2018 Cadillac CTS-V — metallic rattle for a few seconds after cold start
There is a short metallic rattle after the first cold start of the day, then it disappears once the engine settles. Warm restarts are quiet. Where would you st…
Diagnostics & Mystery Problems
Repairs & Ownership
2021 BMW X5 xDrive40i — intermittent metallic rattle after cold start
For the first few seconds after a cold start I hear a metallic rattle, then it disappears and won't come back once the engine is warm. No warning lights and it…
2025 Porsche Macan Electric 4S — intermittent metallic rattle after cold start
For the first few seconds after a cold start I hear a metallic rattle, then it disappears and won't come back once the engine is warm. No warning lights and it…
QuattroCamper4Community StarterOct 31, 20252025 Porsche Macan Electric 4SSalt Lake City2 replies0 helpful
2022 Genesis GV70 3.5T — anyone else: Weird vibration only between 62–70 mph
2022 Genesis GV70 3.5T, about 118,000 miles. Car is smooth around town, but on the highway I get a vibration in the steering wheel and seat between about 62 an…
BatteryDriver9Community StarterOct 25, 20252022 Genesis GV70 3.5TDenver / Front Range4 replies0 helpful
2020 BMW M2 — check-engine light turned itself off — still scan it?
The light was on for two days and then disappeared before I could schedule service. Car feels normal. Is there still likely to be useful stored or pending data…
2018 Volvo S90 — steering wheel vibration only at one highway speed
The car is smooth around town, but there is a noticeable steering-wheel vibration in a narrow highway speed range. It gets better again above that speed. Tires…
2023 BMW M340i — intermittent hesitation pulling away from a stop
2023 BMW M340i xDrive, about 10,000 miles. Every few days the car hesitates for a split second leaving a stop, then drives normally. No permanent warning light…
2024 Ford Mustang GT — car hesitates once, then drives normally
2024 Ford Mustang GT, about 78,000 miles. Every few days I get a brief hesitation pulling away from a stop. It feels like the engine cuts power for half a seco…
2025 Toyota Camry XSE — question: Car hesitates once, then drives normally
2025 Toyota Camry XSE, about 151,000 miles. Every few days I get a brief hesitation pulling away from a stop. It feels like the engine cuts power for half a se…
2022 Toyota RAV4 — steering wheel vibration only at one highway speed
2022 Toyota RAV4 Hybrid XSE, about 61,500 miles. The car is smooth around town, but there is a noticeable steering-wheel vibration in a narrow highway speed ra…
2017 Hyundai Elantra — check-engine light turned itself off — still scan it?
The light was on for two days and then disappeared before I could schedule service. Car feels normal. Is there still likely to be useful stored or pending data…
2015 Volkswagen Golf — vibration under acceleration but not while coasting
The car is smooth at the same road speed when I lift off, but under moderate acceleration I can feel a vibration through the floor. What would you inspect firs…
2008 Honda Accord — steering wheel vibration only at one highway speed
2008 Honda Accord EX-L, about 225,500 miles. The car is smooth around town, but there is a noticeable steering-wheel vibration in a narrow highway speed range.…
2020 Acura RDX — check-engine light turned itself off — still scan it?
The light was on for two days and then disappeared before I could schedule service. Car feels normal. Is there still likely to be useful stored or pending data…
2023 Jeep Wrangler — check-engine light turned itself off — still scan it? — second opinion before I spend money
The light was on for two days and then disappeared before I could schedule service. Car feels normal. Is there still likely to be useful stored or pending data…
1999 Toyota 4Runner — vibration under acceleration but not while coasting
1999 Toyota 4Runner SR5, about 238,000 miles. The car is smooth at the same road speed when I lift off, but under moderate acceleration I can feel a vibration…