New to forum…21 Sierra, Coolant Control Valve P1098 fixed

[HuskerPower1971]

I have a 2020 with the LM2. A few months back I started getting P00E0 and P00E2 codes. I wound up replacing the inlet and outlet air sensors located on the cooler on top of the engine. Codes went away for awhile but then came back intermitently. Now the CEL stays on all the time. Yesterday on my way home from work I noticed the temp gauge was higher than normal and the truck was noisy. Sounded like the fans. Second time I have heard this. Did a bit of research last night and discovered there are also sensors located in the cooling hoses. I ordered a couple but not really sure hwere they are located. While doing some more research online otday I ran into these issues with the coolant control valve. Sounds like I am having similar issues although I have not gotten a code calling this out. Since my truck has just over 60k miles should I take this in to the dealership (although I do have some aftermarket items installed) or tackle this myself? Sounds like a striaghtforward procedure, just long. Thanks for any advice!

 

[gemarsh]

I have a 2020 with the LM2. A few months back I started getting P00E0 and P00E2 codes. I wound up replacing the inlet and outlet air sensors located on the cooler on top of the engine. Codes went away for awhile but then came back intermitently. Now the CEL stays on all the time. Yesterday on my way home from work I noticed the temp gauge was higher than normal and the truck was noisy. Sounded like the fans. Second time I have heard this. Did a bit of research last night and discovered there are also sensors located in the cooling hoses. I ordered a couple but not really sure hwere they are located. While doing some more research online otday I ran into these issues with the coolant control valve. Sounds like I am having similar issues although I have not gotten a code calling this out. Since my truck has just over 60k miles should I take this in to the dealership (although I do have some aftermarket items installed) or tackle this myself? Sounds like a striaghtforward procedure, just long. Thanks for any advice!

Welcome.