Hello All,
Problem: The idle feels like it bogs down when rolling to a stop, and applying the brakes firmly. (that last 10 feet of braking) I believe it may be when cold only.
Background: I bought a used 2018 Silverado 1500 double cab LS 4x4 with 100,000 miles. I drove it without issue for a few months, and then started doing the 100k miles services myself. So far I have changed the oil, the differential fluids, the trans fluid, and transfer case fluid. I have not yet changed the spark plugs.
I saw online that it might be the Idle Air Controller? If that is the case should I purchase a scanner to see if there are air/fuel mixture codes? It is also possible that this is not a flaw and just a random hiccup.