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Today we’re going to be talking about serpentine belts for our Belleville, Illinois customers. Let’s start by talking about the accessories that are driven by the serpentine belt. First is the alternator. That’s the important device that makes electricity to power the Sedan and recharge the battery. Then there’s the air conditioning compressor that makes cool air for you while you're driving around Illinois in the summer.

The power steering and power brake pumps are driven by the serpentine belt in most Belleville motorists' vehicles. Those pumps provide essential pressure that assists your steering and braking.

In many Sedans, the water pump is driven by the serpentine belt. The water pump is what circulates the coolant that protects your engine. In some cars around Belleville, Illinois, the water pump is driven by the timing belt.

The radiator cooling fans on some Sedans are also driven by the serpentine belt. Some have separate electric motors. That’s really a lot of essential work for one belt.

But modern engine design has a single belt that snakes around the front of the engine and drives most if not all of these accessories. Serpentine belts do a lot of critical work, but they’re tough and can last Belleville drivers for thousands of miles.

Just how long will they last? That’ll vary for each individual car in the Belleville, Illinois area. Your auto manufacturer will have a recommendation for when it should be changed, but it could need it sooner. The good news is that a visual inspection at Stock's Underhood Specialists Inc. can detect a belt that’s getting close to failing.

Your honest Stock's Underhood Specialists Inc. service specialist can look at the belt: if it has more than three or four cracks per inch, it needs to be replaced. A deep crack that’s more than half the depth of the belt - replace. Frayed, missing pieces, a shiny glazed look? Toss it.

What’s involved in replacing the belt at Stock's Underhood Specialists Inc.? First the old belt is removed. Then a new one is fitted around all the pulleys for the accessories and the drive. There’s a special pulley called a tensioner.

This pulley is mounted to the engine block with a spring loaded arm. Its important job is to apply the correct amount of tension to the belt to keep it from getting loose and maybe slipping off. Because the spring in the tensioner pulley wears out, AutoNetTV and the automotive professionals at Stock's Underhood Specialists Inc. recommend Belleville car owners replace them at the same time as the belt. It just makes sense.

What are the warning signs that there’s a problem with the serpentine belt? You may hear a squealing sound from under the hood when accelerating around our Belleville streets. A loose belt might give you a slow, slapping sound.

What do you do if your belt breaks? If you’ve actually had that happen on a busy St. Louis interstate, it can be a little scary. The first thing Belleville car owners usually notice is that they have no power steering or power brakes. Don’t panic – you can still steer and brake, but you’ll have to do the work. It’ll be harder to steer and you’ll need more time and effort to stop, so plan accordingly.

Your dashboard will light up will all kinds of warnings. You’ll see a warning about your cooling system if you have a water pump that’s driven by the serpentine belt. This is critical because without your cooling system working, your engine will overheat. If you don’t stop you’ll have massive engine damage, maybe to the point that you need a new engine. Open your windows and turn the heater on full blast to provide a little engine cooling. Pull over as quickly as you safely can!

The battery light will come on because the alternator isn’t working. If your car’s water pump isn’t driven by the serpentine belt, you’re not in danger of overheating so you can drive a little further if necessary. But the battery will run down to the point where the car will just shut off. You don’t want that to happen while you’re driving in our local Belleville, Illinois traffic.

Remember, Belleville motorists can avoid this stressful scenario if they replace their Sedan serpentine belt on schedule. Ask your honest Stock's Underhood Specialists Inc. technician to check your belts and hoses from time to time so you can take care of them if they need to be replaced prematurely.

Stock's Underhood Specialists Inc.
321 Centreville Ave.
Belleville, Illinois 62220-1909
618.233.6119

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