If you decide to attempt the repair yourself, consult your owner’s manual for any specifications, do research online to prepare for the repair and get all your timing belts and chains at AutoZone. Many timing belts can be purchased with accessory parts, like gaskets, pulleys, tensioners, and even water pumps, in a kit that makes the overall cost less impactful.

Advice, how-to guides, and car care information featured on AutoZone.com and AutoZone Advice & How-To’s are presented as helpful resources for general maintenance and automotive repairs from a general perspective only and should be used at your own risk. Information is accurate and true to the best of AutoZone’s knowledge, however, there may be omissions, errors or mistakes.

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In many modern engines, the valves that open for air and fuel intake and exhaust output actually share space with the moving piston, although never at the same time. This style of engine is called an interference engine and, as you can imagine, creates a requirement for those valves and pistons to be perfectly coordinated. If they step out of alignment for even a moment, the piston can strike and damage the valve, rendering the engine inoperable.

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Your car battery starts your engine and your engine helps the alternator recharge your battery. There's more to it than that though. Learn how it works.

Your timing belt or timing chain connects your crankshaft to your camshaft, or multiple camshafts, and conducts the intricate dance that plays out in your running engine, managing the input and output of air, fuel, and exhaust. A timing failure can catastrophically damage the engine, so read on to learn about how to maintain this important engine part.

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Discover why your car's serpentine belt makes noise and how to fix it. Learn about common causes, diagnostics, and solutions at AutoZone.

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One very important step when replacing a timing belt is to carefully mark the position of the crankshaft pulley and the camshaft pulleys before you remove the original belt. You may also need to use a special tool to hold the camshafts in place.

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Timing chains last much longer than belts, especially when maintained properly. One of the best things you can do for your timing chain and your engine as a whole is to provide regular oil changes and always replace the oil filter at the same time.

Early vehicles used chains or gears to manage the timing and belts only became common in consumer vehicles during the 1960s. In the 1990s, automakers moved back to timing chains and modern cars tend to have a timing chain.

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A timing belt does not require lubrication, and in fact, any oil or engine fluids that touch the rubber belt can damage the material and lead to failure over time. This is why timing belts are installed in a “dry” setup, away from engine fluids, while timing chains are lubricated in a “wet” setup.

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The maintenance costs for a vehicle with a timing chain is mostly related to your oil change interval. If you change your oil regularly, according to your manufacturer’s recommendations, it will protect the timing chain and keep it in peak condition for a long time.

Is your car making a squealing noise? It might be a noisy idler pulley. Explore symptoms, causes, and solutions to address this common issue.

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Learn about car belts, discover wear signs, and decide between DIY or professional replacement. Find top-quality replacements at AutoZone.

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Timing belts are made of rubber and reinforced with other materials like Kevlar to add strength and stretch resistance. Some advantages of timing belts are:

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You might think that this is a terrible engineering decision, but interference engines are able to maximize efficiency and improve power delivery as a result of their risky engineering, so they’re here to stay.

Your timing belt or timing chain connects your crankshaft to your camshaft, or multiple camshafts, and conducts the intricate dance that plays out in your running engine, managing the input and output of air, fuel, and exhaust. A timing failure can catastrophically damage the engine, so read on to learn about how to maintain this important engine part.

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If you are wary of doing this slightly-complicated repair yourself, check AutoZone’s list of Preferred Shops in your area and rely on trusted professionals to make the repair.

Your timing chain or belt is connected to the crankshaft pulley at the bottom of the engine and to the camshaft pulley or pulleys at the top of the engine and is designed to turn the camshafts at a precise ratio, compared to the crankshaft, so that the dance goes off without a hitch.

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Be sure to consult your owner’s manual, a repair guide, an AutoZoner at a store near you, or a licensed, professional mechanic for vehicle-specific repair information. Refer to the service manual for specific diagnostic, repair and tool information for your particular vehicle. Always chock your wheels prior to lifting a vehicle. Always disconnect the negative battery cable before servicing an electrical application on the vehicle to protect its electrical circuits in the event that a wire is accidentally pierced or grounded. Use caution when working with automotive batteries. Sulfuric acid is caustic and can burn clothing and skin or cause blindness. Always wear gloves and safety glasses and other personal protection equipment, and work in a well-ventilated area. Should electrolyte get on your body or clothing, neutralize it immediately with a solution of baking soda and water. Do not wear ties or loose clothing when working on your vehicle.

Every manufacturer has a prescribed replacement interval for vehicles that use a timing belt, and you should honor that interval. Remember that a timing belt replacement may cost up to $1,000, but an engine timing failure can do much more damage and cost you several thousand dollars to repair.

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Cars are all put together by people just like you, and you can do all kinds of work on your vehicle as long as you take your time and follow repair guidelines precisely.

Every vehicle has either a timing belt or timing chain specified as the OEM part, and you should always replace your chain or belt with the equivalent part. All the pulleys and gear sets that make up the timing system in your car will be set up for either a chain or a belt and it’s not advisable, or even possible, to swap them out.

A modern four-stroke engine works on the cycle of ‘suck, squeeze, bang, blow’. It describes pulling in air to the cylinder, mixing it with fuel, compressing the mixture, introducing a spark that initiates combustion, and then releasing the exhaust out of the cylinder. All these actions have to happen in precise coordination for the engine to produce power and not blow itself up.

Timing belts do need to be replaced at a regular service interval, usually around 60,000 to 100,000 miles, and that cost can be extensive, since it requires the touch of an experienced mechanic. If you install a timing belt improperly it can severely damage the engine. Expect to pay between $100 and $400 for the parts and between $400 and $1,000 for the labor to replace your timing belt. Also, if your water pump runs off the timing belt then it can be wise to replace that at the same time, to avoid the extra cost down the road.