Thread: TD5 Airconditioner efficiency.

Originally Posted by shack

How do you want to test it? With a multimeter?

Where is it located? There is a harness going to the compressor but I assumed that was the on off switch?

It's basically screwed into the evaporator above where the right foot of a passenger would sit.

The fan is triggered by 3 things.

1. Engine temperature (coolant) while engine is running.
2. Engine temperature when engine off.
3. AC system pressure at the trinary switch.

Originally Posted by Captain_Rightfoot

Where is it located? There is a harness going to the compressor but I assumed that was the on off switch?

Ok so I'm back from the desert again. It was mostly pretty nice temp wise, but we did have a couple of hot days. The AC might be working as good as ever but it fundamentally lacks cooling capacity when the days heat up.

The day I was doing some testing - high speed driving so should eliminate the issues of airflow over the condenser and engine speed for the compressor.

It was 38-40 degrees out, and the vent temp on medium fan was between 11 and 12. If you turned the fan up to high you got more air but the temps went up. Thermometer sitting on the centre console box was 33-34. (cry) So it is cooler than outside but not by a whole lot. The whole car gets heat soak.

I feel as though it's probably working as well as it ever has but it's just not even close to enough. IMHO I need some uprated parts here, but don't know who to talk to in Brisbane. Mr Cool did the work before I left, and while they probably got it working as well as they could within the parameters of the exisiting system, any actual improvements is beyond the scope of what they do.

Any ideas?

That same day the engine was running in the 98-103 range. The viscous fan was only operating some of the time. I'm wondering if that is getting a bit average in its old age. (I can't recall it ever being replaced). While that's possibly a separate issue, could there be some crossover?

The vent temperature output on my defender will go below zero on a 38° day and freeze the evaporator if I don't cycle it

Originally Posted by shack

The vent temperature output on my defender will go below zero on a 38° day and freeze the evaporator if I don't cycle it

Cripes.. so WTF is wrong with mine!

Originally Posted by Captain_Rightfoot

Cripes.. so WTF is wrong with mine!

Can the Nanocom 1 upload tunes to the ECU?

Originally Posted by shack

Can the Nanocom 1 upload tunes to the ECU?

Tunes.. not sure what you mean.

FYI when it was really hot I did look ant the little fan on the front was running.