Code po128

2011 CHRYSLER 200
132,000 MILES • 3.6L • 6 CYL
Avatar
MARLAINA PETERS
  • MEMBER
  • 7 POSTS
Check engine light came on. Got code from O'Reilly's of po128. Told it was coolant sensor. Where is that located on my car? I have replaced thermostat sensor already.

I bought a thermostat and sensor at the same time. I replaced sensor and engine light went off. Did not feel it needed the thermostat replaced.
Sep 30, 2017 at 5:15 PM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Here is a guide to show you what you are in for when doing the job and a diagram (below) to help you get the sensor replaced:

https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement

and if the code comes back I would replace the thermostat .

https://www.2carpros.com/articles/replace-thermostat

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
Images (Click to enlarge)
Attached Media
Attached Media
Oct 1, 2017 at 12:39 PM
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
I would be replacing the thermostat. I have had those Chrysler 200 set that code and it was a bad thermostat.The dealer had the thermostats on a two month back order. I had to get the thermostat on eBay.
Oct 1, 2017 at 1:37 PM
Advertisement
Avatar
MARLAINA PETERS
  • MEMBER
  • 7 POSTS
The thermostat was bought a while back and I just kept it. Thanks for the input
Oct 1, 2017 at 5:42 PM
Avatar
MARLAINA PETERS
  • MEMBER
  • 7 POSTS
Where is the drain plug for my coolant?
Oct 1, 2017 at 6:33 PM
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
At the bottom of the radiator.
Oct 1, 2017 at 6:58 PM
Avatar
MARLAINA PETERS
  • MEMBER
  • 7 POSTS
Could I use ramps instead of jack stands to lift front?
Oct 2, 2017 at 8:55 AM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Yes, make sure you block the rear tires so the car does not roll on you. Please post pictures of the job if you can.

Best, Ken
Oct 2, 2017 at 12:14 PM