Oil to stop timing chain rattle. This should reduce the rattling noise.

Oil to stop timing chain rattle 0 crdi. What’s the likelihood it’s NOT sludge and just a bad chain or tensioner? Carfax shows original owner had oil changes between 5000-8900 miles except the first one back in 2021 at 13k miles. It ultimately turned out to be the cam phasers and underwent a month long repair at the Feb 21, 2022 · Rattling Engine noise? Noisy Tappets, Timing Chain or Engine Knock? Can Lucas Heavy Duty Oil Stabiliser Additive reduce Mechanical Noise in Your Car? Gidday from Sunny Queensland, Australia. If that chain snaps the timing might break everything. 17+’s can go 60k+ mi without issue after developing g the phaser rattle. In this article, we’ll cover the most common problems and how to fix each. Oct 29, 2019 · In this article, we’ll explore the most common reasons a Ford F150 engine may rattle and what you can do about it. Dec 17, 2009 · In addition to eliminating the start up rattle, the truck is also running much smoother, maybe partially related to a fresh taught timing chain but also I have a feeling my timing was not set right on 10 deg. Read More: How Can I Improve My Timing Chain Life? In conclusion, low oil levels can indeed cause timing chain noise. The TSB calls for a special tool that I did not end up using. Stretching, in turn, causes other problems. This should reduce the rattling noise. See the linked TSB PDF for the parts list. Mar 16, 2006 · timing chains on outside of engine, never heard anything so silly. Apr 25, 2011 · The tensioner needs oil pressure to push its plunger into the timing chain guide to remove the slack in the timing chain. If you're trying to reduce engine noise you need a thicker oil to create more of a cushion effect. Feb 14, 2022 · Some of my observations: - Hot weather seems to allow more frequent phaser rattle presumably because of thinner hot oil draining down easier. When the crankshaft turns from combustion, the timing chain moves the camshaft. I would say that it's about time to do the Timeing Chain/Tensioner's Replacement. Clean and sufficient oil is the key to getting maximum life from the timing system. There have been numerous tensioner revisions for ecotecs and the latest revision (since about 2009) finally Jul 7, 2014 · My 2L Gen Coupe turbo had the chain replaced at 100k. Oct 30, 2019 · In this article, we’ll explore the most common reasons a Volkswagen Passat engine may rattle and what you can do about it. Jan 30, 2007 · 20W-50 until a new timing kit is installed. Keep driving until the engine oil temperature reaches normal operating conditions. This happens when timing chains are forced to operate under low oil pressure conditions. I thought it was related to the oil type at first, but after trying 3 different types of oils and nothing changed, I started looking elsewhere. Oct 11, 2021 · 2009 - 2014 Ford F150 - Timing Chain Noise SOLVED! 4. Some users have found success using Amazon Basic synthetic 5w-20, while others recommend 5w-30 Pennzoil Syn or Pennzoil Ultra Platinum 5w30. Feb 27, 2025 · A failing timing chain can spell disaster for your car’s engine, but spotting the warning signs early can make all the difference. 2. Based on this theory I went ahead and ordered a new primary timing chain tensioner for $67 from the good folks at Courtesy Nissan in Richardson, TX. The chain was stretched and tensioner was not functioning properly and the guides worn. Once oil pressure is developed the engine runs normally. Jul 6, 2019 · Quick recap (see the above link if you want more detail) : I have the classic 2ar-fe rattle upon cold-start. May 4, 2022 · The VTC rattle is because the lock pin does not hold the mechanism together until the oil pressure builds. Which is the better to prevent timing chain stretch? Sep 20, 2011 · Timing chain issues are attributed mainly to lack of oil pressure at initial start up in the timing chain guides that add pressure to hold the chains in place. Several factors can lead to a rattling sound coming from the engine, ranging from exhaust issues to loose accessories or even timing chain problems. As it makes oil The 17+’s with the phaser rattle are literally just that, a rattle on startup due to a broken locking pin ONLY used on startup. Mar 2, 2023 · In my 2019 F150 3. As a Honda CR-V owner, you might experience engine rattle issues caused by two primary factors: the timing chain and the tensioner. I know some additives like Lucas Oil can help the oil stick around for longer after sitting, but are there any oils/brands that help for this? I'm thinking of putting 10w30 in general since it's thicker and should stay for Aug 27, 2019 · The startup clatter/rattle in 3. 5L EcoBoost cam phaser rattle issue and discuss how to fix the rattle problem. As these engines get older the timing chain components wear and Aug 28, 2018 · It has been 2 weeks now and no timing chain rattle on cold start up. Oct 8, 2022 · Hey guys. Mar 21, 2014 · Engine KA 24E ? If so it sound's like the Timeing Chain/Tensioner's. Or CVVT could be making the noise and not adjusting timing properly. In that case (and my case), that rattle is literally internal metal on metal. However, did you know that your timing chain will also need to be replaced and if it fails before Read More Do you know how to stop the timing chain noise, how to stop the rattling noise? Well, you are at the perfect place to find the answer to such a question. An engine oil additive basically improves the performance of your lubricants base oil. Chances are good you know that your engine oil, transmission fluid, and even brake fluid need to be changed periodically. If you got 215k on the original chain Aug 13, 2025 · 3. After those first couple of seconds the aggressive rattle stops, but will continue with a mild rattle off and on. We would like to show you a description here but the site won’t allow us. If it's dry start, what is recommended to help with dry starts(no oil at top of engine) Timing chain rattle is normally fixed by replacing chain, guides, and tensioner correct? Along with vvt stuff Sep 5, 2025 · Learn how to tell if your timing chain is stretched with clear symptoms, diagnostic steps, and expert tips for accurate repair or replacement decisions. Oct 29, 2019 · In this article, we’ll explore the most common reasons a Chevy Malibu engine may rattle and what you can do about it. Additionally, insufficient lubrication due to infrequent oil changes can exacerbate this problem, leading to timing chain stretch or wear. There is a rattle from the timing chain when cold starting, disappears after a second or 2 Aug 6, 2022 · Yup, that tick from the chain tensioner concerned me too. WHAT CAUSES TIMING CHAIN ENGINE NOISE RATTLE Oumore Oct 15, 2007 · Engine must be removed to do, and this is not a normal maint item like a timing belt. Yes the cam phasers or whatever have been issue and when/if you do the repair on the slack timing chain issue Ford is recommending to do all the phaser work as well at one time. However, later the engine developed a rattling noise while accelerating when the tach reads 1000-1200 RPM. The rest of the day it doesn’t make the noise anymore on startup. May 9, 2023 · Timing chain noise is commonly most noticeable during cold startup of the vehicle when oil pressure and oil flow is at its lowest. I just had one in my shop today (2002 Ford Explorer w/110K miles [build date 3-01]) with the timing chain rattle (sounds like pinging) between 2500-3500 rpm. I pulled off the intake manifold and valve cover and was surprised to see that the timing chain guide looked good and there wasn't any visible slack in the chain) the truck has 230,000 miles on it. Listen to the Noise Timing chains can accumulate enough wear in the chain’s links and guides to allow the chain to rattle against the timing case. Apr 25, 2023 · The timing chain tensioner keeps the timing chain taut, which is crucial for the engine’s proper operation. How can I get rid of timing chain rattle? Oil was just changed, minivan is an 04 quest. Oct 23, 2023 · Tow up a grade in hot weather, and you may experience severe pinging before it retards timing, and in some cases, it can't retard enough. Is your engine making a suspicious rattle? That subtle noise could be a ticking time bomb – your timing chain. Aug 10, 2015 · If temporary startup sound is timing chain rattle, usually tensioner is not holding oil pressure and pushing piston to keep chain taut when engine is at rest. 5 EB I’ve already had the dreaded start up rattle and had timing chain & cam phaser job done at approximately 100,000 miles. My driver Side tensioner I’m pretty sure it was the original one but was still in pretty good shape compared to a new updated version, what was causing my noise for me was a broken upper timing chain guide 10$ from the dealership but decided Oct 25, 2022 · A timing chain connects the crankshaft to the camshaft in a combustion engine. Timing Chain Issues The timing chain or belt keeps the engine’s camshaft and crankshaft in sync. Discover causes, fixes, and tips to prevent long-term damage and costly repairs. A particularly “tinny” sound might indicate a broken timing chain guide. Dec 2, 2023 · Low oil can cause a timing chain to break because it leads to serious component wear and eventual catastrophic failure. All you need is to give the engine a few cranks in order to get some oil into the cam phasers before starting the engine. I am finding that this seems to have increased timing chain noise once the engine has run at full operating temp. I have heard of oil pump drives breaking in extreme cold with thick oil. Jun 5, 2003 · My sisters 2005 Explorer 4. Apr 5, 2025 · Hi I see lots of comments about oil additive. Connect Your Scan Tool Dec 2, 2023 · Low oil can cause a timing chain to break because it leads to serious component wear and eventual catastrophic failure. I am 90% sure it was the common timing chain not getting oil pressure at start up issue. Prior, the only time I would ever hear rattle was that first start right after an oil change (dry If you have rattling chain noise you should immediately get your timing chain replaced instead of running it with thicker coil to quiet it down. This is a serious indication of timing chain problems and should be addressed immediately. There is no rattle during engine warmup. In this video, we’re going real-time, under the hood, to show you exactly how to Feb 14, 2022 · Some of my observations: - Hot weather seems to allow more frequent phaser rattle presumably because of thinner hot oil draining down easier. Thick oil makes more resistantance on the pump thus strains everything mentioned above. 0L sites over night. There is a design defect in the factory part not allowing enough oil to get into the gear during start up, causing the death rattle sound. Before we get stuck in – if you’re a newbie to mechanics, check out our past article to learn more about what a timing chain actually is Jul 18, 2024 · If a timing chain is severely worn or has experienced catastrophic failure, it can lead to the production of metal shavings within the oil pan. Yes, I'm talking about the timing chain rattle which occurs for 1-2 seconds after a cold start for which the general consensus is that it's normal because the system is hydraulic and it needs time to build oil pressure. Isn't the newer GF6 oil meant to address timing chain wear? Feb 25, 2019 · My 2006 Colorado has timing chain rattle at startup for just a few seconds then it's fine. The explanation from Infiniti is the oil is not pumping into the area with the timing chain guides/tensioners fast enough on a start, hence the brief noise on a cold start and not any other time. May 23, 2024 · I have been experiencing the timing chain rattle at start up as well. The guides can eventually break leaving debris at the bottom of the oil pan. Many things contribute to the efficiency of an engine, and timing is one of the most important. 6 days ago · Engine rattling noise in your Mercedes? Spot timing‑chain, heat‑shield, or mount issues fast and follow step‑by‑step checks to silence the rattle for good. This is wrong. Apr 19, 2022 · Engine timing is one of the most critical yet poorly understood elements of maintaining a vehicle. Further, the additive changes the oil and it slows the burn. At 215k it should be getting at least its second replacement timing chain. If the problem continues then diagnose and replace the timing chain. I had two mechanics tell me it was timing chain rattle. If your timing chain starts to rattle. Doubt that’s their point though. Timing Chain Issue In some cases, the timing chain on your Honda CR-V could Jul 30, 2023 · The timing chain rattle is caused by slack in the timing chains on startup when the engine oil pressure still has to build up. May 20, 2023 · Why does engine rattle when idle or accelerating? In this article, I will explain the most common reasons for rattling and also will give remedies for these reasons for DIY inspection and repair. Apr 17, 2013 · A thicker oil will indeed cover up the slight rattle of the chain slapping the guides but the slack is still there and the damage is done if you are hearing noise from the timing chain. Nov 18, 2020 · Crank turns camshaft via timing chain, cam has gear that operates distributor, distributor spins oil pump via a shaft. They usually wear out at 60-110k. Cold srart clatter, clanking, rattle: It's not the chain tensioner or the timing chain at all. Sounds like it could be the timing chain Apr 27, 2021 · Following the completion of a successful timing chain system repair, the best thing you can do for your customers’ new timing system and engine is to maintain it with clean, high-quality oil. We replaced everything you might want to replace while in there, even the sprockets. Here are the 8 best oil additives on the market today Mar 17, 2017 · Timing chain problems When an owner neglects oil changes or uses the wrong oil, the timing chain pins wear, causing the chain to stretch. Jun 22, 2021 · On a cold start, there is a very faint timing chain rattle on the drivers side still. May 22, 2023 · I have a 2010 A6 3. This cost me about $300 to do using all OEM parts. I used Mobil 1 0w40 for most of those miles changed at 5k miles. Oct 30, 2019 · In this article, we’ll explore the most common reasons a Mitsubishi Outlander engine may rattle and what you can do about it. This noise is caused by the chain becoming loose or worn. Aug 28, 2025 · While a failing timing chain necessitates a proper mechanical repair, are there any oil treatments or specific oils that can temporarily mitigate or even reduce the severity of this rattle? Let's delve into this common automotive concern. Manufactures are going with lighter chains for fuel economy. I started the motor with the serpentine belt off and it still made the noise. Jan 31, 2020 · ENGINE NOISE RATTLE COLD START OR ALL THE TIME. Feb 28, 2024 · Debris found in dirty oil can clog those oil ports, leaving the tensioner unable to apply pressure to the timing chain resulting in too much slack (chain whip), or timing system instability. Mar 8, 2023 · Hi all new to the forum. oil pressure: No, don't think so, since I THINK most timing chains run partly immersed in the sump and so are splash/oil bath lubricated. A worn timing gear certainly can add to excessive timing chain slack and should be replaced if found to be worn. Oil dilution is an issue and they also upgraded the chain by shifting the stack order on the chain. I sure as hell ain’t changing those tensioners again, what a nightmare of a job. Oct 1, 2022 · This allows the chains to rattle, and the repetitive rattling wears away the plastic lining on the chain guides causing further chain slop. The timing chain is essential for synchronizing the engine's components, and any slack or wear could result in a noticeable clatter as the vehicle starts. Be aware that this is not going to fix or quiet engine parts that are badly worn out. The lack of proper lubrication can lead to increased friction and wear on the timing chain, resulting in a rattling or clanking noise. . Not enough plunger force = too much slack = chain rattling against the housing. A faulty tensioner can cause the timing chain to become loose and make rattling noises. This started Nov 6, 2023 · The most common Hyundai Genesis 3. Valve Train Problems Aug 14, 2015 · The 2nd part to this story is the timing chain rattle I've been noticing for the last year on my truck. Apr 17, 2003 · Now I'm not no oil expert by any stretch of the imagination, but it seems to me that if you want to put an oil BARRIER between the timing chains and their mating chain guides so that they don't come in contact with each other so easily causing that rattling noise, you might stand a better chance of keeping them separated with a THICKER oil. - Rattle will stop with fresh oil for awhile until it dilutes with gas and thins out. This leads me to believe I am having a stretched timing chain / failing tensioner warning. If it's dry start, what is recommended to help with dry starts(no oil at top of engine) Timing chain rattle is normally fixed by replacing chain, guides, and tensioner correct? Along with vvt stuff Nov 24, 2023 · The timing chain in your engine supplies a direct connection between the crankshaft and camshaft. The timing chain tensioners, there are 2, are then gradually extended to take up the slack in either chain. Stretched timing chain symptoms • Noise. Unless you have over 250k on odometer or have not changed the oil every 5,000-7,000 miles, the noise you hear is from the VVT valve timing system Nov 9, 2008 · When this happens you can hear a loud rattle and the engine shakes violently because the valves are out of timing. Aug 14, 2019 · First, thanks to all those who furthered my knowledge here on different things regarding oil. Oct 29, 2019 · Timing Chain and Tensioner Problems The sound should come from the front of the engine, it’s usually most noticable at start up and low RPM’s. It's not the rattling itself that's causing damage, so even if you 'prime' it before starting to avoid the rattle, the in-use delayed reaction to timing retard is still present. A few months back my engine was a complete mess with a horrible cold start rattle and diesel like sound. Today Jan 30, 2022 · A question I have is if the faulty tensioner could also be related to the oil pressure light flickering onwhen it goes bad, does it basically create a big internal oil leak? The failure sounds like it is related to internal wear in the part, which allows too much oil to flow through and not generate sufficient force on the timing chain. Recently purchased a 2014 2. People think that the chain will last for ever, but they are prone to strechin. Jul 17, 2024 · One question that often arises is whether using thicker oil can help stop timing chain noise. Engine Is Not Starting Ultimately, a bad timing chain can lead to an engine that fails to start altogether. It is often referred to as "timing chain noise". May 18, 2009 · Timing chain guide rattle are a very common problem on the KA's. If the timing chain is faulty, it makes a metallic rattling sound. Aug 24, 2022 · How To Stop The Cold Start Rattle By Depressing The Gas Pedal The solution is fairly simple: hold the gas pedal down for 2-3 revolutions of the engine when starting on your initial start-up. If you are getting the noise while the engine is running and not just for a half second on a cold start, it isn't a VTC rattle. It ultimately turned out to be the cam phasers and underwent a month long repair at the Apr 1, 2022 · More or less, oil needs to get forced back up there. 8 engine problems are carbon buildup, various oil leaks, timing chain rattle, and excessive valve ticking. * Not long after a major service, I had this loud rattling on start-up, after standing for 3 or more days - it begins immediately on turning the key and only lasts for a second then goes quiet. 6L - Hi All, My intention is to help those who have heard a noise from their engine in what seems to be coming from the timing chain housing. I'm pleased to say I have almost eliminated the rattle using Lucas Oil Stabilizer. Theres 2 guides above the crank (1 long and 1 short) one on the left and one on the right. com Jul 30, 2025 · Prevent engine failure with AMSOIL synthetic motor oil. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel and tire combinations and model specific details not found anywhere else. Its lubicated by an oil spray bar and has an oil filled tensioner. The engine rattling problem is more prevalent during cold conditions, especially during cold starts. from the 1st spark plug (#1 spark plug was sooted up when compared to the others). I have run Mobile1 Synthetic in I changed the oil the same day I personally replaced the serpentine belt along with the tensioner and idler pulley, which was making a slight noise. Cool Also most people replace the timing chain set (chain, guides, tensioners etc) to get rid of this sound. 5L EcoBoost, it’s best practice to use a good synthetic oil, like AMSOIL synthetic motor oil, and a quality oil filter to help fight soot-induced timing-chain Oct 5, 2015 · Just curious, but any of you guys with the timing chain rattle have a real dipstick? After my yearly oil change in May, I started noticing the dreaded rattle on cold start happening about 50% of the time for the first time ever (car is a 2013 with 21k miles that I've owned for the past 7 years). I’m at 185,000 miles now and the start up rattle fix has been the only major work I’ve had to do on this truck. I gave it a few slight revs to listen to the lifters and I noticed for the first half second after opening the throttle there was the distinctive buzzy rattle coming from the front where the timing chain is. Man, I hope the rockers last another 86,000+ miles now. May 6, 2025 · Dealing with engine knock or noisy lifters? Before you start replacing parts, try an oil additive. Aug 6, 2010 · I had the rattle noise at cold start up for 4-5 seconds. Don't have that, thus I don't have this issue. Feb 6, 2023 · Use luca oil stabilizer in gear oil to stop leaks, reduce operating temperatures and increase the life of the gear oil. If I just sit there and do nothing or even gently Oct 18, 2018 · It has been recommended to me by an old school mechanic, (familiar with 2TG engines), to use your 15W-40 mineral oil, plus 150ml of Liqui Moly. Its a timing chain tensioner issue. Jul 11, 2023 · In this article, we take a look at the infamous 3. If you are facing the engine from the passenger side, it will be the rail on the left that breaks at the top and Oct 29, 2019 · In this article, we’ll explore the most common reasons a Ford Escape engine may rattle and what you can do about it. The excess slack can cause a rattling sound or even a clanking sound if Feb 12, 2014 · I just checked my oil now and then started the engine. I normally hear a rattle in about 10-20% of my startups. If it becomes loose or worn, it can create a rattling sound, often described as a metallic noise. The following morning in colder days on startup makes a ticky grinding noise shortly and then goes away right away. With the gas pedal Mar 21, 2017 · In most cases, a complete engine replacement is the recommended repair. I have no idea what oil has been used in the past. This started Oct 8, 2022 · Hey guys. Feb 21, 2003 · With the the two paths of moly additives (MOS2 Vs MoTDC). Apr 23, 2023 · Firstly, some rattle at cold startup is normal and it could be either the timing chain (typically because the hydraulic chain tensioner isn't tightening the chain properly until the oil pressure builds up), or the hydraulic tappets (they will rattle until the oil pressure builds up). If you are facing the engine from the passenger side, it will be the rail on the left that breaks at the top and May 12, 2025 · Learn why your car makes an engine rattling noise on cold start. With the gas pedal Oct 11, 2021 · 2009 - 2014 Ford F150 - Timing Chain Noise SOLVED! 4. Learn how to avoid timing chain wear with real-world data and test-backed protection. Mar 5, 2013 · The best way to describe it is a rattle or knocking noise. There is a short rattle from the front of the engine when the engine starts, but I can't honestly say that the rattle appeared after the work was done. Since this happened after The Professional's that you appointed to Change the Oil/Filter on Your Truck,, I would Tend to Guess that You had an Oil Starvation Incident performed on Your Truck Engine. It might even eliminate the rattle permanently. If you are lucky, you will hear the rattle and get it repaired before it jumps a tooth and causes real damage. The rattle and shaking usually stop after a second or two, but sometimes you have to turn the engine off and restart it. Cold start timing chain rattle? After my 2008 4. Is the timing chain a double row or single? Depending on type there could be an upper chain guide as well cant tell by the video. See full list on cararac. I had my mechanic replace the timing chain, tensioner, guides, etc. The Hyundai Genesis 3. Poor OCI add to this problem as the oil breaks down and doesn't pressurize in the guide as well/as quick. There are screenshots on here of people's local estimates and invoices if you search around. Usually, the problem is caused by bad timing tensioner, low engine oil, stretched timing chain, worn water pump and worn or broken timing guide. 0T that is a great performer other than the cold start timing chain rattle, with a twist The Symptoms: On cold start, the chain will rattle for a couple of seconds at startup which I understand is 'normal'. I asked I'm getting the famous timing chain/sprocket rattle on cold start which I read can be caused by low oil pressure on start-up from all the oil draining down to the bottom. This is a critical issue that can lead to severe engine damage if not addressed promptly. Some have thought it was oil filter related. From my research on this thread, when someone goes in to fix the startup rattle, it is quite a bit more than just the chain. 8 liter Lambda II RS V6 engine appears in many vehicles in the Hyundai lineup. The timing chain runs inside the engine. It only happens on cold starts in the morning. Apr 13, 2013 · Originally Posted By: gregk24 , regarding timing chains, will oil pressure oil thickness, or even add pack (oil with high anti wear additives) contribute to longer chain life. What does a bad timing chain sound like? A bad timing chain can produce a rattling, whining, or clanking noise, especially when the engine is idling or accelerating. Sep 6, 2019 · I've heard the cold timing chain rattle 3 or 4 times in the life of the vehicle for about 1 second each time after cold soak on very cold nights. Jun 5, 2003 · Why gf-6 is so challenging, the answer for timing chain wear goes against what the gov't is doing with fuel economy. Jul 19, 2019 · This update relates to ALL engines from 1995 to today. If you drive a T-GDI engine that’s known to suffer from timing chain stretch, like the 3. 3. (Not sure if that’s accurate but it’s what on the report). I added valve medic engine cleaner and the noise went away!!!! Jul 19, 2019 · I have the rattle on start-up after 3 or more days standing. Mar 7, 2018 · To do the upper timing tensioner all you need is triple squares, camshaft locking tool, crankshaft locking pin, breaker bar, cam sprocket holding tools. 0 V6 has that terrible chain rattle (with only 30k miles on it). Feb 21, 2022 · Rattling Engine noise? Noisy Tappets, Timing Chain or Engine Knock? Can Lucas Heavy Duty Oil Stabiliser Additive reduce Mechanical Noise in Your Car? Gidday from Sunny Queensland, Australia. Apr 16, 2010 · I've heard timing chain rattle is common, and being that chain replacement might involve removing the engine, I looked for better alternatives. Nov 9, 2005 · I have found that using one bottle of STP oil treatment with my oil change will eliminate 90% of the timing chain rattle that has plagued my engine. When the tensioner carn't take up anymore slackness, the chain becomes noisy and will need replacing. In this video I show you how to fix a timing chain tensioner leak and a timing chain rattle. Dec 18, 2014 · Not trying to start a thread on oil brands, just an data point for those suffering and a call out for technical input. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm 6 days ago · Engine rattling noise in your Mercedes? Spot timing‑chain, heat‑shield, or mount issues fast and follow step‑by‑step checks to silence the rattle for good. I installed new tensioners, installed correctly and the noise is relatively quiet and goes away once I start driving the truck. 4. This is because the engine oil pressure is low. 99% of starts, I hear nothing, except the normal noises. Then lift your foot off the gas and start the car normally. I have experienced what sounds like timing chain slap against the housing under low RPM and under load. It used to only be audible on a cold startup, but now you can hear it all the time so who knows how much longer this thing has. Factors to Consider When Choosing Engine Oil Additives As you buy engine oil additives remember to check on a few factors such as; Viscosity Ingredients miles per gallon (MPG Jul 16, 2019 · This DIY will replace the intake VVT-i gear on 2AR-FE equipped Rav-4s and other Toyota models. A good additive will make it quieter for a bit. A loose timing chain will most likely still make noise no matter what kind of oil you use, because it's not cushioned by oil pressure. Dec 22, 2017 · If a Honda, including the 2008-2012 Accord, 2012-2013 CR-V, and 2012-2013 Crosstour, has a pronounced rattling noise emanating from the engine during cold start-up, persisting for approximately two seconds, then this symptom is typically indicative of a defective Variable Valve Timing Control (VTC) actuator, as outlined in Technical Service Bulletin (TSB) 09-010. Timing chain noise is most noticeable on cold startup when oil pressure and flow is at its lowest. 6L engines can be addressed by switching to a different synthetic oil. oil thickness: Yes, probably. In this article, we’ll explore this topic in depth and provide you with the information you need to address this problem effectively. Let’s explore these problems in detail. Has anyone else had the same results? Also, does anyone know why this timing chain rattle is much worse when the engine in cold? In the Jul 23, 2025 · Frequently Asked Questions 1. Jul 19, 2011 · There is a thread on the forum regarding a "brief rattle noise on startup " on ecotec engines. Aug 3, 2020 · All three oils guard against timing-chain wear in modern T-GDI engines to help prevent timing chain stretch and keep your engine running strong. This could be due to wear and tear, damage, low or old oil, or a faulty oil filter. Oct 5, 2012 · I went thru hell and back but just wanted to let everyone know that the rattle noise I have been tracking down for two years now has been whittled down to the timing chain guides. Sep 19, 2024 · Pretty sure it’s timing chain (it’s back at the dealership). Jan 23, 2022 · Doesn't usually happen on warmer days, but I have a timing chain rattle or maybe dry start. This is pertinent for short trip drivers especially. Excess slack in the timing chain can cause a rattling sound or even a clanking sound if the slack is severe enough to cause the chain to contact the timing chain cover. Apr 5, 2012 · Bimmerforums is the preferred online BMW Forum and community for BMW owners. Just maybe the answer is base oil. I usually take extra care to pay attention to the startup noise so I can get an idea of how frequent it is. Understanding The Relationship Between Low Oil And Timing Chain Breakage Understanding the Relationship Between Low Oil and Timing Chain Breakage Engine At a point of time, the chain guide loses the ability of the hydraulic tensioner to take up the slack and, then the rattling of the timing chain begins. How long can I drive with a bad timing chain? Jul 23, 2023 · This raises an important question – can changing your oil help extend the life of your timing chain? In this article, we’ll examine how oil lubricates the timing chain, look at the potential effects of oil degradation, and see if regular oil changes can help prevent timing chain problems. Today Jul 18, 2024 · In such cases, replacing the timing chain may be necessary to resolve the noise problem. It is an important component that allows the valves in the engine to open and shut for intake and exhaust. I thought it would be worth it to try switching to a good synthetic oil and see if that helps. Jul 3, 2022 · The solution to a noisy engine is to buy the best engine oil additive for noise. Jul 30, 2023 · The timing chain rattle is caused by slack in the timing chains on startup when the engine oil pressure still has to build up. tlgx nnxabzip sfxho mfhtsuiiy qemvl dsllyc eusrh rzwo yxuwjbq qpponr njltc ixclw uqxzkccr wrdj owdxo