How do you know if your belt tensioner needs to be replaced?
Appearance: Cycle the tensioner (mounted on the engine) through the entire range of motion (from stop to stop) by applying torque to the arm with a wrench. The tensioner arm should move smoothly and freely. Solution: If you notice a binding, sticking or grinding tensioner arm, the tensioner should be replaced. via
Is it hard to replace a belt tensioner?
Serpentine belt replacement is easy because today's automatic drive belt tensioners eliminate the need to loosen bolts or pry components into position for retensioning. Just rotate the tensioner, remove the old belt and install a new one. via
How much does it cost to replace a belt tensioner?
The average cost for a drive belt tensioner replacement is between $211 and $239. Labor costs are between $73 and $93, while parts are priced between $138 and $146. Taxes and fees are not included in the estimate. via
What happens when belt tensioner goes bad?
A seized or loose drive belt tensioner can cause the belt to snap, which will disables those accessories and can cause problems such as overheating, a dead electrical system and battery, or a disabled AC system. via
How often should you replace a belt tensioner?
You should expect to replace your belt tensioner in the 40,000-70,000 mile range. It is also customary to swap more than one part simultaneously, usually a worn-out pulley from other systems and even the serpentine belt itself. via
Can you adjust an automatic belt tensioner?
Cars equipped with an automatic belt tensioner adjust themselves over time and do not require adjustment. This article shows you the process to adjust drive belts on a pivot-style belt adjuster. via
How long does a timing belt tensioner last?
How Long Does a Timing Belt Tensioner Last? Unlike the timing belt itself, the tensioner doesn't necessarily have a manufacturer's recommended change interval. In almost all cases, the timing belt tensioner should be replaced at the same time as the timing belt which is generally between 75,000 and 100,000 miles. via
Do I need to replace tensioner with timing belt?
Generally, the idler pulleys, tensioner and water pump should always be replaced when the timing belt is replaced. In most cases, the timing belt drives the water pump, so it is the right time to replace the water pump. It is also recommended by the manufacturer. via
How long does it take to replace a serpentine belt and tensioner?
It can take anything from 15 minutes to an hour (two at the most) to repair or replace a bad serpentine belt with a new belt. via
What causes tensioner to fail?
The most common causes of timing belt tensioner failure include: Wear and tear: On a new mechanical timing belt tensioner system, the timing belt tensioner spring is wound tightly by two tension rods. Over time, the spring stretches out and loses its tension. As a result, the entire tensioner becomes too weak. via
Can you drive with a bad belt tensioner?
Driving with a bad belt tensioner is unsafe since the tensioner is meant to guarantee ample tension that powers accessories. Wear on the belt tensioner will eventually cause the belt to slip, generate loud noise, and also create an unsafe level of heat along the accessory pulleys. via
How do you remove a belt tensioner?
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. via
Should I replace pulleys when replacing serpentine belt?
The pulley should spin evenly and not immediately stop or grind. If you see any of these problems, you should plan to replace all the pulleys associated with the serpentine belt. via
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. via
How do I check the tension on my drive belt?
Although a tension gauge is handy, you may use your fingers to check the tension. Press the belt down around the center of the span and make note of the deflection. If the belt can be pushed down more than half an inch, you will have to adjust the tension. via
What does a failing timing belt sound like?
A failing bad timing belt sounds like a ticking noise in front of your car when it starts wearing out. If the belt eventually breaks, it will give a whining noise when trying to start the engine. A whining noise sounds like no compression in the engine. via
How do you fix a noisy pulley? (video)
Does the tensioner pulley spin?
Checking the Tensioner
Spin the pulley to see if it spins freely. If you hear grinding or the pulley doesn't spin freely, replace the tensioner. When you replace the belt, it should take a lot of muscle power to move the tensioner. If you can move it easily, the spring tension is most likely not tight enough. via
What tools do I need to replace a serpentine belt?
Can you drive a car without the serpentine belt?
Under no circumstances can you drive a vehicle without a serpentine belt because the serpentine belt serves the important function of delivering antifreeze to important parts of the engine. The serpentine belt drives the water pump, and without it, there is insufficient coolant flow to maintain the engine temperature. via