Gt-t Overheating, Assistance Plz!

[Giuseppe]

Just bought this R-34 GT-T (98) 2.5 L 2 door recently, it seems to overheat only on 35degree days or higher especially when running the a/c. Makes no difference if im in traffic or crusing down the motorway, i make sure coolant is there, any suggestions or help with this ?

[rgr34]

is it loosing coolant? is it overflowing into the overflow bottle?

[Giuseppe]

is it loosing coolant? is it overflowing into the overflow bottle?

not not losing coolant or overflowing

[rgr34]

with these thing hard to say i would be getting the cooling system pressure tested, also think about basic things like replace the thermostat, radiator cap, coolant and maybe get the radiator cleaned out professionally in case its blocked.... if non of that helps maybe its got a blown hg slowly on its way.... you would hope not thou.....

Edited January 4, 2010 by rgr34

[Giuseppe]

with these thing hard to say i would be getting the cooling system pressure tested, also think about basic things like replace the thermostat, radiator cap, coolant and maybe get the radiator cleaned out professionally in case its blocked.... if non of that helps maybe its got a blown hg slowly on its way.... you would hope not thou.....

cheers. i did get the first things done already, maybe now ill get the radiator/head gasket checked out professionaly.

Which is a good mechanic to take skylines for servicing with decent price?

[Chris34]

Same thing just happened to me. Only just made it home so I was lucky in that regard. Smoke was coming out of the radiator hose and somewhere from the back of the engine to, couldn't see where it was definitely coming though.

Radiator hose was loose so I'll tighten that up and top up water & coolant levels once the engine has cooled down...and if it still overheats then I'll be coming back to this thread needing help haha

[Flargh!]

Is the fan working properly? Clutch might be F#@$%D

Are you sure there's no air trapped in the system? Try bleeding it to be certain.

Edited January 5, 2010 by Flargh!

[Chris34]

My clutch is pretty f***ed at the moment, although I didn't think that would be a cause to the car overheating?

So I put the radiator hose back in place and topped up the radiator with water. Yet it still overheats, this time its spitting and steaming from the top radiator hose (radiator end) and also, when I hit boost, the car basically starts shaking. Whats up with that?

[Flargh!]

My clutch is pretty f***ed at the moment, although I didn't think that would be a cause to the car overheating?

So I put the radiator hose back in place and topped up the radiator with water. Yet it still overheats, this time its spitting and steaming from the top radiator hose (radiator end) and also, when I hit boost, the car basically starts shaking. Whats up with that?

I mean the fan clutch.

[rgr34]

is there milky residue under your engine oil cap?? if the car is running rough it not a good sign.

[Giuseppe]

is there milky residue under your engine oil cap?? if the car is running rough it not a good sign.

What does milky residue come from

[rgr34]

What does milky residue come from

if head gasket is blown oil mixing with water.......

[mad082]

there ae plenty of things to check before looking at headgasket, etc when it comes to heating issues.

first is to bleed the system. this is free and a good place to start. also check the clutch fan while you are at it as it's something you can check yourself. also check for any crap between the radiator and the aircon dryer/radiator. this can sometimes get a bit blocked up and educe airflow if the car is often parked unde a tree and leaves fall onto the front bar and get sucked through the grill when the car is started.

next is to replace the thermostat as this is something that does need to be replaced over time and would probably be the cause of a lot of heating issues. replace the coolant while you are at it.

then you could get the radiator professionally cleaned. in my opinion radiator flushes don't do crap as they don't get out the build up of crap that blocks the radiator core.

next on the list is the water pump. if the impellor in this is worn it won't pump the water fast enough and cause heating issues (anyone that has ever owned an outboard will know all about impellors and water pumps)

unless there is a reason to check the headgasket (such as oil and water mixing together) or bubles in the radiator when the car is running or the car is hard to start then when it does start blows a heap of white smoke for a short amount of time i don't usually bother. and milky oil or coolant isn't always the sign of a blown headgasket. i've had 2 blow and not ended up with the milk of death, but instead ended up with coolant in the cylinders.