Noticing squealing noises coming from your car’s engine?
It could be a sign of a failing serpentine belt.
Being such a critical component of your vehicle, you might be concerned about replacement costs.
Don’t worry!
Read on to explore the serpentine belt replacement cost, factors affecting the prices, and why it needs urgent attention.
This Article Contains:
- How Much Does a Serpentine Belt Replacement Cost?
- 4 Signs of a Bad Serpentine Belt to Watch For
- How Long Does a Serpentine Belt Last?
- Can You Drive with a Bad Serpentine Belt?
- 3 FAQs on Serpentine Belt
How Much Does a Serpentine Belt Replacement Cost?
Let’s break down the typical expenses and what factors can influence the total replacement cost.
A. Range
The cost to replace a serpentine belt is between $90 and $250.
Parts should cost between $15 and $80, while the labor cost to replace a serpentine belt ranges between $75 and $170.
B. Factors Affecting Cost
The total replacement cost of a failing serpentine belt can depend on the following factors:
- Make and model of your vehicle: The serpentine belt is relatively easy to reach in most vehicles. However, some models might require the removal of other components before accessing the belt, increasing the labor cost to install a new belt.
- Any additional repairs required: The serpentine belt relies on tensioners and pulleys, which will also need replacement if worn out. Additionally, the belt drives accessory components, such as the power steering pump, which can be affected by a broken serpentine belt, leading to more expensive repairs.
- Quality of the part: Original Equipment Manufacturer (OEM) parts tend to be pricier than aftermarket alternatives. However, a higher-quality new belt or tensioner pulley often delivers better performance and lasts longer.
Now that you understand the costs of replacing an old serpentine belt, let’s explore the early warning signs of a failing belt.
4 Signs of a Bad Serpentine Belt to Watch For
Here are the key symptoms that may indicate serpentine belt issues:
- Squealing noises: One of the earliest signs of a failing serpentine belt is a chirping or squealing noise from the front of the vehicle, especially when starting the engine. This often suggests the belt is slipping on an idler pulley, and it’s time for a belt service.
- Malfunctioning power steering and air conditioning: Since the car’s serpentine belt drives the power steering pump and air conditioning compressor, problems with the belt could result in the loss of power steering or a noticeable decrease in the air conditioner’s cooling ability.
- Overheating engine: In some cases, the serpentine belt also powers the water pump, which circulates coolant throughout the engine to prevent overheating. A broken serpentine belt can cause the water pump to fail, leading to engine overheating and an expensive car repair bill. If you notice the temperature gauge climbing, have it inspected by a professional mechanic at a reputable repair shop.
- Cracks on the serpentine belt: Over time, heat, friction, and exposure to contaminants can degrade the belt’s rubber. Cracks, fraying, and glazing indicate you need to book a belt service for a new alternator belt.
Next, let’s delve into the expected lifespan of a serpentine belt.
How Long Does a Serpentine Belt Last?
Serpentine belts typically last between 50,000 and 100,000 miles. Since they’re made of rubber, they’re susceptible to friction, heat, and wear.
You should have it inspected every 50,000 miles to avoid serpentine belt issues.
Knowing how long a serpentine belt typically lasts is crucial.
But what should you do if you suspect a failing belt?
Keep reading to know whether driving with a bad serpentine belt is safe and the potential risks involved.
Can You Drive with a Bad Serpentine Belt?
Driving with a bad or loose belt isn’t recommended, as it can damage your vehicle.
Your car’s serpentine belt powers engine accessories like the alternator and power steering while interacting with components like the idler pulley. A failing serpentine belt or faulty tensioner can damage these components, leading to more expensive repairs, like an alternator replacement.
In fact, if the old belt or a belt tensioner fails, your car will only run for 20 to 90 minutes, so it’s best to visit the nearest auto repair shop for a belt replacement.
Next, to clarify any concerns, let’s address some common questions about serpentine belts.
3 FAQs on Serpentine Belt
To help you better understand the ins and outs of serpentine belts, here are answers to three frequently asked questions:
1. What Does a Serpentine Belt Do?
The serpentine belt, also called the drive belt, fan belt, accessory belt, or alternator belt, links various engine components together. It’s a long continuous belt that powers engine accessories like the alternator, power steering pump, air conditioning compressor, and water pump in some vehicles.
The serpentine belt, driven by the crankshaft pulley, connects to the engine’s crankshaft. As the crankshaft rotates, it turns the pulley, which pulls the belt and powers the various components.
Note: The serpentine belt is different from the timing belt. The timing belt helps synchronize the rotation of the crankshaft and camshaft, ensuring the engine’s valves open and close at the correct time.
2. Can You Replace the Serpentine Belt Yourself?
While you can replace the fan belt yourself, it’s often best left to a professional. The belt must be routed correctly around multiple pulleys, and the proper tension must be maintained. Even a slight misalignment can lead to belt slippage, premature wear, and even damage to the car’s engine.
3. How Do You Maintain a Serpentine Belt?
Here are a few essential tips that help extend the life of your drive belt:
- Inspect the accessory belt with each oil change: Whenever you take your car in for an oil change, have the repair shop inspect the serp belt for any signs of wear.
- Check the serpentine belt tensioner: The belt tensioner regulates the belt tension to ensure it stays on the pulleys. Without enough belt tension, a loose belt can slip off the pulleys, leading to power loss to critical engine components. You should have the serpentine belt tensioner inspected with each service.
- Remember the rule of thumb: If you notice more than three cracks within a one-inch space on the belt, it’s time for a serpentine belt replacement.
Get Quick and Easy Serpentine Belt Replacement with AutoNation Mobile Service
Although the serp belt only needs replacing when it’s old or worn, you shouldn’t ignore early warning signs. Doing so can have catastrophic consequences, including the failure of essential engine components.
Additionally, belt failure while driving can leave you stranded. For the easiest belt replacement solution, consider AutoNation Mobile Service.
We’re a mobile auto repair and maintenance solution offering upfront pricing and a 12-month, 12,000-mile repair warranty.
Contact us, and we’ll replace your old belt directly from your driveway. We also offer services such as battery replacement, wheel alignment, tire repair, brake repair, and fuel filter replacement.