my 2008 tacoma gets bubbles in the radiator reservoir after reaching driving temp.
I have done the combustion leak test 6 different times. Liquid stays blue.
No white smoke from tail pipe.
No milk or water on oil cap
Replaced the following with OEM parts from the dealership.
Radiator
Radiator cap
Thermostat
Water Pump
Lower Radiator hose
Radiator fan clutch
Radiator fan shroud including new reservoir.
Let me know what you think.
Thank you.
I am have the same issue with my 06 4runner. I have replaced the radiator cap, over flow tubing, had it pressure tested. I have buried it multiple times.
Every time my car cools off I can remove the radiator cap and see the fins in the radiator.
Did you ever figure out what was wrong?
@jmrgunners - The topic you are responding to is about 3 years old and its author has not been active here since that time so is unlikely to respond. Rather than "hijacking" an old thread, please post your own topic detailing your specific issue and what diagnostic steps have been taken so far. Thank you.