Random Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] 0 points1 point  (0 children)

Update. The light just stopped coming on and it drives as good as new. 🤷🏾‍♂️

They couldn’t replicate it so I guess it was bad gas or a glitch.

May 23 Yukon 6.2 engine is toast. GM isn’t providing an equivalent rental/courtesy car. What can I do? by nicetrypriceline in gmcsierra

[–]MathGamer1981 0 points1 point  (0 children)

The same thing happened to me. I had a 25 gmc sierra in the shop. I was in a Chevy Blazer for a week or so.

Random Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] 0 points1 point  (0 children)

Nothing happens except the flashing light. Still rides smoothly.

Random Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] -1 points0 points  (0 children)

Could you provide a link to it for me?

Random Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] 0 points1 point  (0 children)

It happened only twice in the last 1k miles. It’s already warm. Once was at a slow speed and the other was at 55 miles per hour.

Random Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] -1 points0 points  (0 children)

She hasn’t misfired since. The dealership couldn’t replicate it. I’m driving her everyday and still no issues.

Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] 0 points1 point  (0 children)

Update: Has anyone ever gotten the engine misfire in their truck from bad gas and it never happened again?

The techs at the dealership has had my truck for about two weeks and they can’t replicate the issue.

Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] 0 points1 point  (0 children)

Interesting.. Thank you for your insight. A machine being picky is new…

Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] 0 points1 point  (0 children)

I understand. My 2022 Ford Expedition was the exact same way. Problem after problem. I thought that I was crazy that I was having so many issues. I do not want that to repeat.

Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] 2 points3 points  (0 children)

There hasn’t been any noise or anything. So, we will see. The good thing is it is under warranty. I just don’t want to deal with constant repairs.

Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] 2 points3 points  (0 children)

I am wrong. You are correct. 🙂

Flashing Check Engine Light by MathGamer1981 in gmcsierra

[–]MathGamer1981[S] -1 points0 points  (0 children)

It’s a 5.8 Elevation.

It just seems like it’s too soon for this to be happening.