LC 100 overheating

[Rebin Rajan]

I have a land cruiser 2006 model L6 1FZ-FE

Below are the chain of events to summarize

1. As the car was old i thought of changing the coolant. So change the coolant by removing the radiator hose and filing new coolant (bought new coolant from Toyota)
2. Same day night i got a call from by building security that there is coolant leak from my car which was parked in the basement of my apartment. Saw that the lower hose came off, it came off while the car was in the parking space.
3. Next day reconnected the hose filled the coolant drove out of the basement and towed the car to the garage
4. Changed the thermostat and reconnected the hose refilled the coolant and took my car back to my apartment parking. Just before going for sleep went to check on the car and saw the hose was about to come off again
5. Next day again towed to garage. Changed radiator, lower hose, hose clips, fan clutch. And mechanic asked me to have a check on the temperature
6. While driving through traffic noticed temp going above the mid level.
7. Took the car again to garage, did radiator Co2 test came positive. Did a head gasket change
8. Did regress testing on the car, still temp goes up sometimes while on idle
9. Changed the water pump as well after that
10. The temp shows around 108c on idle

Now not sure what more to check

 

[Steve Wright]

Who did the head gasket (you or the mechanic} ?

 

[Rebin Rajan]

All work was done by the mechanic.

 

[Steve Wright]

Have you redone the co2 test after the gasket change ? by guess is there is a crack in the block

 

[Rebin Rajan]

I have done the co2 test couple of times after the head gasket change, did'nt show any indication of combustion gas in the coolant

 

[MisterCruiser]

Any update, did you manage to get the temp to reduce or what was the cause?