Jun 13, 2021 · Hello all! Just curious if any of you have experience with the P1098 code? I’ve only found limited information here on the forum, however I did seem to find additional info on other …

Apr 11, 2023 · I have had many P1098 codes on my 2021 Yukon my dealer can’t seem to figure out. Check engine light comes on, reduced acceleration message comes on the dash and …

Jan 16, 2021 · I didn't see this code mentioned anywhere in forums for the 3.0L. We have around 55k miles on it now and before today we have loved the engine. Wife was driving and the CEL …

Jun 18, 2018 · My 2021 gmc Yukon xl Denali 3L also has the p1098 code. It says it’s the “coolant bypass valve”, which prompts my check engine light to go on and off and the engine fan to run …

Jan 19, 2022 · 2023 Suburban Duramax - 23k miles. Issue: engine overheated and told me to turn off the car to cool the engine. Under the hood, something had sprayed everywhere in the …

Nov 26, 2025 · Discuss the 3.0L Duramax diesel that now is an option for the 2021+ models here.

Nov 18, 2024 · Curious to ask those in the forum who have bought recent model, higher-mileage Duramax vehicles. I am exploring purchasing a year-old Denali Ultimate (with Super Cruise) …

Dec 17, 2024 · P1098 CEL Hello all! Just curious if any of you have experience with the P1098 code? I’ve only found limited information here on the forum, however I did seem to find …

Jan 6, 2025 · 2023 Yukon lost power and P1098 code I didn't see this code mentioned anywhere in forums for the 3.0L. We have around 55k miles on it now and before today we have loved …

Mar 23, 2019 · 2021 Yukon Denali- I’ve got this annoying rattle on the passenger side captains chair in the middle row. I’ve tried electrical taping the spot where the latches attached for …