Need Help: Engine Overheat

[ch0pstA~]

Hey all

Its around 36 degrees right now and ive just been out for a short cruise (air con on) and my temp guage was reading about 3 quarters towards H, which hasnt happened before. I slowly plodded my way home and the guage returned to normal, i parked in the shade and popped the bonnet to let it cool down and noticed a bubbling sound coming from the coolant tank on the left hand side at the front... i peered in and could see the coolant bubbling.... and the coolant level is just above the 'max' marker... as i havent had any experience with this kind of problem before im basically stumped....

I have a brand new bottle of coolant and am thinking of doing a coolant change before i drive anywhere...

What could be the problem?

[blind_elk]

I wouldn't worry about changing the coolant just yet.

When you turn the A/C on, does the little fan out the front also turn on?

[Bizzy]

try checking the thermostat

[RANDY]

Money on the thermostat. If it has sealed shut, the radiator cycle stops working, and your water-pump will be pushing water to the radiator, where it gets stopped. That will heat up badly, and then when you stop, it will try and spit it all back out to the overflow bottle.

[mike063]

Hey all

Its around 36 degrees right now and ive just been out for a short cruise (air con on) and my temp guage was reading about 3 quarters towards H, which hasnt happened before. I slowly plodded my way home and the guage returned to normal, i parked in the shade and popped the bonnet to let it cool down and noticed a bubbling sound coming from the coolant tank on the left hand side at the front... i peered in and could see the coolant bubbling.... and the coolant level is just above the 'max' marker... as i havent had any experience with this kind of problem before im basically stumped....

I have a brand new bottle of coolant and am thinking of doing a coolant change before i drive anywhere...

What could be the problem?

I had similar prob with my R33, Check water pump if it's not your thermo. Mine had all but 1 fin left on the impellar. cost you around $150 for a new pump.

[Taso84]

Yes most prob water pump or thermostat. Also check under car if water is leaking, but if the water is bubbling i would say thermostat