[winston330xi]

Thanks for the great write up. I just noticed a crack on my expansion tank at 76k miles and will be doing the whole cooling system overhaul this weekend or next and hopefully everything works out.

 

[winston330xi]

After 4 and half hours I finally just finished replacing my expansion tank, water pump, thermostat and hoses as well as lower hose temp sensor and fluid level sensor under the exp tank. Now the low coolant indicator light is on the dash. I put back the old fluid level sensor and the dash light is still on, coolant level is full. I bled the system for air, the heat is working fine in the car. Has anybody have any ideas what is wrong? Thanks.

 

[winston330xi]

Thanks, i left it overnight and the tank is still full today. I checked with my peake scanner and no codes came up. I drove it to see it would help and temp stayed in the middle and the heater worked great. When I got home let it cool down and checked coolant, it was still full and dash light still on.