Sharp Engine rattle noise at startup Diagnose and fix engine rattle noise with P0011, P0014, P0016, or P0017. that is normal Every V6 that has multiple timing chains under the front cover make this noise. The tensioners will lose oil pressure over time while the car sits, a couple seconds of rattle till the oil pressure builds is normal. It may not display this or other websites correctly. JavaScript is disabled. I doubt it is a heat shield rattling as I had a similar issue on that front years ago on my Explorer that was remedied with a large hose clamp (well out of warranty then). Slide the actuator in at an angle so that the chain can slip over the actuators teeth. We can't say which type of connection is better but in recent years more and more manufacturers choose chains when they engineer a new engine. Now, my engine is five years older than this, so we know that the cam phaser rattle isnt a new issue. The 3.0T is actually based off the Audi 3.2 V6 with significant changes. Greetings. They aren't hard to do its just repetitive. This sound is particularly noticeable when you start the Frontier. Your email address will not be published. 2007 Hardbody, with about 100K on the engine. Taking all of that apart heads and all took me about 10 hours my first time. 27. Why does the chain rattle when cold? Carolina Stone is the founder and lead contributor of carolinasbmwmoa.org, a popular blog dedicated to all things about BMWs. I would hate to see how you function in daily life. For a better experience, please enable JavaScript in your browser before proceeding. The audio is from my 2012 sprinter engine start up at 90k, timing chain had stretched. I can hear it when my car sits for a few days vs just over night. +1 get a trained person with a stethoscope to listen for and identify the sound first. Phil OP gr_supra_lt First Name Martynas Joined Dec 5, 2021 Threads The 3.0-liter diesel engine this engine is used in the 5 Series and 7 Series models only. In the best case, you wont gain anything. Timing chain rattle, KA24E. A couple of things: So, what you need to do is to check the system and find out why the rattling sound appears. '07 - 3.6l SRX RWD, '16 - 2.5l Subaru Outback, '95 - 4.3l S10 pu. It does not store any personal data. 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. The engine star6ted having a rattle or knocking noise during warmup between 1500 to 2000 rpm. It's not really damaging nor much of an "issue", just an annoyance. The key thing is to not burn out your starter. Really hope I don't run into any headaches having them fix it. Plus I know someone else that just had their timing chains/tensioners replaced on their T3 TDI under warranty and it rattles . Some folks have described it as a chain rattle. Becomes increasingly noticeable, especially . Remove the five camshaft holders. __________________________________________________________________. Which BMW diesel engine is most reliable? Just thought I'd pass my experience on to others that may have the same issue. You may onto something here. It would rattle everytime I start the engine after it was sitting for about 1 hour or so. Up to 50% of turbocharger failures are due to oiling problems. Following adjustments, use a tappet locknut wrench to torque the locknuts. In my experience, 2-3 rotations of the engine were enough to pre-lube my phasers and end the cold start rattle. But we don't recommend this because we've seen some people having to deal with the consequences of this. I wonder if the noise would go away if the car was running a more robust 5W30 oil. The system of timing consists of a chain, some sprockets that hold and rotate this chain, a chain tensioner, often a water pump, and some bearings that help move the chain in the optimal direction. Try adding a liter of straight 50 or 60 weight oil and see if that helps. Trawling through the internet it seems likely it's the timing chain that's stretched. How many hours does it take to replace a timing chain? May 23, 2011. 38. Can , In V6 or V8 engines, the spark plug wires are on both sides of the engine. In fact, oil pressure helps to signal to the phasers when they need to adjust the timing for different performance conditions while driving. :lildevil: Very true I trust myself with doing these chains since I've done 9 since last October but its getting redundant that's too many just around ft. Secondary timing chains might produce a rattling sound during engine start up until the engine oil pressure builds up. I just bought this truck a few months ago, and it's driven by a friend. At cold start-up, the engine rattles loudly for about two seconds. Low oil level? Torque the bolts to 22 Nm (16 lb-ft). The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. If it breaks or jumps while driving, the pistons will be damaged from contact with the valves. My guess is it's one of the timing chain guides. The real issue is that the timing chain tensioners wear so quickly. In some cases the noise may be a normal characteristic of these . How ever I'm leaning towards the belt tensioner because the noise disappears when the engine warms up and it . 45. 0:00 / 4:21 ENGINE NOISE RATTLE COLD START OR ALL THE TIME. Still, we believe that you will want to get rid of the rattling noise because it's very annoying. 20. The system is not very complicated but it can fail, unfortunately. Well, here's why a timing chain makes a rattling noise: Unfortunately, nearly all modern engines will be severely damaged once the chain breaks or jumps. A bad tensioner will leave the chain loose and ready to jump a tooth or fall off all of the way. In 2018, she decided to combine her passion for BMWs by creating a blog specifically for BMW enthusiasts in the region. Many 0W16 oils have a new donut certification mark on the bottle called API SN-PLUS and SN-PLUS Resource Conserving. Unfortunately, any broken part in the timing chain system shows that nearly all parts are worn and can break anytime. To unlock a locked VTC actuator. You could try using a thicker oil like 10W40 to reduce the noise. We believe timing chains are a little better than belts because they usually start rattling long before they break or jump. In sequence, loosen the camshaft holder bolts two turns at a time. Do the Forester's make this noise or is it just the 15 Outbacks with the updated FB25? Apparently once the timing chain goes and the engine is rattling the whole engine is shot and needs to be replaced at a cost of $10,000 for parts . And since timing chains should be installed properly, consider bringing your car to a certified mechanic. WHAT CAUSES TIMING CHAIN ENGINE NOISE RATTLE Auto Repair Guys 735K subscribers 174K views 3 years ago ENGINE NOISE RATTLE. No CEL/MILs and the truck runs great. Just curious does anyone with this problem have a tune installed? A cold air intake works by moving the engines air filter away from the engine, so that . Align the hole in the lock and auto-tensioner, then insert a 1.2 mm (0.05 in) diameter stopper lock pin. Does your 5.7 do this? That doesnt sound good is normally what we say. that is the noise and listen to it in this link Streamable Video I know it's common to have the VVTI issue that cam gear intake is bad but some say it can be the timing chain tensioner and the stuff that holds the chain to run on. Before you install a DIY spring, I would recommend talking to your Ford dealership about TSB 20-2016 and seeing if they can implement a permanent fix for you. No. It was NOT the higher pitched rattle of the wastegates. Oil type and timing chain rattle on start-up. Recommended Services. Tighten them two turns at a time, starting in the middle and working your way outward, following the sequence. In most cases, you will find the defective unit and will just replace it without thousands of dollars in your bill from the shop. Just bought mine 2 weeks ago CPO with 7200 miles. There's no way to know if that's what your hearing, but it's something to look at. GM 2.0, 2.2 and 2.4 liter engines can make a sharp engine rattle noise at startup and set any of the following trouble codes on the vehicles listed below. Use a suitable tool with a rubber tip on the end. Unfortunately, timing chains are much more expensive than timing belts, but the good news is that they shouldn't be replaced very often. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. As we understand the problem, as the 3.5L EcoBoost engine ages, the timing belt and chain begin to loosen up and develop slack within their mechanisms. Since then, the rattle never returned but I have been having a pesky CEL P2293 code, indicating a high fuel pressure condition. You might try adjusting it. Hey! Jan 7, 2014. The sprockets of the crankshaft damage the timing chain, which affects the performance of the engine. Oct 15, 2017 I was able to diagnose my noise on cold start with a scanner. So, investing in such a vehicle is not always right. carolinasbmwmoa.org quickly gained a following, and Carolina now leads a team of contributors who share their experiences and knowledge about BMWs. The vehicle has had cold start rattle for a second or two since 50k mi. These kits run about $400 and take plenty of tinkering. agree, the short rattle sound at startup is mildly annoying. These cookies ensure basic functionalities and security features of the website, anonymously. Lower the camshaft VTC actuator assembly onto the journals. I'm actually about to do another timing chain job on another srx this weekend. He hooks a spring to the wastegate to stop it from rattling. over time, chains stretch a little and this provides them with the opportunity to be louder than they usually are; when a chain is stretched, it can hit the plastic shoe that is used to direct it in the timing system; also, the stretched chain will hit other parts of the engine including metal parts and this will sometimes create bad rattling; when the chain is cold, it can be OK, but after warming up, it may start rattling because after this it stretches even more; of course, the tensioner is there to help solve this problem and rattling can only occur when the tensioner is no longer capable of keeping the chain in optimal condition; when the chain is too stretched, it can just jump and change its position which will have bad consequences for the engine. We know some methods! I gave my VIN to my friend who is the engineer at GM Canada. Forum Software Specific Help. I want to know all of the problems. Just asking because mine does the same rattling at remote startup and I can hear it when outside the truck. Timing chain maybe? I did the chains myself back in October because the warranty wouldn't cover them due to the engine sludge from the previous owner. A bad timing chain will often emit a rattling sound for a few minutes before the engine warms up, and then will lower in intensity or . Apply compressed air to pressure port No. This can happen in 1 mile or in 20,000 miles. Rotate the crankshaft clockwise to TDC No. So, what exactly can you do to avoid investing a lot of money in the replacement? These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Rotate the crankshaft in the direction of engine rotation (clockwise) two full turns. Replace if needed. Starters are only designed to work in 3 to 5-second intervals. Do you hear a loud engine rattle that lasts about two seconds? Glake is right, and I don't know how one could go about checking that valve, it's also NOT available seperately, only comes with the whole housing. , traffic source, etc was sitting for about 1 hour or so a tappet locknut wrench to the., M5V 2H1, Canada you do to avoid investing a lot of money in the and... It was sitting for about two seconds pressure builds up do the Forester 's make this noise or it. Torque the bolts to 22 Nm ( 16 lb-ft ) how many hours does it take replace... Rattle isnt a new donut certification mark on the bottle called API SN-PLUS and SN-PLUS Resource Conserving really. ( 16 lb-ft ) but we do n't run into any headaches them. Certified mechanic the consequences of this a pesky CEL P2293 code, indicating a high fuel pressure condition about seconds... 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