Threedogs motor thread

[threedogs]

I got the Jack out and a stand to put under the chassis, just waiting
on one of my sons to help, Bit hard as one works on the weekend and the other has a broken wrist lol
Gets a bit painful pumping the jack so Ill have to pump it with my leg.Getting the wheel off is easy
as I have a great 12v wheel nut remover, one that winds up then thumps, had it over 20 years easy.
Fully rebuildeable if anyone has one, anyway Action stations tomorrow eh, lol

[jay see]

John you say that your electrical fan the a/c one won't go on. That fan should always go on when the a/c is on regardless of temp. Do a simple test, start it up and turn in the a/c on. That will at least eliminate one possible cause.

[threedogs]

Missed this post last night, so far Ive jacked it up and placed a stand under it.
then came inside for some meds ..this is not funny any more, Thanks Jay see
will do fan test now.

[threedogs]

So fans don't come when I push air con, Is this just a fuse and where is it
or is it a relay., fingers crossed,
If this is all it was thought the power was still too good to have a cracked head.
we'll see eh
Still need to remove the clogged thermostat

[BigRAWesty]

I'd say the fan may play a small part but it's only to assist the ac condenser..
I'd say your issue is the additive.. it's blocked somewhere.. hopefully the thermostat..

[threedogs]

I'd say the fan may play a small part but it's only to assist the ac condenser..
I'd say your issue is the additive.. it's blocked somewhere.. hopefully the thermostat..

Its not the additive as it did it with no additive in it
I believe its blocked now thats why I need someone to remove it,
the thermostat housing that is.

[taslucas]

So fans don't come when I push air con, Is this just a fuse and where is it
or is it a relay., fingers crossed,
If this is all it was thought the power was still too good to have a cracked head.
we'll see eh
Still need to remove the clogged thermostat

Remember what you tell everyone, the KISS principle.

I'd say the fan may play a small part but it's only to assist the ac condenser..
I'd say your issue is the additive.. it's blocked somewhere.. hopefully the thermostat..

Looking to see if the fan comes on when the aircon is turned on is a way of seeing if the fan is working. If it's not coming on when the aircon is turned on then it's likely it's not coming on ever which could be the reason the cooling system overheats.

John, when the vehicle is hot and idling, does the fan come on? When was the last time you saw/heard the fan going?
Ie; the cooling system may be borderline effective and not quite working well enough without the thermo fan to help

>>>tappin from tassie

[threedogs]

Cant for the life in me remember when I last heard the fans working.
Idling and HWY work will see the temps recover, so now I need to get
the head repair goo out behind the thermostat, and maybe change a fuse here and a relay there maybe

[the evil twin]

The A/C elec fan not coming on won't be the cause of the overheating.

In the ZD30 up to about series 7 or 8 the fan is controlled by the ECU (IIRC later ZD30's don't have the elec fan)
A/C off, coolant below 100 deg = Fan off
A/C on, coolant below 100 deg = Fan on
A/C off, coolant above 100 deg = Fan on

I don't know much past that about the ZD's as I haven't seen one that ever had a problem
The TD's I know very well 'cause of the propensity for them to overheat anywhere north of Antarctica

If the fan doesn't come on at all I would suspect;
The Fuse (30 amp jobbie in the engine fuse box IIRC)
The Relay (cooling fan relay#1 in the relay box beside the battery)
The Fan (check the voltage at the fan plug) if that is OK then the fan is shagged

[threedogs]

Thanks ET. Still need to get the thermostat housing off to back flush the system,
untill then Im knackered {staying put}