2012 Buick Lacrosse Serpentine Belt Diagram (2024)

FAQs

Where is the serpentine belt diagram? ›

Some vehicles have the serpentine belt diagram located on a decal somewhere in the engine compartment. But if your car does not have a decal, you can easily look up the diagram in a repair manual or repair database. Another option is to take a photo of the old belt before removal.

To replace the Serpentine Belt on this vehicle will require the use of a special tool: Hydraulic Belt Tensioner Compressor.

While serpentine belts should last a considerable time, certain indicators of aging and wear include squealing noises, cracks, nicks, cuts, tears, missing grooves, power steering failure, and an illuminated battery light while the car is running. Addressing these symptoms promptly can prevent unexpected breakdowns.

As an example, “8PK2515” is the PK number found on an OEM serpentine belt. The first digit indicates an eight-rib belt, followed by “P” to identify metric belt sizing, and a “K” showing that this belt conforms to the SAE standard for rib sizing (3.56 millimeters wide for automotive-type serpentine belts).

A: Commonly a belt routing diagram sticker is on the underside of the hood or in the engine compartment. If there is no diagram, make a sketch of the belt and pulleys before removing the belt.

You can replace only the pulley, or you can buy a new tensioner with a new pulley attached, or you can buy a kit with a new belt, tensioner/pulley, and idler pulley if there is one, and do it all.

Common symptoms of a malfunctioning idler pulley include corrosion on the pulley's surface, chattering and squealing noises, and slow spinning. Recommended idler pulley brands include Replacement, Gates, and Dayco.

You can find the correct size of serpentine belt for your car in the owner's manual or by using an online belt sizing tool. If you are unsure about the size of the serpentine belt you need, it is best to consult a mechanic or an auto parts store.

The average cost for serpentine belt replacement is between $109 and $134. Labor costs are estimated between $57 and $72, while parts range between $52 and $62. Whether you go to the mechanic or do it yourself, replacing a serpentine belt costs $58 to $126.

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An example of a serpentine belt routing diagram (drive belt diagram). In the past, automobile engines had multiple V-belts (also known as fan belts). But now, n...

2012 Buick LaCrosse Serpentine Belt | Advance ...

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Compare 2012 Buick LaCrosse Serpentine Belt brands. Check prices & reviews on aftermarket & stock parts for your 2012 LaCrosse Serpentine Belt. Order yo...

Depending on the engine in your vehicle, the serpentine belt may be located at the front of the engine bay, or it may be along one side. There may be engine covers in the way, so be prepared to remove them if need be.

Since the serpentine belt helps provide power to cool the engine, a faulty belt can cause the car engine to overheat as the water pump will not turn. As soon as the engine begins to overheat, have it inspected by a mechanic as it can cause a breakdown and cause engine damage if left overheated.

Since an overheated engine can be due to several different serious causes, you'll want to have your car inspected as soon as possible. You spot visual signs of wear: Cracks, splits, and fraying are visual indicators of a worn belt. If the belt's sides are glazed over, the belt won't last much longer.