Your automatic car jerks when shifting due to low/dirty transmission fluid, worn internal parts (clutches, solenoids), bad sensors (speed, throttle), engine issues (misfires), or even software glitches, all disrupting the smooth hydraulic pressure or electronic signals needed for timely gear changes, leading to harsh engagement or slippage. It's a sign of a problem, often starting with simple fluid checks but potentially needing professional diagnosis for more complex fixes like sensor replacement or transmission repair.
7 Signs of a Failing Automatic Transmission
What You Can Do: Check the transmission fluid level using the dipstick, usually located under the hood. If it's low, top it up with the appropriate type of transmission fluid specified in your car's manual. If the problem persists, there may be a leak that needs professional attention.
Although it's less common than other issues, transmission problems can lead to a variety of performance issues, including jerking or hesitation during acceleration. Automatic transmissions rely on smooth gear transitions, and if the transmission slips or struggles to change gears, it can result in a jerky sensation.
Check Transmission Fluid: Ensure that the transmission fluid is at the correct level and in good condition. Low or contaminated fluid can impact transmission performance. Fluid Replacement: Replace transmission fluid according to your vehicle's service schedule to maintain smooth operation.
If your gears are slipping, it's a clear sign your car's running low on transmission fluid. When experiencing sudden up and down shifts, high RPMs right before shifting, or erratic shifting, seek assistance from your local service center to prevent your transmission from overheating or becoming damaged.
Jerking during gear shifts in an automatic car can be caused by a variety of issues, from low transmission fluid to worn-out components or software glitches. The good news is that many of these problems can be resolved with proper diagnosis and timely repairs. If your car is experiencing this issue, don't ignore it.
Here, DRIVE Driving School identifies 10 signs that your gearbox is failing.
If you're wondering 'How long can you drive with a bad transmission? ', the safest move is to avoid driving altogether and have it inspected as soon as possible. Continuing to drive could cause severe internal damage, potentially turning what might've been a repairable issue into a complete transmission replacement.
Here's a step-by-step guide to fixing jerking issues when shifting gears in an automatic car:
If you notice that your car jerks when accelerating at low speeds, this is an issue that you shouldn't ignore. A jerking car is often a sign that your car will develop other problems if you don't address this issue through preventative maintenance care or a timely auto repair service.
Low transmission fluid causes erratic hydraulic pressure in the system. Instead of smooth, controlled gear engagement, your transmission experiences moments of insufficient pressure followed by sudden engagement – resulting in the jerking sensation.
The most common cause of automatic transmission failure is low or contaminated transmission fluid, usually resulting from leaks, which causes overheating, excessive friction, and premature wear of internal components, leading to slipping gears and eventual breakdown; overheating from hard driving or towing and a faulty torque converter are also major culprits, highlighting the importance of regular fluid checks and maintenance.
A transmission rebuild usually costs less upfront since you're only replacing damaged parts. A replacement costs more but may come with a better warranty and fewer chances of recurring issues.
On average, automatic transmissions last about 150,000 to 200,000 miles. Fluid changes and routine tune-ups are needed – and without them, you may start to experience problems around, or even before, 100,000 miles.
1. Difficulty shifting gears: Once your transmission begins slipping, you'll notice a seemingly random loss of power and acceleration, and your engine might climb into the RPM redline. This is because your transmission simply isn't engaging the right gear, for some reason or another.
If you let your car run low on gearbox oil, your transmission can shift improperly or not at all. You may find yourself missing gears or feeling a 'grinding sensation' when you're driving.
Automatic Transmission Symptoms In This Page:
Start with the easiest fix
In this case, check the transmission fluid level first. Low fluid can lead to a transmission that shifts hard. It's important to find out why the fluid is low and fix any problems. It could be a leaky seal or other mechanical defect.
Rough or Jerky Gear Shifts
If your vehicle jerks or lurches when changing gears—especially under light acceleration—it's a red flag that something's wrong inside the transmission.
If you see that your dipstick is reading low fluid, it is okay to add just enough fluid to get it back to the proper level. In this case, there is no need to change out the fluid. Keep in mind that a low transmission fluid level is probably an indication that a maintenance check is called for.
You May Have Clogged Fuel Injectors
This is the most common issue associated with a car pulling or jerking as you accelerate. That's because if the fuel injectors are dirty, it's going to result in your vehicle losing power when you step on the accelerator, thereby causing the engine to misfire.
A transmission fluid flush can improve mild symptoms of harsh shifting and hesitation that can be caused by old, contaminated fluid. After a transmission fluid flush, you may notice that your vehicle shifts smoother, and that your transmission operates better than before.