Why does my car jerk when shifting gears with an automatic transmission?

Automatic transmissions that shift hard, jerk or shake during a shift change may mean your transmission fluid needs changed or fluid level is low. In manual transmission vehicles, abnormal gear shifts could indicate damaged gear synchros, worn clutches or other, more severe issues.

Can dirty transmission fluid cause jerking?

Worn fluid can lead to hard shifts

The fluid's frictional properties play a vital role in ensuring the clutch plates bind together properly and gear shifts occur seamlessly. Over time, the fluid's frictional properties can degrade, leading to hard, jerky or inconsistent shifts.

What are the signs your auto transmission is going out?

Clunking, humming or whining sounds are signs of automatic transmission problems. Faulty manual transmissions will also give off loud machinelike sounds that seem to come out of nowhere. A clunking noise when you shift gears is a telltale transmission situation.

What does a transmission jerk feel like?

A slipping transmission tends to feel like your car is jerking or surging. You might even notice that the engine revs to a high RPM between gear changes. As you are driving, the transmission should be providing constant power to the wheels.

Why is my automatic car jerking?

If you have an automatic, your car may jerk because of transmission problems but it's not as common. Fuel and air supply issues are the most common causes for a car that jerks when accelerating. The next common issue is with the ignition system, where your engine isn't igniting the fuel and air mixture properly.

How to Fix a Jerky Transmission

What would make a car jerk when accelerating?

Dirty Fuel Injectors

Dirty fuel injectors are among the most common reasons for why an accelerator becomes jerky. The dirty injector leads to your car losing power when you attempt to accelerate while at a stop and when you try to drive at a consistent speed. This is the result of an engine misfire.

How do I know if my transmission fluid is low?

How do I know if my transmission filter is clogged?

Does changing transmission fluid help shifting?

Though changing transmission fluid can't fix mechanical problems, it does make for smoother shifts and can extend the life of your transmission. And even when manufacturers recommend fluid change intervals of 150,000 miles under normal conditions, it may be a good idea to change it more frequently.

What is jerky transmission?

Find Out Why Your Transmission is Kicking

It's one of the most common problems drivers experience when troubles arise with their vehicles' transmissions: transmission kicking, also referred to as hard or jerky shifting when changing gears.

Can I just add transmission fluid?

Step 1: Get the right type of fluid.

Once you have established that the transmission needs more fluid to be added to it, then you need to obtain both the proper type of transmission fluid for your vehicle (the vehicle's manual will specify) and a long, thin funnel to aid in adding it to the existing fluid.

Is it safe to drive a jerking car?

A car that surges or jerks at high speed is potentially dangerous, especially in heavy traffic or in bad weather. If your vehicle jerks at high speed, you should stop driving it and have it inspected by a mechanic.

What does car jerking mean?

Schedule Service. When your car jerks or stumbles upon acceleration, it usually means something is interfering with the proper distribution and transfer of power. Probably the most benign meaning is if you're driving a manual transmission and simply haven't gained the feel of shifting for your particular vehicle.

Can low oil cause car to jerk?

Re: If your oil is low would that cause jerking and… Hi, if your oil is low you may be causing the engine to overheat and that may lead to the engine seizing. Better top up the oil and see if the problem goes away.

What happens if you drive with low transmission fluid?

Sometimes, a malfunctioned transmission might trigger leaks of the transmission fluid. It causes the levels of the fluid to go low, which affects the functionality of the vehicle. Driving through low transmission fluid levels might result in permanent and costly vehicle damages and expensive repairs.

How often should automatic transmission fluid be changed in a vehicle?

Automatic: Every 60,000 to 100,000 miles

If you drive manual, most manufacturers will recommend changing your transmission fluid every 30,000 to 60,000 miles. If you have automatic, you can typically boost that range up to 60,000 to 100,000 miles. There's no harm in changing your fluid early.

Can you mix old and new transmission fluid?

This fluid starts to lose its standard properties and should be changed to keep the transmission parts and its performance at its peak. Mixing old and news fluids wont give you the ideal viscosity and the reduces the performance of the transmission system.

Should the engine be running when adding transmission fluid?

Your car's engine should be running when you add fluid to the transmission, but you should have the transmission in park and the handbrake activated for safety. Check the owner's manual for instructions on selecting the correct transmission fluid for your vehicle.

Should I change transmission fluid hot or cold?

Fluid changes should only be done when the engine and transmission are at normal operating temperatures. With your vehicle raised, let the engine idle for a few minutes, then turn it off. When the transmission fluid is still warm, but the vehicle has cooled down, you're ready to remove the old transmission fluid.

Why you should never change transmission fluid?

Don't do it unless your transmission is running fine and the fluid is first-rate, because it can make transmission failure imminent. Some shops will not change the automatic transmission fluid on high-mileage cars due to the risk of problems arising after the service.

How long is transmission fluid Good For?

Most manufacturers recommend replacing transmission fluid every 30,000 to 60,000 miles. If you tow, or do mostly city driving with constant changes of gears, it may be wise to change your ATF even more often.

How long can a transmission last without changing fluid?

The manufacturer's maintenance schedule for many automatic transmissions doesn't call for fresh fluid until 100,000 miles or, with some Ford transmissions, even 150,000 miles. A lot of mechanics say that is too long and that it should be done at least every 50,000 miles.