Car has no HEAT because...

[@TxSully85]

First video I found to actually show the actuators. Been searching for 45 min. Thank you.

[@RBTheMechanic]

Welcome!!! I have video on this to repair it kzbin.info/www/bejne/n3yYmmOBaJKUhpYsi=RChwxBuH6jLptAqD

[@junevioantonio]

Honda Fit hybrid 2015 review on coolant system problem please. Thermostat, water pump and radiator cap replacement.

[@jamescc2010]

2018 Honda Accord, today we have to turn it up to 80 to get heat. Any advise?

[@nakialindsey5684]

Thanks 👍🏾 for video tomorrow going to dealership from watching this I learned alot watching this as a woman cars interest me . I understand very well whats going on in case somebody try to dupe me 😂.

[@RBTheMechanic]

Oh cool update me

[@portugalbeach3674]

2005 Accord V6 dual control and full anti freeze. While in single temperature control mode and heat set to HIGH, the heat at both passenger side vents +/- 155 degrees. Drivers side center +/- 105 degrees and the drivers side by the door is +/- 80 degrees. Heater core pipes under the hood by the firewall are both equally hot. Heater control valve works and blue cable and arm move when temperature is raised and lowered. When in single mode and heat is set to LOW the temps go to about +/- 50 degrees (it's 40 degrees outside today). The blend door motor on the drivers side operates both the blue cable (white arm) as the temperature is adjusted and the black arm that controls the flap inside where the core is. When in DUAL mode, BOTH temperatures have to be set on low for the blue cable and heater valve to close, which it does. Putting the air recycling on allows the drivers side to reach the above temperatures, especially when driving at highway speeds. When the fresh air is on and I'm at highway speeds, the DRIVERS side by the door may go to +/- 70 degrees and the drivers side center may be +/- 90 degrees. Timing belt, water pump, belts and hoses just done but this problem existed prior to that work. The question remains as to why I have such a large heat difference between the passenger and driver sides? Any help would be appreciated.

[@RBTheMechanic]

Check ur blend door motor

[@portugalbeach3674]

@@RBTheMechanic The blend door motor shown in your video works fine. Assuming the blend door motor is the one on the drivers side that controls both the BLUE cable and the BLACK door (the one you had tied up here with ZIP ties kzbin.info/www/bejne/j5fXiWB3hpx3hKc). Excellent videos and I can see how far your video quality has advanced.

[@RBTheMechanic]

@@portugalbeach3674 yes also it could be the valve broken internally the heat control valve I had few of those if it dosent control heat

[@portugalbeach3674]

@@RBTheMechanic I didn't want to hear that. LOL. I have a snake camera coming for another job and will take a look when I have some spare time. I'll keep you posted. Thank you again.

[@bloqyutepa6432]

Very clear and accurate explanation, 🙋🏿‍♂️ B-class diesel tech*

[@RBTheMechanic]

Yup thank u

[@leohaukipuro7896]

When i turn the heat to HI and have warm engine, both of the passenger side vents blow hot air, but the center driver side vent blows a bit colder than the ones on passenger side and the on next to drivers door blows compleatly cold air. I have 2 zone climate control and my coolant is filled up.

[@RBTheMechanic]

What year is ur honda

[@leohaukipuro7896]

@@RBTheMechanic 2003, its a euro model but all the stuff seems to be the same as usa model

[@debabrate69]

Yea i have the same issue passenger nice and toasty driver sad and cold .....

[@leohaukipuro7896]

@@debabrate69 i may have fixed this, just dont remember how. maybe it was some module in the driver footwell

[@mrdave777]

Your videos are improving. They’re longer. Better quality. More insightful. Keep it up.

[@StrongerThanBigfoot]

Agreed

[@RBTheMechanic]

Thank u yup I got better videos comming up and better lighting and more fun and educational videos

[@RBTheMechanic]

Thank u I’m learning as we go and doing better videos

[@kevinphung4351]

@@RBTheMechanic What is that part call? And where is location of that part 2006 Honda accord?

[@RBTheMechanic]

@@kevinphung4351 the part I showed is called bled door acuator it’s located under the dash

[@todd-z6l]

2005 Honda civic 1.3 Hybrid. Digital Temp gauge Up to temp. All hoses are cold. No heat. New thermostat, water pump, checked radiator. When thermostat up to temperature . Drained radiator and coolant cold. Only place that is up to temperature is area around thermostat. Not sure why there is no circulation

[@todd-z6l]

I tried to up funnel for airlock to no change

[@RBTheMechanic]

You might have to command the pump to purge with scan tool remember electric pump or ur issue is something else it might have electric heater

[@datkidjj09]

Would you think blower motor or heating core be a problem if actuator is working

[@RBTheMechanic]

If ur blower motor is bad u will not get any air for or hot simple no air through went Core could be problem before ruling that out u need to check if it’s getting hot coolant in some Hondas have check valve that failed so check for the basics first check if coolant is full check if thermostat is good

[@EliD-l5y]

hello hoping you can help, i have a 2007 accord 4cyl. hoses weren’t hot the blender actuator moves, i was missing coolant about a 1pt p0128 code as well.

[@RBTheMechanic]

Top of the fluid first

[@RBTheMechanic]

And replace thermostat

[@EliD-l5y]

@@RBTheMechanic would it need replacing even if it’s at normal operating temperature ? the needle is in the middle, after topping off the coolant, the heater core hoses are heating up some heat is blowing it’s just not strong. AC working like it should

[@RBTheMechanic]

@ if u got the code yes cuz it maybe not holding or maintaining

[@anah7249]

I have questions How many blind door actuators in Camry 2017 ? Thank you so much.

[@RBTheMechanic]

If u got dual temp control then 2 other wise 1

[@sanjivgodarthapa6539]

I didnt saw a heater control valve on my ford edge 2008 .can hou give me ideas where it lies ??

[@RBTheMechanic]

That dosent have it check ur coolent level and check to see if ur bled door motor operates that’s all u can do other wise possability bad heatore core

[@sanjivgodarthapa6539]

@@RBTheMechanic thankyou

[@chrissshlattt1379]

My 2009 Honda accord goes to the designated temperature with the needle right in the middle but when I say driving the needle slowly goes down and so do the air temperature. help please

[@RBTheMechanic]

I would start with relaying thermostat it could be partly stuck open and once’s u drive the pump moves casters to push coolent out to cool off and cooler coolant comes to block also it could be ur fan running all times and then with flow of air from car moving cause more cooling

[@julieprince77]

My hoses are hot, antifreeze is full in the white jug, the radiator top is under plastic if i have one, ill try to get to that tomorrow and check the level there, My car is blowing cold air. possibly its stuck on a/c, we replaced the blend door actuator. I checked the fuses and reset the actuator. Do you think it can be the blend door itself is broken/faulty? i hear when each gear is selected and it blows out the defrost, feet, main and each one, except its cold. please help what else it could be. Its a 2015 chevy equinox

[@RBTheMechanic]

I doubt the door is broke did u connect the arm propperly and check operation see if it moved while thing the temp up and down.

[@julieprince77]

@@RBTheMechanic I tried it, i hear all the vents working in proper order, just cold air, no heat. Ill have hubby double check we go through the temp thing while doing it, i had not done that, But after we tried the heat and it didn't work. I unplugged the fuse and waited 10 seconds and plugged it back in. I didn't hear it reset though.

[@julieprince77]

It was the blend door broken. The part that goes into the actuator broke off, when hubby tried to move the blend door to the heat setting, barely touching it the piece that was broken fell out. we are going to cut the inner dash to get into that spot rather than take the entire dash apart. there is a video on it on youtube.

[@Big_Jims_American_Dream]

My 2022 Honda CR-V producing weak heat. I usually put it at 75 in the morning and it gets really hot, but starting yesterday I now have to turn it up to high heat (80+) to get same temp. If i set it to 75 the air just comes out lukewarm. Help a man out.

[@RBTheMechanic]

Oh ok start with checking ur coolant level

[@Big_Jims_American_Dream]

@@RBTheMechanic ok so it looks like adding coolant did the trick! I feel like a knucklehead lol … Thanks for your help! 👍🏻

[@RBTheMechanic]

@@Big_Jims_American_Dream cool!! Good job

[@shaylaramos4050]

What happens if the bottom hose that lets the antifreeze in is cold ?

[@RBTheMechanic]

Probable issue with thermostat

[@savannahparton9277]

I have a 2010 Honda Odyssey EXL 3.5l V6. My heat doesn’t work at all. It blows out but it’s not hot at all. What could be the problem?

[@RBTheMechanic]

@@savannahparton9277 check coolant level first and if blend door motor operates

[@savannahparton9277]

@@RBTheMechanic coolant levels are good.

[@savannahparton9277]

@ the heat in the back passenger area works just not in the front. Coolant level is good and I don’t know about the blend door.

[@akosbihari5565]

My dad has a kia sportage from 2007 and its not blowing heat.The heater core is hot the vents closes and opens but still no clue why it dont blow the heat.

[@RBTheMechanic]

Did u locate if the vent is for blend door motor that open and close? Also how did determine the core hot?

[@akosbihari5565]

@@RBTheMechanic removed the heater control valve (electric ) and opened and closed manualy and at the same time i used a flexible camera (endoscope to see if its closes properly and it does.Meanwhile the hoose that goes into the heater core is hot both even the Theater core too.

[@garyny4073]

Hey RB , good stuff . My ' 08 merc milan v6 premiere blows cold air , a shop said they try unclogging the heater core to no avail . I dont trust them they said it would be a 1200 . 00 job for new h. Core . I lloked at so many videos for my like car , fusion , mkz lincoln and they show the heater core hose right on the fire wall but it isnt on my car 🚙. I want to flush it if clogged myself , no ive shown can find it either ! Any help sir appreciated 😅😊thank u

[@RBTheMechanic]

Oh that’s lot well u can try sum chemicals but should be able to find hoses under hood not sure why it’s not there

[@richm1615]

You could use a commercial radiator flush (available anywhere you get car parts usually). I have also heard that you can use CLR (Calcium, Lime, Rust remover) - isolate the heater core, flush with CLR for 10 minutes then flush with distilled water then replace with antifreeze (50/50 mix), reconnect hoses to system/engine. There are plenty of videos on this.

[@garyny4073]

@@RBTheMechanic no its not straight on like the 08 Ford fusion videos show , we discovered mine even though it's basically same car the h. Core hose for flushing is down 👇 under where hands can't get at it unless car is lifted . Having a shop flush with CLR tomorrow. Thanks for in put

[@Codebluesituation]

i'm not getting heat anywhere in the car, and the heater valve is working and the screw turns with it so i don't know what the issue is

[@RBTheMechanic]

Did u check bled door motor working?

[@Clarity5970]

What if those two pipes are just warm and car is hot just no circulation seems like air lock,is there a bleeder valve or something I’m missing?

[@RBTheMechanic]

Could be blocked heater core or the valve dosent open propperly to let all the hot coolant in

[@chadhanson3431]

Love your videos!

[@RBTheMechanic]

Glad you like them! Thank you!

[@felipeisacchar2957]

Good video

[@kc95gs]

Question, I have a 2004 V6 4Runner SR5 with single climate control. When running the heater, the air on the drivers side is much warmer than on the passenger side. What can be the cause of that? I replaced the temperature blend actuator and the mode actuator is working fine. Any ideas? Thanks much!

[@RBTheMechanic]

Did u check coolant level to start off some times low coolant could be the issue also check ur cabin filter if it’s dirty replace it. Worst come to worst it could be the core have way jammed but that would be last option to think of

[@kc95gs]

@@RBTheMechanic Hi, I topped off the coolant, the cabin filter is clean, so I guess the next step is to flush the heater core. Thanks!

[@RBTheMechanic]

@@kc95gs check to see how hot are both heator core pipes use infraid gun the thermp should be equally hot 140+ degrees

[@kc95gs]

@@RBTheMechanic The return is about 10 degrees cooler.

[@RBTheMechanic]

@@kc95gs then it should be good did u see if blend door motor turn all the way

[@kappalot-_-9105]

Could this also cause no cold ac

[@RBTheMechanic]

Yes

[@Almighty_F30]

Hey bro so I got the same car 2004 accord I keep heaving to put coolant in it every 3-4 days and I notice when it overheats I have no heat when I check coolant in the radiator it’s all gone but the reservoir is full

[@RBTheMechanic]

Check for leaks look around by fire wall and check water pump confirm if there’s any leaks

[@jamie.777]

Thanks for helping us car d*mmies. I need to learn 😩 how to fix em... i got teenager drivers, my car,my wife and in laws

[@RBTheMechanic]

Welcome always good to do it urself!!!

[@Sandalflower]

When I turn on the heater inside the car its not giving me the heat and it remains cold / normal all the time.' What could be the reason plz help me.

[@RBTheMechanic]

Check ur bled door motor to see if it works

[@Sandalflower]

@@RBTheMechanicThank you so much for replying. Is bled door also called Acurator ?

[@RBTheMechanic]

@@Sandalflower yup

[@Sandalflower]

@@RBTheMechanic Thank you Sir

[@omega9073]

@@Sandalflower the actuator opens and closes the blend door

[@T4Prosperity]

My 2003 Accord always blows always cold air, i disconnected the wire and flipped the lever under the hood manually to let hot air in and still only cold air comes out the vents and its stuck on the front vents. Only thing working is fan speed. Do you know what's the problem?

[@RBTheMechanic]

U need to turn the bled door motor to heat and it will blow heat and u can switch to ac cold

[@T4Prosperity]

@@RBTheMechanic ok i will try that thank you

[@plumbmaster7022]

I replaced the valve , now when I press gas it closes

[@RBTheMechanic]

This is not replated to anywhere near gas acceleration peddle

[@plumbmaster7022]

@RBTheMechanic I meant when I hit the gas it'll start blowing cold air, further research leading me to the thermostat next.

[@RBTheMechanic]

@ yes check thermostat also coolant level

[@ptolemny]

Hopefully you got a microphone that cuts down on all the echo/reverb.

[@RBTheMechanic]

Yeah

[@IsaacMendoza0301]

My only goes to cold not heat what does that mean

[@RBTheMechanic]

Did u try to turn it manually to see if it goes to heat it mostly likely bad it that’s the case it has contact and gearing inside that wount send siginal back

[@nikosniko7092]

Yea same with mine I think I banged it and I heard it kick over - but in the summer my sister put it back to cold and now I can’t get it to heat 🤦‍♂️