P0128 Code – How To Replace Jeep Wrangler Coolant Sensor, Thermostat & Bleeding Coolant System

For the first time that I can recall Rubi started throwing an error code. After several months I decided to fix it. Originally I was told it was the cooling fan, but my Innova 3210RS OBD2 Bluetooth Code Reader was telling me otherwise.

It was throwing a P0128 code; which is one of two things (or both). Eithe the coolant temperatre sensor was done; or it was the Thermostat. I decided to replace both. While I was there, I swapped out both Rad hoses and repalced my 4 year old coolant with fresh stuff from Mopar.

Checkout my video on how I did this work!

Note: if you receive a P0118 code; check that the sensor connector is securely attached.