Performance enthusiast. Here to compare notes, learn, and talk cars.
2023 Lincoln Navigator Reserve, about 11,000 miles. There is a light buzz from the dash at one narrow RPM range. It disappears above and below that speed. Any good method for locating trim resonance…
2025 BMW M3 Competition, about 18,500 miles. We agreed on a vehicle price, then the worksheet included dealer-installed products I did not ask for. The total is now higher than before. What is the cl…
2021 Nissan Rogue SV, about 41,000 miles. Long-term fuel trims are much more positive at idle than at 2,500 RPM. No obvious misfire. Does that pattern still make an intake/vacuum leak the first place…
The dealer says the car passed the manufacturer CPO inspection and suggests an outside inspection is unnecessary. I like the warranty but still want an independent PPI. Overkill or sensible? I am in…
