as-shown. We were able to use exactly what you show in the video and in less than 30 minutes under the hood we had it working 100% again. The small gear had backed out and it went right back in.
Both of my titans had this problem I turned the gear and fixed one the other is just blowing semi warm thinking blend door probably cause it’s been clicking for years. Are you in Austin?
Man, that black spindle shaft is hard to keep in there. The whole unit is tilted down, so immediately falls out for me. I’m going to have to redo this as the little white part did walk up the shaft, however, my heat did not return after after I adjusted this.
Hey 737mechanic, I have an overview of the A30M if you are interested in checking it out. It about the same at the D7 but without the key programming abilities.
It posible it isn't opened all the way. That valve does control the flow of coolant through the front and rear heater cores but if it is only opened part way it may be letting enough go to the front and by the time the little that makes it to the rear gets back there it has cooled off.
That black plastic part you said sometimes breaks at 14:10 ... what's that called or what part number is that? Mine is broken and I need to replace it. Or do I need to replace the entire control valve?
@@737mechanic nuts. I need to replace that part for an NV. I'm thinking I can just get the part you linked to and take the gear out of it and not change out the hoses?
@@Texas713 I don't but one thing you could do is turn everything off to make the vehicle as quiet on the inside as possible and turn the key on and listen under the dash on both sides while you turn the temp control from cold to hot and see if you hear it running or moving. If you don't hear anything then that is something to look into.
@737mechanic The only thing I don't know is, the AC blows very cold air while driving, but if you're at a stop light or parking lot for more than 3+minutes, the ac temperature slowly gets warmer and warmer. Not sure if all Nissan V8 trucks do that or not. My 2023 Genesis g70 3.3t doesn't do that. It constantly blows cold air even idled for a long time.
@@kuvyoghmoobamelica6883 Make sure the fan is working. If you have electric fans make sure they are blowing on high, if you have a mechanical clutch fan make sure it is moving a lot of air when the engine is at idle.
@737mechanic thanks will check in on that. Just thought I share what happened. AC air gets warmer while idle with spindle out or something. Not even sure if it had anything to do with the spindle being out lol. Thank you!
@@kuvyoghmoobamelica6883 It sounds like you are not getting enough air through the condenser because the fan may not be working. When you are driving down the road there is plenty of air going through the condenser but when you are stopped the fans are the only thing pulling air through the condensor.
At 1025 what is that in your hand ? Where are you putting that tool in the connector? Are you shoving that tool in ward to push in a tab or pushing the tab apart? You mechanic content creators are all the same
Thanks for making this video! It was 33* this morning and my heat hasnt worked since mid February! so I went out a few minutes early watched the video and followed your directions.
We were warm taking the kids to school! 🎉🎉
Thank you so much for this video. We were quoted over $700 to fix the heater in our 2015 Armada. The problem was exactly as-shown. We were able to use exactly what you show in the video and in less than 30 minutes under the hood we had it working 100% again. The small gear had backed out and it went right back in.
Thank you for this video! My NV3500 stopped blowing hot all of a sudden and this ended up being the culprit.
Excellent diagnosis
Man, you helped me so much. Fixed my heat in 5 min and wasn't working for 2 years or so...
Thank you!!this fixed my problem 2012 Nissan Armada 🤙🏻
Great solution
I’ll try in my Armada
Have the same problem
Thanks and appreciate
Thank you! Exactly what was wrong with my heat ,fixed it myself in 5 min 🙌🙌☺️
Both of my titans had this problem I turned the gear and fixed one the other is just blowing semi warm thinking blend door probably cause it’s been clicking for years. Are you in Austin?
No, I am in Dallas.
thank you, I checked the control valve and that was the problem now I have heat. again
Man, that black spindle shaft is hard to keep in there. The whole unit is tilted down, so immediately falls out for me. I’m going to have to redo this as the little white part did walk up the shaft, however, my heat did not return after after I adjusted this.
Hey 737mechanic, I have an overview of the A30M if you are interested in checking it out. It about the same at the D7 but without the key programming abilities.
Can you still get A/C after making the adjustment in the Heater Control valve?
Yes
Nice diag!
What kind of coolant do you use for your Nissan is there a certain kind to use?
I have heat in the front... But not the back...could this be a problem?
It posible it isn't opened all the way. That valve does control the flow of coolant through the front and rear heater cores but if it is only opened part way it may be letting enough go to the front and by the time the little that makes it to the rear gets back there it has cooled off.
@@737mechanic could coolant levels play a factor?
@@RandyMarsh0301 Yes the first thing you need to do is make sure the coolant is at the proper level.
@@737mechanic Thank you for everything. I will give it a shot
@@737mechanic it worked. Thank you
That black plastic part you said sometimes breaks at 14:10 ... what's that called or what part number is that? Mine is broken and I need to replace it. Or do I need to replace the entire control valve?
You can't buy that by itself. You have to buy the entire heater control valve. amzn.to/3f0ZL8A
@@737mechanic nuts. I need to replace that part for an NV. I'm thinking I can just get the part you linked to and take the gear out of it and not change out the hoses?
@@justinsteele4470 You could do that.
Do you have any idea I disconnect that valve in winter and now in summer is not blowing cold air ?
Probably have a slow leak. Even with the valve in the heat position you should still get A/C.
Hello.the heater in my 2006 nissan armada it works..just ot bloes heat even on cold..i cant put the ac on e because still blows hot.
I'm not getting heat out my Nissan Titan, I checked the hoses that lead to the heat control valve and they are the same warm temp.
You may have a blend door stuck in the cold position. Could be a bad blend door actuator.
@@737mechanic do you have a vid on how to check or replace it by chance?
@@Texas713 I don't but one thing you could do is turn everything off to make the vehicle as quiet on the inside as possible and turn the key on and listen under the dash on both sides while you turn the temp control from cold to hot and see if you hear it running or moving. If you don't hear anything then that is something to look into.
I took the little spindle out and just run it like that.
Most cars don't even have a heater control valve.
@737mechanic The only thing I don't know is, the AC blows very cold air while driving, but if you're at a stop light or parking lot for more than 3+minutes, the ac temperature slowly gets warmer and warmer. Not sure if all Nissan V8 trucks do that or not. My 2023 Genesis g70 3.3t doesn't do that. It constantly blows cold air even idled for a long time.
@@kuvyoghmoobamelica6883 Make sure the fan is working. If you have electric fans make sure they are blowing on high, if you have a mechanical clutch fan make sure it is moving a lot of air when the engine is at idle.
@737mechanic thanks will check in on that. Just thought I share what happened. AC air gets warmer while idle with spindle out or something. Not even sure if it had anything to do with the spindle being out lol. Thank you!
@@kuvyoghmoobamelica6883 It sounds like you are not getting enough air through the condenser because the fan may not be working. When you are driving down the road there is plenty of air going through the condenser but when you are stopped the fans are the only thing pulling air through the condensor.
12:22
Thank you for the comment.
At 1025 what is that in your hand ? Where are you putting that tool in the connector? Are you shoving that tool in ward to push in a tab or pushing the tab apart? You mechanic content creators are all the same
Just using it to push the locking tab in to release the connector.