[RON MILLER]

I think this was posted but will re-do this question. I'm having a lot of overheating trouble with a 2002 3.5L 300m. I have replaced the radiator( was leaking very badly) replaced upper and lower rad hoses, thermostat, new coolant, done a block leak test,replaced rad.fan relays, (high-Low) bleed system. It throws up badly after a couple of minutes running, coolant that comes out is very hot. I know the thermostat in in properly, all hose clamps tight, It seems to not allow itself time to warm up as needed before it goes crazy. Anyone ever run into water pump being a cause. Shaft rotor coming lose?
Than You
Ron

[sunsetdart]

If it heats up in a hurry, you have an air bubble stuck in the motor. When you refill a system with coolant, you fill the radiator until it empties into the block, then you keep filling the radiator.Well, what it's doing is pushing that air into the system where it gets trapped. The only way to get it out is to either bleed the system of the air, or cycle it, which is ..let it get hot, and cool down. Doing that a number of times should cycle it enough to get the bubble out.

[RON MILLER]

Thank you for the information. I'll try to re-bleed the system. At first I added coolant to the radiator ist until full, then to the intake, then the over flow bottle and over heated but I'll give this suggestion a try.
Thank You
Ron