Hello, I tried and wanted to do a flush, I opened the radiator plug and some coolant came out. I then knew there is an additinal 2 plugs that I couldn't find. I reinstalled the plug and fill it with coolant, but the coolant kept reaching over a 100c I turned off the car before any damage could happen. any thoughts. the car did not have any trouble before. I appreciate the help.
Note: the fans are working well along with every other components.

 

Use a bleed tool, you can't just refill these cars because of the way the system is setup and it's propensity to trap air. You also should try to angle the nose up, have the air set to max hot to open the heater core valve fully, and hold revs at at least 2000 to have the water moving at full speed.

 

Grab (<-----link) and re-bleed.

 

Agree with that one or similar like an EPAuto Spill Proof Radiator Coolant Filling Funnel Kit. ($24.97 on Amazon)

 

Spill-Free Funnel Manufacturer: Lisle Manufacturer Part No.: 24680 Our Part No.: LIS24680 Price: $20.74 tooldiscounter.com

 

thank you guys for the help. The only thing that I missed is the tools mentioned above.

 

I bought the other one, and can attest that it's great quality

 

The alternative at least for me was to wrap an old towel around the neck of the radiator and let it overflow onto the towel. The funnel really prevents a mess because the extra goes into the funnel, and then you can stopper it so nothing spills.

 

As with all cars heated by coolant, prior to a coolant change, turn your car on, set your interior temperature to MAX HOT, and idle for 2-5 minutes to ensure the heater water valve is open. Wait for the engine to cool before draining the coolant.

After refilling the radiator block, also fill up the LS430's special coolant overflow reservoir to the FULL line. Then bleed the system by turning the car on, with the heat still at maximum, and maintain 2000-2500 rpm until engine reaches operating temperature. Stop the engine, wait for coolant to cool, then add coolant to both radiator and reservoir to the FULL lines. The system should be bled of air after this.

 

It's also about raising the level of the coolant relative to the rest of the loop so that the air will want to progress out the highest point in the system that being the funnel and not get trapped somewhere inside the throttlebody and intake manifold area.