Hey guys,
After finding and fixing the misfire in my GTR, I've had yet another set back. Its now got a cooling system problem.
After a drive a few weeks ago it was bubbling (boiling) in the radiator and/or overflow bottle. I let it idle for five minute with the bonnet up (fan on) and it stopped bubbling. The needle on the temp gauge didn't move at all really. I thought maybe I just hadn't given it enough time to cool down after boosting.
I hadn't really driven it much lately because of the misfire and no insurance, but I've got those two sorted out now and it will be getting a lot more use.
It was bubbling fairly loudly yesterday after a drive, and I had cruised downhill in 5th gear for 3kms or so before I stopped, after a mild drive back on the highway so it should have cooled ok I would think. The gauge had risen to 3/4 after fanging, maybe just over.
Also, leaked coolant from somewhere, which I hadn't noticed before. Maybe 200ml or so. It was late and I didn't have time to check it out properly.
Now, my question for those of you who are kind enough to help me out:
What should I be checking, replacing or looking at to remedy this situation?
My list so far includes:
1. Coolant flush and repalce. It hasn't been changed from Japan yet (only a few 100kms). Should I do this myself, or take radiator to a radiator place to clean? What about engine side?
2. Check thermostat. Whats the likelihood of this being jammed or stuffed or something? Someone suggested just don't run a thermostat.
3. Obviously, check for leaks. Any points I should look into specifically?
Thanks in advance for your help guys.