[Bamaboy_rs]

Hey everyone, I too am having a similar issue with the wife's blazer. We are noticing two other symptoms.

A/C not blowing cold, Steering Assistance disable, Engine Temp Gauge at cold and we got CEL once with the P0128.

Following for other symptoms and fixes.

 

[Bamaboy_rs]

I’m still having the same issue regularly now. I’ve had the CEL come up once, supposedly it shows after the same code shows up 3 times. I’ve taken it back to the dealer to fix, and they always shrug their shoulders saying they can’t figure out what’s wrong. V6 blazer has the Chevy LGX engine that’s also in the camero’s, from what I can find online they have the same problem. Clearing the codes sometimes makes it go away, and sometimes it just goes away by itself

I also found same issue in a Malibu forum. The recommendation I found there were replace temp sensor or thermostat.

Found the sensor and it's not to expensive. Thermostat is included in a housing with a pipe. Price range $100-150ish but everyone is out of stock.