Youll notice this thanks to the loud running noise. A bad tensioner will usually be accompanied by noise. You can read more about our privacy policy and how we use cookies, Air Displacement by the teeth on the pulley, To solve this problem you can minimize the polygonal effect with continuous tooth engagement using belts such as, Reduce the belt width or used a lower tooth, For friction noises at lower RPMs we recommend that you minimize the coefficient of friction by using a nylon covering on the tooth side, which we refer to as a PAZ. In particular, a faulty timing belt will make a noticeable ticking or clicking sound that is very distinct from any other noise you can expect to hear from your engine. Necessary cookies are absolutely essential for the website to function properly. If the tensioner has no oil pressure, the belt will become loose and possibly disengage from the pulleys and/or break. Bottom line is that noises from cam belts are common and most likely nothing to worry about. Jun 16, 2012 #5. well I. Ticking or clicking noises in the engine. The noise sounds like strong wind from engine. (belt Hz) / (tick Hz) = (length ratio) 1 / 14. 3) Wrong Engine Oil. There's also a chance you might hear this when you're idling. These cookies will be stored in your browser only with your consent. Obviously I suspect the noise if coming from the new timing belt. 3 What does a timing belt noise sound like? I'm getting a "whining/whirring" noise when the engine is revved. This cookie is set by GDPR Cookie Consent plugin. By clicking Accept All, you consent to the use of ALL the cookies. When I changed mine, I had this "slap" that was so slight that it sounded like a buzzing noise because there wasn't enough tension. If your timing belt was "slipping" that bad to make so much noise your motor wouln't even run in the first place. D. 8-9k miles I started noticing a noise from behind the timing belt cover that sounded suspiciously like a timing belt idler bearing that had gone bad. Install the timing belt tensioner. Start the engine again and see if there is a noise. New tensioner reduce noise and prolong belt life since they compensate for the slack in a worn or stretched belt. If the belt slipped even one tooth your engine would run and idle like crap. I had replaced all of the bearings with brand new Gates components shortly after I purchased the van. When the timing belt wears out, it can cause a ticking or clicking sound to emanate from the engine. Labour and parts = $224.00 Canadian. Hopefully that was replaced as well. Could be waterpump bearing, as you removed tension from the belt, tension on the bearing went down and noise disappeared. Nothing to do with the brand of the water pump. Increases until your engine noise drowns it out. This is not a random slapping. A forum community dedicated to all Mitsubishi 3000GT and Dodge Stealth owners and enthusiasts. This type of timing belt noise will increase with belt speed. Despite the material utilized in manufacturing the timing belt, it is subject to wear out or break due to the incredible . If the noise is gone, its something on the outside of the T-belt. G. Katarovank. Timing belts can cost anything from $30 to $50 in components. Any thoughts? Youll find impact noise and friction noise are more common at lower belt speeds whereas air volume displacement is common at higher RPMs. 2 What noise will a belt make if the pulley is misaligned? Replace the idler and tensioner pulleys, water pump, thermostat, seals, etc if required. Passenger side. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". Timing belt noise is directly related to speed, width and pitch of the timing belt used. If there is noise, this is most definitely a timing belt sound, making it clear that the timing bad is wearing out. This website uses cookies to improve your experience while you navigate through the website. The cookies is used to store the user consent for the cookies in the category "Necessary". One of the first signs to look for is a ticking noise inside the engine. I always went back and reduced the tension to fix it. If sound is still there, try to take off the lower one as well. He doesn't have to do the entire job over. Symptoms of a bad timing belt. i replaced the timing belt on my car and it was making that noise and a mechanic told me it was to tight so i loosend it just a little and the noise went away. The magnitude of sound can range from a soft squeak to a loud and noisy squeal and it may occur while starting a cold engine or during normal vehicle operation. [thumbd] (BS). I brought it back about 3 months later with the same complaint. desolateboosted said: check the upper timing cover, sometimes they move and touches the belt causing loud whining. Of noise still persists after all belts are removed, it'll be internal. In the worst-case scenario, the belt can even snap. WHAT DOES A messed up timing belt sound like? [2] This noise could be some type of squealing or rattling coming from the timing cover area. If you need assistance in determining the cause and solution for our belt noise, please contact a BRECOflex applications engineer. Search Fixya . The dynamics of the belt reduces friction and the curved technology vents air toward the belt edges. Or was EVERYTHING changed? drive safe. 1) Wear and Tear. Thats just because it needs to be worked in a little. You can maximize air permeability which is especially helpful with high speed drives. Narrowing down where the noise is coming from helps in the diagnosis. Its just the belt breaking in. Friction between the belt and the pulley. We use cookies to give you the best user experience. 4 How do I know if my belt is misaligned? It changes if the rpm is raised, a/c is turned on or steering is turned. You'll hear the normal hum of any engine, but the timing belt itself should run entirely silently. If you hear something thats like a bit of a high-pitch whining sound, it may be a new tensioner giving you trouble. There are several symptoms of a bad timing belt. What is likely is that the timing belt will become loose and start producing a rattling sound. You can count the belt teeth separating them as a check. Youll hear the normal hum of any engine, but the timing belt itself should run entirely silently. This is what the serpentine belt rides over, which makes it squeeze your water pump to circulate water throughout your engine. kamrhee. This "singing" would be noticeable immediately and will change pitch with rpm's. I tracked it down to the serpentine belt and the tensioner, it's moving quite a bit. The tensioner also includes a pulley attached to it that turns the serpentine belt. The ended up replacing the timing belt tensioner and the timing belt. Start with eliminating the belt driven items. If the timing belt is insufficiently tense, there is a danger that it will ping off. The timing belt was just replaced a few days ago by a mechanic. 11. get a can of belt dressing from the auto part store and spray it on the belt with the engine running. You also have the option to opt-out of these cookies. Did that timing belt and now my power steering belt is making a good deal of noise, not squealing though. Every timing belt I've done has sounded like a mini super charger for a while, couple days up to a week or so depending on driving. It is readily heard in the cabin. That squealing sound can arise due to the constant friction due to motion. 6. Sounds like rocking horse manure to me. The tensioner is responsible for ensuring the belt remains with the correct . (under CPO warranty) My car is a 2006 2.0T with about 75,000 (km) so about 46K (miles). There was shredded belt material all over the inside of the timing belt cover. Check the tension of the pulley with the spring. Hi all, I recently had my timing belt done at 59,5XX miles. I hate to say it but I don't run the upper timing cover anymore because mine isn't in the best shape causing the movement. Tips: Remove the front cover. . Resonance is dependent on belt width. You'd have to remove the upper half of the timing belt cover to see if its really the belt rubbing against the cover. Lubricating the belt with an approved lubricant to reduce friction and noise. The time between ticks is (almost) perfectly uniform. Unfortunately I didn't have the garage space or the tools to further diagnose the issue so I had to take it to a shop. If the noise started after the new belt was installed then chances are the timing belt is too tight. If your engine is making a rattling noise, the first thing to suspect is low engine oil. Tensioner Type. timing belt noise just had a new timingblet put in .now it theres a high pitch whining noise when I start car for - Chrysler 2004 PT Cruiser question. But opting out of some of these cookies may affect your browsing experience. or a belt that is too long or worn out. so i drive for about an hour and i notice this strange noise, like a bad set of bearings. (after it has run round the tensioner) The sound is definitely nothing to do with the tensioner and is confined, very locally, to just where the teeth begin to mesh on the cam sprocket. If the bearings in the pulley are beginning to fail, they will make noise. Post Nov 25, 2011 #7 2011-11-25T12:02. Air volume displacement is caused when there is a space between the belt and the pulley. It is important to note that noise could be indicative of a bigger issue that could cause damage to your belt, pulley or drive over time. After replacing the timing chain the car started right up with no slapping sound, but now I have a ticking noise. Get the timing belt replaced. Resonance frequencies. I have put about 500 miles on the car since the belt was changed and the sound is still there. noise is hardly audiable when vehicle is idling, and easier to hear during low rpm, medium to higher engine load. Someone mentioned that the new belt might be too tight, so I took it back to the . It sounds like it could be coming from that head or the timing belt I guess, but I dont think the source of the noise is in the area of the timing belt tensioner. The timing belt is making a almost whistling sound from the drivers side timing belt inspection cover. Woodie. Most often it will occur when you're accelerating or braking. It does not store any personal data. If it is too tight, all of the bearings will be stressed, which is definitely also a bad thing. If there is a meshing differential between the belt and the pulley you will get friction noises. Whining noise after timing belt replacement is usually an indication the belt is too tight and can cause cam bearing damage. In engine bay, the noise can be clearly heard when the timing inspection/TDC plug (s) [front and/or rear] is removed. I'm planning to do the timing belt next month and will replace the serpentine belt and tensioner at the same time. Engine running using multiple smaller belts or by cutting air grooves on the side Out of some of these cookies need assistance in determining the cause and solution, please enable JavaScript your! Basic functionalities and security features of the bearings in the worst-case scenario the Two years belt & quot ; whining/whirring & quot ; slipping & quot ; slipping quot. 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