0 Question Asked: February 14, 2020In: TechnologyWhy do older automatic cars jolt when shifting gears?0I know it has something to do with the transmission, but what exactly is happening?In: Technology ShareFacebook 3 AnswersVoted degansudyka Added an answer on February 14, 2020 at 4:36 pm There is a split second when the gears are spinning but the clutch is not engaged. This means that the car is getting no power to the wheels. When it catches on the gears, one the gears have to slow a bit because they went from spinning with no resistance to spinning with the weight of the car as resistance. Two the car can suddenly start accelerating again because the wheels are receiving torque (power) again after a split second of not.0Reply Share ShareShare on FacebookShare on TwitterShare on LinkedInShare on WhatsApp emmejm Added an answer on February 14, 2020 at 7:55 pm If there’s a lurch or jolt, this generally means that the gears are worn down or things are out of adjustment so the gear doesn’t engage smoothly. At this point, it’s only a matter of time before it begins “slipping.” Slipping can be warded off for a while with service, but once it does begin to slip you need a new transmission pronto because it can fail completely at any point thereafter. You’ll be able to tell it’s slipping if you accelerate but it feels like you’ve lost power when you should have felt it shift up.0Reply Share ShareShare on FacebookShare on TwitterShare on LinkedInShare on WhatsApp wpmason Added an answer on February 14, 2020 at 5:40 pm Autos should be pretty darn smooth overall.Usually hard shifting is a sign that service is necessary.The shifting on older cars is hydraulically actuated, and over timed gunk and grime can build up creating problems with the hydraulic pressure.0Reply Share ShareShare on FacebookShare on TwitterShare on LinkedInShare on WhatsAppLeave an answerLeave an answerCancel reply Attachment Select file Browse Featured image Select file Browse What is the capital of UK? ( London ) Save my name, email, and website in this browser for the next time I comment.