Why Does My Tacoma Shake When Accelerating

A Toyota Tacoma is a popular pickup truck, and users love it because of its reliability and performance. But as a four-wheeler vehicle, Toyota also has some common problems.

One of its problems is that Tacoma shakes when accelerating. The problem is very annoying for drivers. If you are experiencing the same issue, take the necessary action without avoiding it. Because the truck “shakes when accelerating” is related to engine issues.

Seven problems that cause Tacoma to shake when accelerating include engine misfires, engine mounts, loose lug nuts, inner CV joints, unbalanced tires, driveshafts, and faulty brake calipers.

In this post, I have discussed the problems and their solutions properly.

1. Engine Misfires

Engine misfire is the most common cause of Tacoma’s shaking. Engine misfire is mostly noticeable at low RPM.

If the engine misfires, it indicates the engine ignition system isn’t working correctly.

A modern engine ignition system contains oil packs, spark plugs, and plug wires.

Most of the time, faulty spark plugs cause engine misfires as well as vehicle shaking.

Some common symptoms of engine misfires are:

  • Check engine light
  • Reduced engine power
  • Rough idling
  • P0300 or P030X related codes

If you experience the above symptoms, including vehicle shaking, it means the engine is misfiring.

Solutions

Inspect the spark plugs to see if they are in good condition or not. If any spark plug seems to be faulty, replace all spark plugs.

I recommend replacing the whole set because replacing one or two spark plugs does not solve the problem completely.

2. Engine Mounts

my tacoma shakes when i accelerate

A vehicle starts shaking when the engine mount goes out. And this is very common in 5 to 6 year old Tacomas.

Generally, the engine mount is made from rubber components and helps to prevent vibration.

Some Toyota models also come with vacuum-controlled engine mounts.

With time, the mount starts to fail and cannot absorb vibrations properly.

If the Tacoma shakes excessively, first check the engine mounts. If the mounts wear out, simply replace them.

Tacoma’s engine mount costs around $270 to $335 to replace.

This includes the labor costs, and the engine mount’s price is approximately $150.

3. Loose Lug Nuts

Lug nuts connect the truck and its wheels tightly. Therefore, drivers can easily control and maneuver the vehicle.

Loose lug nuts are a common cause of Toyota Tacoma shaking when accelerating. While servicing, the lug nuts need to be screwed properly.

If lug nuts are not properly secured, they will lose their grip over time and cause the vehicle to vibrate while accelerating or maneuvering.

Raise the Toyota Tacoma, inspect each tire, and try to shake the tires. If any tire feels shaky, tighten the lug nuts properly.

4. Inner CV Joints

toyota tacoma shakes when accelerating

Damaged CV joints cause the Tacoma to shake. The common symptom of damaged CV joints is that vibration goes away when the driver leaves the accelerator.

However, CV joint issues are common in FWD vehicles. So, damaged CV joint problems are rare in Toyota Tacomas unless yours is modified.

5. Unbalanced Tires

The balance between tires is important to share weight properly. Unbalanced tires cause fast wear and vibrations.

So, make sure all the tires are perfectly balanced. Take your truck to a repair shop to balance the tires perfectly.

6. Bent Driveshaft

The driveshaft transmits torque from the engine to the wheels.

If the driveshaft is bent, its rotation creates vibration.

It is necessary to fix the driveshaft issue as soon as possible.

Because a bad driveshaft damages the transmission too.

7. Brake Caliper

A good brake caliper helps to operate the truck smoothly.

But when it fails to release the brake rotors after braking, the truck shakes.

The brake rotors’ correct alignment is also necessary.

Otherwise, misaligned brake rotors cause vibration in the truck.

So, if there are any problems with the brake caliper, fix it as soon as possible.

FAQs

Can transmission cause vibration on acceleration?

Yes, a faulty transmission causes vibration when accelerating the truck.

The following 7 transmission problems are mainly responsible for the vibration:

  • Low level of transmission fluid.
  • Wear and tear in the transmission.
  • Worn mounts.
  • Misfires
  • Bad driverline angle.
  • Bent in the transmission.
  • Loose mounts, etc.

Why does my truck shake at 75 mph?

Engine misfires are typically responsible for the vehicle’s vibration.

But if a vehicle shakes at 75 mph or starts shaking at 70 mph but stops at 80 mph, it is mainly caused by unbalanced tires.

To fix the problem, the tires need to balance properly.

Take your vehicle to an auto repair shop to balance the tires properly.

How do I know if my ball joints are bad?

Some common symptoms indicate that the ball joints are bad, including:

  • Vibration when accelerating
  • Rattling or clunking noises
  • Uneven wear on the front tire
  • Bad handling
  • Excessive vibration

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