FZJ105R Condenser fan mystery.

[l3n0x]

What does the interior have to do with any of his A/C cooling issues? He has a 1FZ-FE engine and A/C system, which is identical to FZJ80s.

Nothing. I’m sorry I’ve commented.

 

[highkick05]

It’s basically the 80 series under a 100 body. A hell of a lot of 80s here in the USA...

Most of the 80s engine , driveline etc

The point is that it isn't a 100 body on the inside. It's a 105 interior which is different from the 100.

Nah, the interior is definitely a 100 series. The evapourator box / cabin filter housing is supremely weird. You'd probably have a puzzled face looking at it.

 

[highkick05]

ok , so thought I would bump this thread bcos it comes up in google search as well, might be useful for others

So I've gone to the extent of putting 2x thermo fans on the condenser and extending the A/T cooler forward.

I have replaced the broken Fan shroud and clutch driven fan (TORA) & put some rubber foam seal between radiator and front chassis. So more air is going over the fins obviously.

It gets cool real quick because of this, but there is still a problem in this system after the cars been run a bit suring the day then it cycles from cold to warm, back to cold. Obviously some sort of restriction in the AC system. On top of that, the AC Compressor does not stop, or switch off and then on again... making me think that is an obvious problem.
I have a squeek on my engine clutch driven fan now and it looks as if the fan clutch may be wobbling only very slightly. My theory is the 2 x thermo fans in push config is somehow blowing warm air back into the engine bay against the new TORA clutch driven fan and viscous clutch <-- weird but kinda evident something is squeeking a bit in there.

So now I've completely researched the entire AC system (DENSO) bought a temp gun and think I will just replace the condenser and TX Valve. The condenser looks easy, the Tx Valve can be done from the front of the firewall by the looks? Think I will leave the thermo fans off, or put them in PULL config, but I will be buying a vacuum pump to remove refridgerant first, so wont touch the condenser after first replacing I can buy more refridgerant later.

Is there obvious problems that occur in the AC systems after such and such years with these cars? All looks to be original.

 

[james105]

Ok, so just thought I would start thread from scratch. Hopefully someone on the forum has had plenty of experience with fitting a custom condenser fan.

My car is a 1998 Landcruiser FZJ105R (Australian Model) - Petrol V6 (inline) 4.5L

The A/C System works, there is a new AC Compressor on this system and it has been regas'd - before fresh cabin filter installed it was working fairly well either parked or driving.

Once the filter was installed I could finally breath without just about spewing, however, now the system appears to suffer when at idle - and struggles to keep cool.

I have a crack in my radiator fan cover - which I will be taping with some 3M VHB tape which will hold it well. So that is not an issue really - I still think that the system will be severely lacking.

So I have looked at relevant threads this one stands out for me (because it mods the system so the condenser fan automatically switches on and off via the A/C Pressure switch sensor:

Adding A/c Condenser Fan to 03+ LX470

@LandCruiserPhil offers a great kit for this, which is hands down much more painless than what I'm about to explain below, however, you could do the wiring like I did and still use his kit. Here is the original thread: How to get peak AC performance from your 2003+ 100 series I needed a...

forum.ih8mud.com

I've taken pictures of my cars A/C Pressure switch sensor and it has only 2 wires going in. However, as you can see in the pic, there is an unplugged connector above it which has 2 wires:

View attachment 2533584

Would this unplugged connector be for the A/C Condenser fan ? I have this strange feeling maybe there was one if that is the case.

Anyone good at looking at Toyota Service Manuals that can tell me what that wire is for? (would help me determine if its for condenser fan)

Hey mate, how’d you go with this? Thinking of doing it to my 105

 

[highkick05]

Hey mate, how’d you go with this? Thinking of doing it to my 105

Don't bother with the thermo fans, it did nothing for my AC.

I ended up replacing the entire AC system minus the hard lines.
Thats new condenser, evap, tx valve, sensors . AC compressor .. blower fan, blower resister. everything
Worked like a dream before I sold it.