Thread: Right hand aircon vent not as cold.

Hi,

I've encountered this uneven distribution of cooling once before, for me the problem was that the white heater valve thing in the engine bay was not fully closed. A quick push down on the linkage in the back and it closed the circuit and cold air was once again coming out from both vents.

I read somewhere that you can adjust the cable so that when you put the dial to cold, the valve closes fully but I haven't tried it yet. I just push down on the thing whenever I open the bonnet.

An interesting thing, I recently had to bypass the heater core as it was leaking and I have yet to change it but the A/C is much colder now. According to my A/C guy, the performance of the A/C is reduced whenever the heater core is connected to the circuit suggesting that the valve doesn't really fully close or something. Hopefully, some aftermarket parts maker can make a more effective valve and solve this issue.

I hope this helps.

I think there is something in the fact it is the furthest away vent so it is not as cold.
That said I think I have improved it heaps by sealing the gap between the intake from the engine bay to the air box in the dash, there was a large gap in the join in the passenger foot well, I had done the engine one with the air box but wrapped more dynamat around the air box Gap , especially around the engine side. It seems to be a lot cooler than it was but the left is still a little cooler, I can live with that though. I have the double din facia which sucks at the moment as while researching I found a double din that has closable centre vents which would be great.

Just an update on this, It has completely screwed up now, it is blowing warm air regardless of which setting, it happened after a cold snap and I used the heater, I suspect the cable opening the hot through May have come off or something. Time to get the dash off ️

Originally Posted by patclan

Just an update on this, It has completely screwed up now, it is blowing warm air regardless of which setting, it happened after a cold snap and I used the heater, I suspect the cable opening the hot through May have come off or something. Time to get the dash off ️

Check the other end under the bonnet first, you'll kick yourself if it turns out to be that if you pull the dash out. It's just near the passenger side wiper.

Originally Posted by SeanMurr123

Check the other end under the bonnet first, you'll kick yourself if it turns out to be that if you pull the dash out. It's just near the passenger side wiper.

Ha good point and idea, I pulled the dash out without reading this, fortunatley it is just the centre part I took out. But the cable is on and working fine, I checked the other end as you suggested, it seemed a bit stiff at that end but the switch movement does seem to open and close the valve, the valve has a bit of dried coolant on it, I am now wondering if it is the valve, may be worth changing as there is definatley heat geting through which would suggest water is getting through.
Now to find the part number.

Here’s a link about the valve, might be of help. There is not much love for this valve it seems

DEFENDER2.NET - View topic - TDCi heater control valve options

cheers Glen

New valve arrived yesterday, $36 deivered from China, gave it a quick test with air and the tap closes pretty tight so should be no hot water going through when it's on hopefully..

Quick update, I installed the new valve. Removed the hoses, 2 screws, a bolt and the cable and it was off. The new one is on and working, I am getting no heat in the cab when it is on cold.

So I have fixed one issue - the heat coming in. But I have no aircon, probably been like that for a while but couldn't tell with all the heat. I will get it regassed now before I venture into anything more expensive.

Cheers