Thread: Faulty aircon = coolant leak = overheating?

Originally Posted by kapowww

But what I'm saying is that now it isn't overheating anymore since the aircon settings were changed and the book symbol doesn't show up. No more leaking and the temp gauge stays in the centre. If it is the radiator then could you explain the link between the radiator and aircon fault coz I have no idea?

The reason for basis of a blocked radiator is due to the bit where you say ... "overheats when climbing a hill"
When a radiator is blocked .... running the heater helps keep the temp of the motor down ... basically "assists" the radiator. It is winter time and that hides all the problems of radiators.

I'm just providing you with the likely suspects that you need to way up in resolving the matter.




When you have a read of Hoges response ....
It could be suggested that the overheating and test book symbol are 2 separate problems and not related.


Also that Temp gauge ..... LR in their wisdom, designed it so that they never move until the coolant is about to boil ....

Cheers
Mike

Originally Posted by mike 90 RR

The reason for basis of a blocked radiator is due to the bit where you say ... "overheats when climbing a hill"
When a radiator is blocked .... running the heater helps keep the temp of the motor down ... basically "assists" the radiator. It is winter time and that hides all the problems of radiators.

I'm just providing you with the likely suspects that you need to way up in resolving the matter.




When you have a read of Hoges response ....
It could be suggested that the overheating and test book symbol are 2 separate problems and not related.


Also that Temp gauge ..... LR in their wisdom, designed it so that they never move until the coolant is about to boil ....

Cheers
Mike

Yep I understand the radiator may have a problem.. but.. I mentioned that I only had this problem when there was a leak. Now that there's no more leaks I can go uphill and it's fine. It doesn't overheat at all anymore now the leaking stopped. May be coincidence, but the leaking only stopped when the book symbol stopped showing up that's why I want to know if there's a connection.

That's why the radiator being blocked doesn't concern me at this stage. The leak worries me more.

Originally Posted by kapowww

But what I'm saying is that now it isn't overheating anymore since the aircon settings were changed and the book symbol doesn't show up. No more leaking and the temp gauge stays in the centre. If it is the radiator then could you explain the link between the radiator and aircon fault coz I have no idea?



So hardcore!



Ok if I get copper then I'll remember this.

Good advice... however, the problem here is that 'traditional' green coolant is NOT optimal for aluminium engines. So while it may be kind to brass fittings, it is not necessarily a good thing for engine block and head.

IIRC some manufacturers have confused issues by putting green dye in aluminium-compatible coolants and red dye in what are essentially "green" chemistry coolants (e.g. Toyota)! Nulon etc have good products. Personally I use the ("red") organic acid technology coolant concentrate from the local Holden dealer as specified for the LS1 V8... see also http://bioengr.ag.utk.edu/Extension/...es/engcool.htm for a simple overview.

Hoges

Good point, you can't trust the colour these days!

OATS or not is the key

Steve

Hi

To get back to the original question, I don't think the two issues are related.

Steve

Originally Posted by SteveFarmer

Hi

To get back to the original question, I don't think the two issues are related.

Steve

Cool thanks. When I looked through RAVE I couldn't seem to make a connection either. Only close thing was the aircon condenser fans sitting by the viscous fan coupling and radiator.

I'm just happy it stopped leaking coolant which lead to the overheating. I'll change my aircon settings to see if I can bring the aircon fault back and from there I'll monitor the coolant levels just in case.

It's just weird that after a couple of months of the aircon fault and coolant leak consistently coming hand in hand that they'd both stop on the exact same day without any intervention besides changing the aircon settings. I know outside temperature could play a part but the problem also happened in colder weather than now.

I am only a new owner, but i have been told if the pollen filters are blocked, it can cause all sorts of A/C problems.

I checked mine when i got it home and it looked like they had never been changed, they were black and choked up with all sorts of crap. I cleaned and replaced them, waiting for new ones, and the difference it made to the heating and cooling is amazing.

Yep mine were filthy when I first got it and ordered some from the UK immediately. It did make a huge difference in airflow.