Can I replace serpentine belt by myself?
Replacing a serpentine belt is a common maintenance task that many car owners consider tackling themselves. While it can save you money and time, it’s important to understand the process, tools required, and potential challenges before deciding to take on this repair. At Kevin's Autos, we’ve seen countless cases where a little preparation made all the difference between a successful DIY repair and a frustrating experience.
What Is a Serpentine Belt and Why Is It Important?
The serpentine belt is a critical component of your vehicle’s engine. It powers essential systems such as the alternator, power steering pump, air conditioning compressor, and sometimes the water pump. A worn or broken serpentine belt can lead to serious issues, including engine overheating or loss of power steering, leaving you stranded on the road.
Can You Replace It Yourself?
Yes, replacing a serpentine belt is a task that many car owners can handle themselves, provided they have the right tools, knowledge, and confidence. However, it’s not always straightforward, and there are a few factors to consider:
- Experience Level: If you’re comfortable working under the hood and have performed basic car maintenance tasks before, you may find this repair manageable.
- Tools Required: You’ll need a serpentine belt tool or a wrench to release the tensioner, as well as a diagram of the belt routing (often found in your owner’s manual or under the hood).
- Access to the Belt: In some vehicles, the serpentine belt is easily accessible, while in others, you may need to remove components like the engine cover or splash guard.
Steps to Replace a Serpentine Belt
If you decide to replace the serpentine belt yourself, follow these steps carefully:
- Step 1: Locate the serpentine belt and study the belt routing diagram. If there’s no diagram available, take a picture of the belt’s current routing for reference.
- Step 2: Use the serpentine belt tool or wrench to release the tensioner and slide the old belt off the pulleys.
- Step 3: Compare the old belt with the new one to ensure they are the same size and type.
- Step 4: Route the new belt around the pulleys according to the diagram, leaving the tensioner pulley for last.
- Step 5: Use the tool to move the tensioner and slip the belt over the final pulley. Double-check that the belt is properly seated on all pulleys.
- Step 6: Start the engine and observe the belt to ensure it’s running smoothly and correctly aligned.
When to Call a Professional
While replacing a serpentine belt can be a DIY-friendly task, there are situations where it’s best to leave it to the professionals:
- If the belt is difficult to access or requires removing multiple components.
- If you’re unsure about the belt routing or don’t have the necessary tools.
- If the tensioner or pulleys are damaged and need replacement.
At Kevin’s Autos, we’re always here to help. Whether you need advice, tools, or a professional to handle the job, our experienced technicians can ensure your serpentine belt is replaced quickly and correctly. Don’t hesitate to reach out if you’re in doubt!
Final Thoughts
Replacing a serpentine belt by yourself can be a rewarding experience and a great way to save money on car maintenance. However, it’s essential to assess your skills, tools, and the complexity of the job before diving in. If you’re ever unsure, remember that professional help is just a call away. At Kevin’s Autos, we’re committed to keeping your car running smoothly and safely.
Frequently Asked Questions
What size wrench do I need to replace a serpentine belt?
Use a 17mm wrench to pull the tension back, then tighten the 13mm bolt which locks the slotted portion in the bracket. Remove the belt, this can be tricky if you are working with an inline drivetrain that is equipped with a mechanical fan.
Is it OK to drive without a serpentine belt?
Technically, you can drive your vehicle - but, ideally, to the nearest auto repair shop or back home to fix the issue yourself. Once you discover that your serpentine belt is broken, you should make plans to find another means of transportation.
What are the symptoms of a bad serpentine belt?
Bad serpentine belt symptoms
- Squeaking, squealing or chirping sound from under the hood of the car.
- Check engine light or battery light is illuminated on your dashboard.
- A/C isn't working.
- Power steering isn't working.
- The engine's temperature is high or overheating.
- Smell of burnt rubber.
Does your car run better with a new serpentine belt?
A serpentine belt is an essential component of your car but is not made to last forever. A failing serpentine belt affects your vehicle's performance and leads to issues like overheating and alternator problems. Read on to learn more about how a serpentine belt works and when it should be replaced.
What are the signs of a bad serpentine belt?
Bad serpentine belt symptoms
- Squeaking, squealing or chirping sound from under the hood of the car.
- Check engine light or battery light is illuminated on your dashboard.
- A/C isn't working.
- Power steering isn't working.
- The engine's temperature is high or overheating.
- Smell of burnt rubber.
Will AAA replace a serpentine belt?
We can check all the belts to make sure they're in proper working order. If you do need a replacement, we can install it for you immediately.
Is it hard to replace your own serpentine belt?
Serpentine belts are very easy to replace and are fairly inexpensive. Only one tool is needed, and you shouldn't need to remove any parts from the engine. (Edit: some cars may require the removal of a plastic engine cover.) Do not drive your car with a broken serpentine belt.
How much does a mechanic charge to change a serpentine belt?
Of course, like any other rubber component, your car's serpentine belt can eventually wear out. When that happens, you'll want to replace the belt right away to avoid a breakdown and additional repairs. Expect to pay somewhere between $150 and $250 if you want a professional to replace your serpentine belt.
How long does it take to change a serpentine belt?
Plus, replacement is relatively easy, and if you're wondering how long does serpentine belt service take, it's less than an hour for most vehicles.
Do you need a special tool to replace serpentine belt?
What tools do I need to replace a serpentine belt? For most DIYers, you can do it with a breaker bar or belt tension tool, a ratchet and socket set, safety goggles and gloves, and your new belt.
