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Does the serpentine belt affect brakes?
A: On most vehicles the serpentine belt runs the power steering pump, water pump, air conditioning compressor, and alternator. If the belt breaks, all of these components will not function. Power brakes commonly get their power from vacuum pressure from the engine or hydraulic pressure from the power steering pump.
What happens when the idler pulley breaks?
A broken or seized pulley can quickly lead to a torn belt, or in less serious cases, the belt falling off of the engine. An engine without a belt can quickly run into issues such as overheating and stalling, as it’s the drive belt that allows the engine accessories to function.
What causes belt tensioner pulley to break?
The belt can break due to a number of reasons, but the most common is age. One other common problem is the belt tensioner. If the tensioner is bad, it can cause the belt to come loose or cause the pulley to seize, making the belt come off.

What happens to an engine when the serpentine belt breaks?
Some vehicles’ water pumps, radiator fans, and power brakes are also dependent on the serpentine belt. If your serpentine belt wears out, becomes damaged or contaminated, or breaks, engine accessories will not be able to spin at the proper speed, leading to decreased power to the electrical system.
Can you drive with a broken pulley?
Idler pulleys are a completely different story. In some cases, you will be able to safely drive for tens of thousands of miles before you notice any drops in performance. But, it takes only one slip of the belt for the engine to lose momentum and for you to lose control over the vehicle.

Can you drive a car after the serpentine belt breaks?
When should you replace a serpentine belt? If a serpentine belt breaks, a car won’t be drivable and will have to be towed. If the engine runs without a serpentine belt, it might overheat as the water pump will no longer work. A broken belt can also damage other parts.
How much does it cost to replace serpentine belt?
A typical serpentine belt start at around $25 and goes up to $75 at most. If you know some car repair basics, you could change the belt yourself, and it may save you paying labor charges somewhere between $75 and $120. All together, you’re looking at around $100 to $195 to replace your serpentine belt.
Does the serpentine belt affect the transmission?
A Broken Serpentine Belt Could Ruin the Transmission If your car’s serpentine belt breaks, the transmission could be damaged. Almost as soon as your car’s serpentine belt breaks, the engine will begin to overheat. Without the belt running, the water pump won’t be able to adequately cool your engine.
How much does it cost to replace a pulley and serpentine belt?
The Average Cost to Replace a Serpentine Belt Is $58 to $126 Depending on if You Go to the Mechanic or DIY. This price range is based on national averages for all vehicles and does not factor in taxes, fees, or your particular make and model. Related repairs or maintenance may also be needed.
Does serpentine belt affect acceleration?
Can A Bad Serpentine Belt Cause Acceleration Problems? Yes, it could. Bad serpentine belts cause loss of power. Especially in situations where slippage occurs and the alternator supplies power to the ECM.
Are pulleys expensive to fix?
Idler Pulley Replacement Cost The cost to replace the idler pulley of your driver belt will usually be somewhere between $80 and $200. The cost for the new part should only be anywhere from $40 to $90, while the cost of the labor will be anywhere from $40 to $110.