How To Recognize A Subaru Drivetrain Issue

If you’ve been driving your Subaru and something suddenly feels…off, you’re not alone. Whether it's a weird vibration, a delay in acceleration, or an unfamiliar noise from under the car, drivetrain issues can sneak up on even the most well-maintained vehicles. Subaru’s reputation for rugged performance and Symmetrical All-Wheel Drive is well-earned, but even the most reliable systems can experience wear over time. If you're noticing anything unusual, it might be time to visit Empire Subaru to have it checked out. Their certified technicians specialize in everything Subaru—from CVT transmissions to AWD systems—and can pinpoint what’s really going on. You can also browse their current service offers and diagnostics if you're not sure where to start.

Subaru’s drivetrain is a complex system made up of parts that work together to transfer power from the engine to the wheels. It includes components like the transmission, driveshaft, axles, differentials, and transfer case. Because it’s such a crucial part of how your vehicle moves, small issues can quickly become big ones if ignored.

What Exactly Is the Drivetrain in a Subaru?

Let’s break it down. The drivetrain in your Subaru includes:

• Transmission (CVT or manual) – Controls gear shifting and power delivery
• Driveshaft – Transfers power from the transmission to the differential
• Front and rear differentials – Split power between the left and right wheels
• Axles – Deliver that power to the actual wheels
• Transfer case (in AWD models) – Helps distribute power between front and rear axles

Together, these components keep your car moving smoothly and in control, especially in rough weather or uneven terrain. Because Subaru’s AWD system is always working, even minor drivetrain issues can have a big impact on overall performance.

Common Signs of a Subaru Drivetrain Problem

The tricky part about drivetrain issues is that they often start subtly. Here’s what to look for:

1. Vibrations While Driving

If you’re feeling vibrations in the floorboard or through the steering wheel—especially while accelerating—it could be a sign of a worn driveshaft or failing CV joint. These components help transfer torque smoothly. When they wear out, you feel it.

2. Clunking or Knocking Sounds

Hearing a metallic thud or “clunk” when shifting gears or turning at low speeds? That could point to a worn U-joint, loose differential mounts, or even damage within the transmission or axles.

3. Difficulty Accelerating

If your Subaru seems sluggish when you press the gas, or there's a delay before the car starts to move, it might be an issue with the CVT transmission or a slipping differential. These symptoms often worsen over time, so early attention is key.

4. Leaking Fluid

Drivetrain components rely on specialized fluids for lubrication—differential oil, transmission fluid, etc. If you see reddish or dark spots under the car, especially near the middle or rear, it could indicate a fluid leak. Low fluid levels can cause overheating or failure.

5. Check Engine or Warning Lights

While not always specific to the drivetrain, many Subarus are equipped with sensors that monitor AWD performance and transmission behavior. If the warning lights are on and you're noticing weird performance issues, it's worth getting a diagnostic scan.

Is It Safe To Drive With a Drivetrain Issue?

That really depends on the severity. A slight vibration or noise might not be dangerous immediately, but if left unchecked, it can escalate into something more serious—like a complete driveshaft failure, a locked-up differential, or transmission damage. Those are costly, not to mention potentially dangerous if they happen while you're on the road.

In general, if your car feels unsafe or you notice symptoms getting worse, it’s best to stop driving and get it to a shop. Subaru’s AWD system relies on balance—when one part starts acting up, it can throw off the whole system.

How Do These Issues Happen in the First Place?

Wear and tear is a natural part of driving. That said, certain habits or environments can speed up the process. For example:

• Driving regularly on rough terrain or off-road
• Skipping transmission fluid changes
• Ignoring strange noises or vibrations
• Towing heavy loads without proper setup
• Cold-weather conditions where components contract and expand rapidly

Sticking to a regular maintenance schedule can go a long way in preventing drivetrain issues from popping up unexpectedly.

If you're dealing with strange noises, shaking, or performance hiccups in your Subaru, it's best not to brush it off. The drivetrain is too critical to gamble with. Schedule a diagnostic with Empire Subaru, where their certified techs can give you a clear answer—and peace of mind—before things get worse.