430 No heating in the cabin after coolant flush

I think you could have a air pocket somewhere...I use an airlift tool, hundred bucks or so...and it works flawlessly for my 360. HTH

 

Get a vacuum coolant refill tool, pull a vacuum on it for awhile and then see if it will take some more coolant. That should eliminate any residual air in the system. The heating and cooling operation is somewhat unclear at times and take a little time to balance out. I find beat way to get heat is to take all switches off auto, and ac switch OUT heat turned up high and vent position setting of your choice. Fan speed selected manually. It sometimes takes a few minutes but you should be getting some heat. The ac compressor needs to run on heat settings to dehumidify the air or the inside windows fog

https://www.amazon.com/WIN-MAX-Engine-Cooling-System-Universal/dp/B0787JQSFH/ref=asc_df_B0787JQSFH/?tag=hyprod-20&linkCode=df0&hvadid=241896598945&hvpos=&hvnetw=g&hvrand=10240512312223731401&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9022693&hvtargid=pla-474387617474&psc=1

or equivalent. I used one from Harbor freight and it worked fine for the money and did what it was designed to do.

 

Would be a coincidence since you just changed the coolant, but I had an issue like this and resetting the HVAC ECU by disconnecting/reconnecting the battery resolved it. Seems these ECUs have a tendency to act up if I recall from some research at the time.

 

+1

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Sounds like an air lock. In these cases I let the engine idle with the header tank cap removed. The system will remain depressurised and should burp out any air - keep a rag around the cap area for when it does.

 

+1 for the airlift. Just bought and used one for my 360. Worked like a charm first time out.

 

I have a small Husky compressor from Home Depot. Hasn’t let me down for any tasks I need; impact gun, airlocks on 4-post lift, AirLift coolant tool, etc.

 

The tool generates its own vacuum with an air compressor blowing air through a venturi.

Do you have an air compresssor? IF there is a Harbor Freight store near you, you can get a small 2 gallon tank compressor and the coolant refilling tool at the same store. You will need a air compressor.

 

The Ryobi compressor would be fine for your intended purposes, tires coolant vacuum etc. Also I have found that the heater works best with the air conditioner or "power on" button not pushed in or in the OUT position. The label on the button is marked "off" which is what you get when pushed IN,

 

In the 360, there’s a button labeled STOP. Of this button is pressed IN, you will get no heat. Its’ default position is OUT/not depressed. That will enable both heat and AC to work.

 

Put the front wheels on 6 inch timbers with chocs, jack up the rear of the car to get a good angle and leave it to bled its air out. Have a look at Dans u tube video on coolant change, he has this big angle

 

That is correct, but if de humidification is desired (windows fog pretty badly in cold temps) let it run with the AC power button OUT. To me it seemed as if the heat came from the vents faster if AC button was out but eventually it would come with the button pushed in.

 

If the system is set to OFF then I think no AC/heat is added. Just "fresh air".

 

It is not a nice car to drive in heavy rain, you need the hot air on the screen all the time to keep it clear of mist and if you crack open the window to cool the cabin than the rain comes in.

 

Same thing happened to me when I changed my battery, AC fine but no heat. Read this was common, so disconnect (or turn off) the battery by using the battery disconnect in the bonnet. Wait 5 min. Then turn it back on and turn your key so that the accessaries are on but not the engine, wait a couple minutes, start the car. My heater worked fine.
DLA