2007 Subaru Forester Motor Mounts: Symptoms, Replacement & Cost

Hey there, Subaru enthusiasts! Ever felt a weird vibration in your trusty 2007 Subaru Forester? Or maybe you've heard some clunking sounds when you accelerate or go over bumps? Chances are, you might be dealing with worn-out motor mounts. These seemingly small components play a HUGE role in your car's performance and, more importantly, your safety. In this detailed guide, we'll dive deep into everything you need to know about 2007 Subaru Forester motor mounts, including their symptoms, how to diagnose them, the replacement process, and even some cost considerations. So, buckle up, and let's get started!

What Exactly are Motor Mounts? Why are They Important?

Alright, let's get the basics down first, shall we? Motor mounts, also known as engine mounts, are essentially the unsung heroes of your car's engine. They are the crucial link between your Forester's engine and the car's frame. Their primary function? To secure the engine in place and absorb the vibrations it produces while it's running. Think of them as shock absorbers for your engine. Without them, your engine would be rattling around like a loose bolt in a toolbox, causing all sorts of problems. These mounts typically consist of a metal bracket and a rubber or polyurethane cushion. The rubber or polyurethane helps to isolate the engine's vibrations from the chassis, providing a smoother and more comfortable ride for you and your passengers. Over time, the rubber can deteriorate due to heat, oil, and general wear and tear, leading to a breakdown of its vibration-dampening capabilities. When this happens, you'll start noticing some of the symptoms we'll get into shortly. Also, motor mounts play a vital role in maintaining the alignment of your engine and preventing damage to other components. They help to prevent excessive movement of the engine during acceleration, braking, and cornering, which could potentially cause damage to belts, hoses, and other engine parts. The importance of functional motor mounts cannot be overstated, as they ensure both the longevity of your engine and the overall safety and comfort of your driving experience. Basically, they're essential for keeping your Forester running smoothly and preventing a whole host of potential issues down the road.

Common Symptoms of Bad Motor Mounts in Your 2007 Subaru Forester

Now, let's talk about how to spot a problem. Identifying the symptoms of failing motor mounts is key to catching the issue early and preventing more serious damage. Here are some of the most common signs that your 2007 Subaru Forester motor mounts might be on their last legs:

• Excessive Engine Vibration: This is often the first and most noticeable symptom. You might feel a stronger-than-usual vibration throughout the car, especially when idling, accelerating, or at certain speeds. The vibration might be more pronounced when the engine is under load, such as when going uphill or carrying a heavy load. It might also be noticeable when the car is in drive or reverse, as the engine torque increases during these maneuvers. Think of it like this: if your engine is shaking more than it should, your mounts probably aren't doing their job.
• Clunking or Thumping Noises: Do you hear a clunking or thumping sound, particularly when accelerating, decelerating, or going over bumps? This could indicate that the engine is moving excessively within the engine bay, hitting against the frame or other components. The noise might sound like a metallic thud or a dull thumping, depending on the severity of the issue. These noises are usually a sign that the motor mount's rubber component has failed or separated from the metal bracket.
• Engine Movement: You might visually observe excessive engine movement. Pop the hood and have someone rev the engine while you watch. If you see the engine rocking or shifting significantly, it's a good indication that your mounts are compromised. This movement can be more pronounced during hard acceleration or when the car is experiencing sudden stops.
• Misalignment of Engine Components: Worn motor mounts can cause the engine to sit at an incorrect angle, potentially leading to misalignment of belts, hoses, and other engine components. This can result in premature wear and tear on these parts, as well as reduced performance.
• Difficulty Shifting Gears: In some cases, bad motor mounts can make it harder to shift gears, especially in manual transmissions. The excessive engine movement can interfere with the clutch linkage or the transmission itself, making it more challenging to change gears smoothly.
• Increased Noise from the Engine: Worn motor mounts can amplify engine noise, making it seem louder than usual. This is because the mounts are no longer effectively absorbing the engine's vibrations, which can transmit through the car's frame and into the cabin.

Diagnosing Motor Mount Problems: A Step-by-Step Guide

Alright, you suspect you have a motor mount issue. Let's walk through how to diagnose it. While it's always a good idea to consult a professional mechanic, here's how you can do some preliminary checks yourself:

1. Visual Inspection: This is the first and simplest step. Open your hood and visually inspect the motor mounts. Look for obvious signs of damage, such as cracks, tears, or separation of the rubber from the metal bracket. Also, check for any oil or fluid leaks around the mounts, as this could indicate that they are deteriorating.
2. Engine Rock Test: With the engine off, try to rock the engine back and forth. If it moves excessively, the mounts are likely worn. You can use a pry bar to gently apply force to the engine, but be careful not to damage any components.
3. Listen for Noises: Start the engine and listen for any unusual noises, such as clunking, thumping, or excessive vibration. Pay attention to when the noises occur (e.g., during acceleration, deceleration, or idling) to help pinpoint the source of the problem.
4. Test Drive: Take your Forester for a test drive and pay close attention to how it handles. Notice any vibrations, clunking noises, or difficulty shifting gears. Drive over bumps and uneven surfaces to see if the symptoms worsen.
5. Professional Inspection: If you're not comfortable performing these checks or if you're unsure about the results, it's always best to have a qualified mechanic inspect your vehicle. They will have the experience and tools to properly diagnose the problem and recommend the appropriate repairs. A mechanic can also use specialized tools to check the motor mounts, such as a stethoscope to listen for noises or a vibration analyzer to measure the level of engine vibration. They can also inspect other related components, such as the transmission mounts and the engine itself, to ensure that the issue is isolated to the motor mounts.

Replacing Motor Mounts: What to Expect

Okay, so you've confirmed that your motor mounts are bad. Now what? Replacing motor mounts can be a bit involved, but it's a job that many DIY enthusiasts can tackle with the right tools and a little bit of know-how. Here’s a general overview of the replacement process for your 2007 Subaru Forester:

1. Gather Your Tools and Parts: You'll need new motor mounts (obviously!), a jack and jack stands, wrenches, sockets, a torque wrench, and possibly a pry bar. Make sure you have the correct size and type of motor mounts for your specific Forester model. You can usually find these at your local auto parts store or online. It is often recommended to replace all motor mounts at the same time to ensure even performance and prevent future issues.
2. Prepare the Vehicle: Park your Forester on a level surface, engage the parking brake, and disconnect the negative terminal of the battery to prevent any electrical hazards.
3. Lift and Support the Vehicle: Use the jack to lift the front of the car and secure it with jack stands. Always prioritize safety when working under a vehicle.
4. Locate the Motor Mounts: Motor mounts are usually found on either side of the engine and sometimes at the rear. Consult your service manual or online resources to pinpoint their exact locations on your 2007 Forester.
5. Remove the Old Mounts: Depending on the design, you might need to support the engine with a jack before removing the old mounts. Then, unbolt the old mounts from the engine and the frame. Be sure to note the orientation of the mounts before removing them.
6. Install the New Mounts: Position the new motor mounts and bolt them into place. Make sure to tighten the bolts to the manufacturer's specified torque specifications. Over-tightening can damage the mounts, while under-tightening can lead to premature failure.
7. Lower and Test: Carefully lower the vehicle and reconnect the battery. Start the engine and check for any unusual noises or vibrations. Take a test drive to ensure everything feels right.

Important Safety Tips: Always wear safety glasses when working under a car. Never work under a car supported only by a jack; always use jack stands. If you're not comfortable with any of these steps, it's always best to have a professional mechanic do the job.

How Much Does It Cost to Replace Motor Mounts on a 2007 Subaru Forester?

Cost is always a factor, right? The cost of replacing motor mounts can vary depending on a few things: the cost of the parts, whether you do it yourself or have a mechanic do it, and your location. Here's a general breakdown:

• Parts: The cost of motor mounts themselves can range from around $50 to $200+ per mount. The price will depend on the brand, the quality of the mount, and whether you opt for OEM (Original Equipment Manufacturer) parts or aftermarket options.
• Labor: If you have a mechanic replace the mounts, you'll also pay for labor. Labor costs can vary widely depending on the shop, but you can generally expect to pay $100 to $500+ for labor, depending on the complexity of the job.
• Total Cost: Overall, you could be looking at a total cost of $200 to $1000+ to replace motor mounts on your 2007 Subaru Forester. Doing it yourself can save you a significant amount of money, but it requires the necessary tools and mechanical knowledge.

Preventative Measures to Extend Motor Mount Life

Want to make those new motor mounts last as long as possible? Here are a few tips to help extend their lifespan:

• Avoid Aggressive Driving: Hard acceleration, sudden braking, and excessive cornering can put extra stress on your motor mounts. Driving smoothly and avoiding these maneuvers can help reduce wear and tear.
• Inspect Regularly: Periodically inspect your motor mounts for signs of damage or wear. Catching issues early can prevent them from becoming major problems.
• Address Oil Leaks Promptly: Oil can degrade the rubber in motor mounts. If you notice any oil leaks from your engine, get them fixed as soon as possible.
• Use Quality Parts: When replacing motor mounts, opt for high-quality parts to ensure they last longer.
• Maintain Your Vehicle: Regular maintenance, such as oil changes and tune-ups, can help keep your engine running smoothly and reduce the stress on your motor mounts.

Conclusion: Keeping Your Forester Running Smoothly

So there you have it, folks! This comprehensive guide to 2007 Subaru Forester motor mounts should have you well-equipped to tackle any potential problems. Remember, addressing issues with your motor mounts promptly not only ensures a smoother ride but also helps protect your engine and other components from damage. Whether you choose to DIY or leave it to the pros, knowing the signs and taking action is key to keeping your trusty Forester running strong for years to come. Now go out there, keep those engines humming, and enjoy the ride!