There are many tool designs, but they all do the same task of pulling the belt over the leading edge of the crankshaft pulley without damaging the belt. The result is a more efficient and quieter belt drive. The primary cause of slipping is material being removed from the belt’s grooves, not belt stretching. I can see that it's a stretch. Slippage can be due to low belt tension, belt stretch, or the pulley and belt not working together. The compatible replacement part numbers for the primary serpentine accessory belt are as follows: ACDelco 6K396A , Dayco A060398 , and Gates K060396A . The serpentine belt, also known as the drive belt, is a belt on a car engine that works with the idler, tensioner, and pulleys inside the accessory drive belt system. A conventional serpentine belt is constructed with an inner core of aramid fiber cord, which helps prevent stretching, while stretch belts use polyamide tensile cords, which are engineered with a specific amount of elasticity, creating the stretch-fit feature that maintains proper tension once installed. Stretch belts usually don’t crack or wear as obviously as a conventional serpentine belt. The ac has nothing to do with the belt as it will be a low gas problem from leaks and the heat is a coolant problem or a control problem from inside the car.. Slide the tool clockwise around the flange of the pulley until the ramped flange on the tool is pressed against the side of the belt. Check serpentine belt wear Lay the wear gauge in the ribs on the belt and run your finger across them. The Theta II 2.4L GDI I4 engine is equipped with two belts including a main drive belt and a small self tensioning elastic "stretch" belt for the coolant pump (also known as the "water pump"). Over time, small debris and the interaction with the pulleys will wear the shoulders and valleys of the grooves. In vehicles outfitted with a serpentine belt, normal wear and tear can result in the belt stretching and losing tension. A serpentine belt problem is one of the more serious car problems. With the string tightly wrapped around the correct path of the serpentine belt according to the diagram in your owner's manual, mark the area on the string with a marker where it completely wraps around. Ford also uses stretch belts to turn the camshaft driven water pump on the 3.0 V6. Serpentine belts can be tricky to replace because of the way in which they are routed and because of limited access in a tight engine compartment. But stretching the belt with the right tools is often the only way stretch belts can be installed. This happens when the belt starts to slip. Because these belts look and feel similar to a conventional serpentine belt, it is important to identify these belts and to recommend the proper service procedures and installation tools, especially to your DIY customers. Open the hood and inspect the serpentine belt for wear and damage, and its tension. If the belt is in good condition, or has been replaced very recently, it may be possible to gently remove it, using a tool designed for this purpose. stretch belt … STEP 3 The Stretch Fit ® belt is placed around the pulleys. These belts have an elastic core that is designed to keep tension on the pulleys. In this video, I demonstrate how simple it is to change out a serpentine belt / accessory belt when you have the proper tool. Unlike the conventional serpentine belt, it has a synthetic rubber compound over an elastic core. Stay up to date with the latest Counterman news. I show you how to do it on my 2.4L Honda Accord. This belt has a huge and important role in the proper functioning of your car. Aftermarket belt manufacturers will add identifiers to their part numbering to indicate that the belt is a stretch-fit application, to prevent confusion between these belts and traditional serpentine belts of the same dimensions. Mike and Eric deal with a clearance issue because they couldn't be bothered take off the Jag's fan assembly. The Elite Stretch Belt incorporates low modulus and high elongation technologies that allow the belt to be installed on these fixed drive systems and provide the “self-tensioning” capabilities necessary to maintain proper belt tension in the absence of an automatic tensioner. The new materials used to make a stretch belt might crack or separate like older belts before the grooves are worn. Move the serpentine belt tensioner pulley off the belt using the belt tool. Explaining Water Pump Noises To Your Customers, Things To Consider When Choosing The Right Transmission Treatment For Your Customers. Less belt means less tension with fewer noise and vibration problems. A Ford Fiesta Serpentine Belt Replacement costs between $ and $ on average. • Always sell both belts together. Try spraying the belt with a little bit of water and note if the chirp goes away. In most cases, servicing these belts begins with the technician removing the original belt by cutting it off with diagonal cutters or a utility knife. If a belt starts slipping, the tensioner should always be checked to see if it is functioning properly. 1) remove the serpentine belt from the crankshaft pulley by using the 15mm socket to loosen the tensioner 2) remove the front skid plate (if equipped), held in by 4 15mm bolts 3) cut your old A/C stretch belt off 4) identify the 2 mounting holes on the bottom side of the A/C bracket, a little bit between the compressor and crankshaft pulley Belt gauges are available from manufacturers and distributors, so check their websites or ask your distributor. Never use a screwdriver or other sharp object to install the belt because if the belt is cut or the surface or grooves of the pulleys are damaged, the belt will eventually fail. However, sometimes the serpentine belt won’t have any immediate symptoms like squealing and chirping. • Some belt companies have phone apps that can measure and document belt wear. A conventional serpentine belt is constructed with an inner core of aramid fiber cord, which helps prevent stretching, while stretch belts use polyamide tensile cords, which are engineered with a specific amount of elasticity, creating the stretch-fit feature that maintains proper tension once installed. Poor alignment is the number one cause of belt noise and premature wear of stretch belts. Locate the serpentine belt auto tensioner pulley using the diagram. The auto tensioner and its pulley is a spring-loaded device that keeps the serpentine belt tight. Get a free detailed estimate for a repair in your area. So, time for a replacement. Climb under the front end with the serpentine belt tool. The tool will wedge into position between the belt and pulley at this stage. A fresh belt will probably last 150,000 miles without any maintenance at all. I ran into an issue where whenever I turned the A/C on in my Sienna, I would hear this loud squealing noise coming from under the hood. Special tools are available from various tool and belt manufacturers that act as a ramp on the leading edge of the pulley. Meet The 'Guess The Car' Champ: Roberto Bautista Sr. NGK Promotes Kent Howard To Senior Vice President, Advance Adds NGK Ignition Coils, NTK Technical Sensors, VIDEO: Schedule Your Virtual Meeting With Autologue, VIDEO: Battery Replacement Isn’t So Simple Anymore, MPA Video Troubleshoots No-Start Battery On Honda Civic Or CR-V, The Amalfe Doctrine: Momentum USA Marks 75 Years, Check the PCV Valve If You Suspect Oil Fouling, The Home Stretch: Stretch-Fit Serpentine Belts Are More Efficient, Quieter, View all videos in the Counterman Education Center, Questions You Should Start Asking Customers in the New Normal. Stretch belts are designed to stretch over one of the pulleys during installation, usually the crank or the largest pulley. This helps eliminate the noise and slippage often found in longer belt spans, and reduces the friction losses from contact with multiple pulleys found in many serpentine belt drives. The installation tool is attached over the outer lip of the largest pulley in the belt drive (or sometimes just the most accessible! This is why inspection is recommended — you cannot simply go by mileage recommendations. On smaller width stretch belts that are driven by the camshaft, like on some Ford and Mazda V6 water pump applications, you can use zip ties to install the belt. Eliminating the automatic tensioner assembly allows automotive engineers to design more compact accessory drives, and to reduce the number of components sharing the primary belt drive. Counterman Education Center presented by The Network, AWDA Advisory Council Announces New Officers And Members, First Brands Group Acquires Centric Parts, Engine Blocks Support Bottom End And Bottom Line, AASA's Paul McCarthy Receives Outstanding Leadership Award. I tried spraying some belt dressing on there, and that helped for several days, but after about a week the squealing came back. Embarrassing when you would start the car in a parking lot the ribbed side of the grooves critical! Construction that allows them to be self-tensioning by mileage recommendations late-model vehicle without an automatic with! Uses its own elastic properties to maintain tension pulley, like for the Subaru A/C compressor.. Me a Ford Fiesta, and Gates K060396A starting in 2000, carmakers. Bothered take off the tensioner and its pulley is rotated until the belt on back! 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