curious

[Nkerridge]

Is it possible for a 3.0L to suffer the same problems as the 2.4L
as a friend of mine is suffering from erratic overheating on his 3.0L
no visible problems, just erratic

[da SLUG man]

could be anything...
the head can go on any car, have you checked possible causes?

[Nkerridge]

could be anything...
the head can go on any car, have you checked possible causes?

Water levels were good all oil levels were good.

[BUSHWHACKER]

Are you sure there is no airlock in the cooling system.?
Make sure the heater controls are set to hot, and the engine running when coolant is topped up.

[da SLUG man]

have you been getting it muddy and not washed the rad??

[Nkerridge]

have you been getting it muddy and not washed the rad??

ahh??

[da SLUG man]

ahh??

is that an
Ahh!
or
huh?
or
uh?
or d'oh!

[laser_jock99]

Is the viscous fan working properly? Is the thermostat sticking open/closed occasionaly? Waterpump working okay? Has the entirely cooling system been flushed out & cleaned recently (Toyota reccomend every 24 months- but I bet most people don't.....)?

Could be anything really- but most likely an airlock.

[openback]

had a few high temp "moments", no real pattern to them so i was thinking of of a new thermostat and system flush. any hints for a successfull flush, other than have the heater set to hot?

[BUSHWHACKER]

Here ya go matey, all thanks directed to Lucky





--------------------------------------------------------------------------------

Quote:
Originally Posted by rude72
hello everyone!
please could someone give advice on the correct way to flush the cooling system and put in new coolant etc.( or where there's a good web page!)
As you can tell i'm new to this game and could do with some help!!!
many thanks



OK.

Switch the heaters on (front and rear if you have them).

The drain tap is at the bottom of the nearside (Passenger side) on the radiator. Undo this and remove the radiator cap.

Allow to drain and then remove the top hose at the radiator end.

With the drain tap still undone put a hose into the top hose pointing towards the engine and turn it on.

Leave the hose to flush through the engine for about 1/2 hour. To do a really good job, get some gaffer tape and tape a seal around the hose and the top hose.

Turn off the hose and remove.

Tighten the drain tap.

refit the top hose.

Fill the system SLOWLY through the radiator cap with premixed coolant (30% coolant, 50% water - use distilled water or soft water if you can).

When the system seem to be full, start the engine with the radiator cap still off and allow it to run for about 15 minutes occasionally squeezing the top hose, heater hoses to help any air bubbles escape.

Top up if required with the coolant mix.

Once all this is done, replace the radiator cap and take for a drive round the block.

While the system is drained down it would be good to change the thermostat (under the rad cap - 3 bolts) and the radiator cap (you need a 1.1 bar one).

I use Bluecol antifreeze although I have heard good things about Halfords professional coolant.

You could also add some DEI Radiator relief (Available from Agriemach or Frosts) or some Redline water wetter as both improve the cooling properties of the water / antifreeze mix.

Cheers
__________________
Andy
--------------------------------------------------
1993 Landcruiser VX 4.2TD

[openback]

cheers for the v prompt reply!
two things, one we're on a ****ing hose pipe ban!
two, 30%coolant 50%water 20%????????

seriously thanks again will give it go asap.

[BUSHWHACKER]

The missing 20% was a typo. you'll have to ask Lucky (Andy) where it goes.

p.s. We got plenty water, We even pump it into England from wales, 'cos you lot keep wasting it!

[openback]

The missing 20% was a typo. you'll have to ask Lucky (Andy) where it goes.

p.s. We got plenty water, We even pump it into England from wales, 'cos you lot keep wasting it!

guessed as much! just buy a gallon of coolant and mix as per instructions, we all have to read them from time to time! some people would say that running a hose for half an hour through an engine was a waste, i ask you!