2018 Kia Optima — clunk when changing from reverse to drive
There is a single clunk when changing direction at low speed, especially reverse to drive. No vibration while cruising. What would you inspect first: mounts, d…
Transmission
Repairs & Ownership
2012 Honda Pilot — humming rises with road speed, not engine RPM
2012 Honda Pilot EX-L, about 187,500 miles. There is a low hum that rises with road speed regardless of engine RPM.
Need advice: Shudder at light throttle around 40 mph
I get a light shudder at steady throttle around 35–45 mph. If I accelerate harder or lift off, it goes away. Trying to figure out whether this sounds more like…
TireDriverCommunity StarterJul 14, 20262023 GMC Sierra 1500 AT4Boston / New England0 replies0 helpful
2020 GMC Yukon — clunk when changing from reverse to drive — anyone dealt with this recently?
2020 GMC Yukon Denali, about 29,500 miles. There is a single clunk when changing direction at low speed, especially reverse to drive. No vibration while cruisi…
2022 Volvo XC90 — humming rises with road speed, not engine RPM
2022 Volvo XC90 Recharge, about 60,000 miles. There is a low hum that rises with road speed regardless of engine RPM.
2024 Rivian R1S Dual-Motor — shudder at light throttle around 40 mph
2024 Rivian R1S Dual-Motor, about 1,200 miles. I get a light shudder at steady throttle around 35–45 mph. If I accelerate harder or lift off, it goes away. Try…
1968 Ford Mustang — humming rises with road speed, not engine RPM
There is a low hum that rises with road speed regardless of engine RPM. Turning slightly left or right changes the sound. Is that enough to suspect a wheel bea…
2023 Jeep Wrangler Rubicon — need advice: Shudder at light throttle around 40 mph
2023 Jeep Wrangler Rubicon, about 14,500 miles. I get a light shudder at steady throttle around 35–45 mph. If I accelerate harder or lift off, it goes away. Tr…
2024 Mercedes-Benz C-Class — humming rises with road speed, not engine RPM
2024 Mercedes-Benz C-Class C300, about 20,000 miles. There is a low hum that rises with road speed regardless of engine RPM.
ManualDaily690Community StarterMay 20, 20262024 Mercedes-Benz C-Class C300Long Island0 replies0 helpful
1988 Toyota Land Cruiser — humming rises with road speed, not engine RPM
1988 Toyota Land Cruiser FJ62, about 156,500 miles. There is a low hum that rises with road speed regardless of engine RPM. Turning slightly left or right chan…
2024 Mazda MX-5 Miata Club — should I service 'lifetime' transmission fluid?
Manual says the transmission fluid is lifetime under normal use, but the car is approaching 80k miles and I plan to keep it a long time. Curious what owners ar…
2022 Toyota RAV4 Hybrid XSE — anyone else: Shudder at light throttle around 40 mph
I get a light shudder at steady throttle around 35–45 mph. If I accelerate harder or lift off, it goes away. Trying to figure out whether this sounds more like…
2019 Volkswagen Atlas — humming rises with road speed, not engine RPM
2019 Volkswagen Atlas SEL, about 140,500 miles. There is a low hum that rises with road speed regardless of engine RPM.
2021 Nissan Rogue SV — should I service 'lifetime' transmission fluid?
2021 Nissan Rogue SV, about 78,000 miles. Manual says the transmission fluid is lifetime under normal use, but the car is approaching 80k miles and I plan to k…
2021 Chevrolet Silverado 1500 LTZ 6.2 — silverado light-throttle shudder: engine or transmission?
2021 Chevrolet Silverado 1500 LTZ 6.2, about 151,000 miles. At steady speed with light throttle I get a vibration that feels almost like driving over fine rumb…
TurboCamper60Community StarterAug 11, 20262021 Chevrolet Silverado 1500 LTZ 6.2Orange County5 replies0 helpful
2025 Porsche Macan — clunk when changing from reverse to drive
2025 Porsche Macan Electric 4S, about 29,000 miles. There is a single clunk when changing direction at low speed, especially reverse to drive. No vibration whi…
RoadTripHaulerCommunity StarterApr 13, 20262025 Porsche Macan Electric 4SSacramento0 replies0 helpful
1993 Mazda RX-7 — humming rises with road speed, not engine RPM
There is a low hum that rises with road speed regardless of engine RPM. Turning slightly left or right changes the sound. Is that enough to suspect a wheel bea…
2018 Volvo S90 — light-throttle shudder around 35–45 mph
There is a rumble-strip-like shudder at steady light throttle in a narrow speed range. Harder acceleration or lifting off makes it disappear.
2017 Jeep Grand Cherokee — light-throttle shudder around 35–45 mph
2017 Jeep Grand Cherokee Limited, about 52,500 miles. There is a rumble-strip-like shudder at steady light throttle in a narrow speed range. Harder acceleratio…
2021 Range Rover Sport — service lifetime transmission fluid or leave it alone?
2021 Range Rover Sport HSE, about 59,000 miles. The manual treats the fluid as lifetime under normal conditions, but the vehicle is getting older and I plan to…