If you hear the telltale engine knock or your oil pressure light is flickering, you should check the engine as soon as possible. I am NOT a mechanic so be. NOTE: Never add oil to the gasoline for a four-stroke engine (see Checking & Changing Oil). The oil will hold compression for several turns of the engine. If the engine is knocking, the bearings are probably bad now anyhow. Check the oil to see that it's at the proper level (not low nor overfilled). April 2011 fix it right the first time update hope this helps owners with pinging/engine knock problems Model Year 2010 Equinox,Terrain Vehicle Line / Condition Detonation, spark knock and/or a rattle noise on light acceleration 1500 to 1900 rpm Reference Information / Bulletin Number Install latest ECM calibration PI0325. If the connecting rod binds or jams, it can break away from the crankshaft, known as a thrown rod. I have issue that Hyundai recalled the sonata and santa fe of the same year and also kia recalled the sportage for engine knocking. If spacing is to much on crank between main cap crank and or rod to crank, it can cause low oil pressure. Using a scan tool, perform High Pressure Fuel System Test to check system for leaks. The engine was indeed low on oil. 1 Test Engine with Replaced Oil". 3L, 4 banger has a slight knocking sound. It’s because the oil is thinner and doesn’t coat parts as well. Is Your Engine Rod Knocking? What Is a Connecting Rod Fix? A rod knock repair cost has a number of variables:. I would hate to say it is OK and have your engine run into a problem. What does this code mean anyway? The definition for this this P0171 code is Fuel Trim System Lean (Bank 1). The time, however, spent determining whether it is or not is a big problem for customers. If my car ran low on oil and now there is a knocking sound what may be the cause - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. IF your knocking is a result of an oil issue, it is that your car is very low on oil and you should add oil IMMEDIATELY to avoid serious damage. This is brought on by extreme bearing wear or damage. Abnormal combustion, more commonly known as knock or detonation, has been the limiting factor in internal combustion engine power generation since the discovery of the otto cycle itself. 0l it should work just fine, in all honesty we have never installed one as we would just fix your engine or order a shortblock, heads etc. Low Oil Pressure - Many times when a bearing is beginning to fail (or has failed), you will noticed signs of decreased oil pressure. If you encounter an acura engine knocking noise, this may be your fix. The only other answer is the engine clearances. At first I thought it was comin from the top but when i get under it it's alot louder sounds like its comin from the oil pan. It’s because the oil is thinner and doesn’t coat parts as well. DIAGNOSE – ENGINE PINGS OR KNOCKS ON ACCELERATION. Then, crank the engine for several revolutions to work the oil down past the rings. Fortunately, draining the engine oil and replacing it solved the problem on both cars('90 Dodge Spirit and '96 Plymouth Neon). The day after the oil was changed the sound slowly went away while driving nearly the whole day. Maybe some of this will help you trouble shoot your engine oil pressure issues. If the engine is burning oil, the valve guides and seals are most likely worn, but the rings and cylinders might be bad, too. that protects your engine from harmful detonation! should that sensor be bad and your engine detonate, the computer will not pull timing to prevent said detonation and it will destroy your engine. The engine is not under any load at idle speed. no engine oil light has come on to notify me of low oil issues. What Does Code P0523 Mean? OBD II fault code P0523 is a generic code that is defined as "Engine oil pressure sensor/switch -high voltage", and is set when the PCM (Powertrain Control Module) detects either an actual low oil pressure condition, or a high voltage in the oil pressure switch and/or its control circuit. To me, either they would totally forget to install ANY oil at all…which happens, but the engine would have died in just a few miles and it would have been making a loud knocking noise as you left the repair shop AND the low oil light would have been on etc. Run-on by dieseling is caused by fuel in engine igniting without spark. it started at 92,000 miles. The engine is meant to function smoothly, transitioning from one point of the four-stroke cycle to another. We recommend Torque Pro. Sounds like piston. I notice every so often on start up a noise like the oil pressure is low and the lifters are knocking, it last about 40 seconds or so even on warm mornings. If the engine is knocking, the bearings are probably bad now anyhow. If the ticking sound is present with new. Then you add the Subaru oil consumption problem on top of the manufacturers recommended extended oil changed intervals where the oil is already broken down after 3K you have a oil consumption problem where you can damaged the engine from running it low. The only time it doesn't knock is when you coast down hill (no gas). Many consumers suffering from piston slap report that the knocking is constant, lasting well beyond the initial start-up, and appears regardless of the temperature. A clicking or tapping noise that gets louder when you rev the engine is probably "tappet" or upper valvetrain noise caused by one of several things: low oil pressure, excessive valve lash, or worn or damaged parts. Each of the engine knock causes on the previous page has a specific cure, and most of these fixes are simple. I am wondering about using a heavier grade of oil and/or an additive to try to quiet this down. 8L engine and I am having oil pressure problems that only occur at normal operating engine temperatures. When an engine is old, it will burn more oil. Diesel engine knocking after low oil. At idle I don't hear anything abnormal, but at any time above 2500 rpm I get a ticking / knocking noise coming from the engine that gets louder the higher the RPMs. 1 Test Engine with Replaced Oil. You may only have clues and hunches about the cause, but the only way to know for sure is to carefully inspect every possible solution until the truth is revealed. It wont repair leaky oil seals, broken piston rings though. I loved the car period. In it, I concluded that the best thing you can do for your lifters is to use an oil additive. So I filled the oil. Maybe some of this will help you trouble shoot your engine oil pressure issues. 4 Faulty Oil Pressure Gauge Sensor. Sometimes some types of engine knock can be repaired with the engine in the car. A1 — Engine Repair Multiple Choice: Engine ping (spark knock or detonation) can be caused by _____. To see how frequently Hyundai Elantra problems occur, check out our car reliability stats. Wipe it clean with an old rag, place it back in then pull it out to read it. Low oil pressure. Can anyone give me some advice. The symptoms of a piston failure can include engine noise (rattling or knocking noises while the engine is idling), oil burning, misfiring and loss of power. As such, the pump does not often need repairs or servicing, but when it does. If you hear a low rumble or knocking noise when the engine is warm, the most likely cause may be a bad rod bearing on the crankshaft (which may lead to bearing failure and/or rod breakage or crankshaft damage). I went into detail about what causes the ticking or knocking noise in your engine and how you can fix it in a previous article. It's a 2012 and keeping up with oil changes and tender loving care. around 50k I started to hear a clicking/ knocking noise from the engine. If you have low oil pressure I would be more concerned about excessive clearances and worn parts. Would this be just an upper end repair. It is a 96' Taurus LX with the 3. If the engine is emitting white or blue smoke, this means your engine is burning oil. If you encounter an acura engine knocking noise, this may be your fix. It provides a hand hole for access during certain engine repair jobs. the rebuild will fix this. Engine Knock. 5 Rocker Arm Shaft Plugs Missing (New or Rebuilt Engines Only) 2. Whats making the knocking noise?. Check out the three most common causes of engine knock: 1. Its not a go anywhere 4x4 as it doesnt have a low ratio gearbox as some of its bigger brothers the Defenders and Range Rovers. Many SUBARU engines came from the factory with a plastic oil separator plate. Fortunately, draining the engine oil and replacing it solved the problem on both cars('90 Dodge Spirit and '96 Plymouth Neon). Over 95% of replaced oil pumps did not need to be changed and rarely wear out. A bad oil pump, worn engine or low oil level can cause this or other engine noises. Chevrolet Silverado 2007-2013: Why is My Oil Pressure Low? Troubleshooting low oil pressure requires you to think and act like a detective. How can i check this with out pulling the complete engine? Knock in Diesel Engine Mobil 1 Diesel 5W-40 Engine Oil. Reader Question. Fortunately, draining the engine oil and replacing it solved the problem on both cars('90 Dodge Spirit and '96 Plymouth Neon). Knocking is not fixed by switching to synthetic oil. Despite their fabulosity, EJ motors aren’t perfect and have some problems, so let’s discuss them. This also creates the common "pinging" noise that is often described when knock is present. Restoration of restricted oil passages, depending on the severity, could save the engine from the junkyard. (inside of vvti engine) vvt-i= Variable Valve Timing-intelligent. Checking the oil level. Engine will make a knocking noise if it is really low on oil. Then, crank the engine for several revolutions to work the oil down past the rings. It can also mean that an engine part, such as a valve is wearing out. (usually caused by carbon build up inside the combustion chambers) Over heating of the engine or just an individual cylinder. Below are the symptoms of having a. ) compressor assembly. When I first start it up in the morning, it runs fine and sounds fine, but once the engine warms up, the oil pressure drops drastically at idle and makes a sort of knocking sound that will sometimes fade out a bit at 2000 RPMs but is pretty aggressive. I am NOT a mechanic so be. If you determine the engine oil is more than one quart low, the oil viscosity is wrong, or the oil is in poor condition change the oil and filter. When necessary, it uses this information to delay the spark and to minimize knocking or pinging. 2 Head gasket leaking or cracked head around engine oil pressure port Repair or replace as necessary. The terms valve clatter, pinging, pre-ignition and detonation describe the strange rattle or knock coming from an engine. 4AGE Oil system The 4AGE oil system is excellent, and gives little trouble. Ford included all the latest technologies into the 4. Each term describes a slightly different condition, but the result is usually the same with each, engine damage. It appears that the oil is being burned by the engine because of the smoke in the exhaust. In fact, other things can influence oil pressure including engine bearings that have become worn out. The 3 Most Common Engine Problems >> Engine knock can be caused by many things, however, some of the most common are as follows: The fuel in your car has too low of an octane rating. Quick Tip Repairing or replacing a seized engine can be extremely expensive, it can cost you around USD 10,000. Check the pump pickup for blockage. The 2010 Chevrolet Silverado has 13 problems reported for excessive oil consumption. I was pleasantly surprised. To see how frequently Hyundai Elantra problems occur, check out our car reliability stats. Also be careful because a rod tearing through the side of the engine block could also result in a serious engine fire, i. I mean you could probably keep running it at lower pressures but doing so indicates you have wide bearing clearances and I don't see the point of running stuff till it totally dies. It's when the gasoline in a cylinder detonates before it's supposed to. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. The salesman said change the oil every 15,000 miles. Smell of Burning Oil, This burning smell could be from an oil leak onto the hot components of your engine. Generally a thicker oil will withstand more abuse, however thick oils can take longer to reach engine parts when the engine is started. How to Repair a Lawn Mower Engine. A diesel engine can ping, cling, clang and bang, and all the time you are wondering just what is acceptable and what is not. Check the oil to see that it's at the proper level (not low nor overfilled). If you don't have enough oil, or enough oil pressure, the top end of your engine will suffer first. The most likely cause of a car losing oil pressure when it warms up is a problem with the pressure relief valve, which regulates the oil pressure to ensure that there is enough pressure to circulate oil throughout the engine. Very often we can hear knocking noise in the 4th cylinder. Engine Knocking. However, it doesn't guarantee the knock will go away. i have 107,000 miles on the car. Hopefully, the knock in your engine is due to a faulty spark plug lead, as this is the simplest cause to fix. The HEUI system uses engine oil to actuate the injectors; if you are low on oil you will have problems. I had a oil leak from the oil pan. An accident can often be avoided by recognizing potentially. I have issue that Hyundai recalled the sonata and santa fe of the same year and also kia recalled the sportage for engine knocking. If you have this many problems with this engine I would suggest getting a used engine with low miles and a warranty you can get one for less than a 1,000 and installed for around 500-600 dollars. A diesel engine can ping, cling, clang and bang, and all the time you are wondering just what is acceptable and what is not. OK, so I was driving my bosses car while he is out of town and the engine started making knocking sounds. fordpartsonline. Engine knocks can lead to further engine damage if not rectified immediately. This problem is reportedly common with this 4 cylinder engine, but I do not have sufficient data to better assess. what you hear is affectionately known as a rod knock. Initially i was in the assumption that it was one of the valve lifters giving. Whether it be a gasket leak or a. Knocks at idle and during accleration. Step 5 is to have the mechanic diagnose and repair the problem. Based on Illinois Environmental Protection Agency data test, the most common trouble codes that cause an OBD II plug-in emissions test failed on many vehicles and make the Check Engine light on would be fouled or a worn out catalytic converter. Check Your Oil Level First. Each of the engine knock causes on the previous page has a specific cure, and most of these fixes are simple. The day after the oil was changed the sound slowly went away while driving nearly the whole day. I just purchased this vehicle on April 19, 2016. Attachment improperly. I mean you could probably keep running it at lower pressures but doing so indicates you have wide bearing clearances and I don't see the point of running stuff till it totally dies. See your John Deere Dealer. Knocking is not fixed by switching to synthetic oil. if it was a rod nock, the noise might be loud when first started becuase of lack of oil on the bearing but would probly turn quiet after a few seconds as the oil pressure rises. Is the oil level low? Add oil to the engine. I can confirm that Ametech Engine Restore Oil will repair the 'wear' in your oil pressure system. If you're struggling to find the right oil for your car, you could try the parts department of a manufacturer's dealer. If the engine is knocking, the bearings are probably bad now anyhow. Below are the symptoms of having a. Probably the first thing you'll notice is the oil pressure gauge or the warning light reading very low or coming on when the car is fully warmed and idling like at a traffic light. A deep rapping noise from the engine is usually rod knock. But a severe lack of oil pressure could indicate something much more serious. Added oil and engine seemed fine. An engine depends on clean oil to lubricate the internal moving parts. I am hearing a low end deep toned knock at idle. Pure CBD Oil contains pure CBD compound, which has a more flexible legal status as well no taste, color or strong odor as Full Spectrum CBD Oil. Start the engine and let it reach normal operating temperature. Freelander Cars. * Radiators: Keeping things cool. The knocking sound was the tensioner vibrating against the belt swing pulley/wheel at the bottom of the engine - it sounded like it was everywhere though!. A knocking noise that only happens on engine start up for a few seconds might be a sign that the oil is bad. Can I drive my car if the engine has Hydraulic Lifter Ticking? filling the oil first, might fix it, if not: enough or letting the car run too low on oil at. The dealer is less than helpful. 169EG36 Lock Pin In Operation Vane (Fixed on Intake Camshaft) Housing At a Stop Lock Pin Oil Pressure Intake Camshaft 2) Camshaft Timing Oil Control Valve. When your engine oil is running low, it stops lubricating the engine components. I am wondering about using a heavier grade of oil and/or an additive to try to quiet this down. VT1100 Engine Noises. Quick Tip Repairing or replacing a seized engine can be extremely expensive, it can cost you around USD 10,000. Your MINI Cooper's oil filter has a cartridge that slips over a perforated center core that is attached to the inside of the oil filter cap. Lets do the math. Therefore, it is highly recommended that you get your car serviced and the engine oil changed regularly, as mentioned in the owner's manual. I'm getting a knocking coming from my engine. Ford included all the latest technologies into the 4. the new heal-a-seal tm engine oil stop burn is in fact a different type of engine oil sealer - and oil stop leak - as it is specially designed to stop or significantly reduce the internal engine oil leaks, and on any engine - gasoline or diesel, with any kind of oil, including the synthetic types!. 3L, 4 banger has a slight knocking sound. If you have a new gasoline turbo engine use AMSOIL motor oil to ensure that you will not experience the 'Super Knock' that is LSPI. Low oil pressure is a common cause of a check engine light turning on, and it can seriously interfere with your car’s performance. Engine runs superb at full throttle. When I first start it up in the morning, it runs fine and sounds fine, but once the engine warms up, the oil pressure drops drastically at idle and makes a sort of knocking sound that will sometimes fade out a bit at 2000 RPMs but is pretty aggressive. by Kyle McFadden. If the engine in emitting black smoke, this could mean that the air filter is dirty, the fuel could have gone bad, and/or the carburetor is flooded. But a severe lack of oil pressure could indicate something much more serious. I filled the oil and the knocking sound remains. 5 psi is dangerously low by me if it doesn't improve with a filter/oil change. I am hearing a low end deep toned knock at idle. This noise is actually occurring. Of course there is now way I can tell you every single problem that could happen to your engine,. After the first indicator I moved the vehicle to level ground and evaluated the condition. like knocking on cold. You should check this before buying or topping up your car oil to make sure you get the right type. many many things, Loose lug nuts which lets wheel make knocking noise. While driving the oil guage reads around 40 (guess I'm still in the rut of old school where oil pressure is 60 and you use 10w-40). Freelander Cars. In order to hear the engine noise reliably the sensors are buried under the intake manifold. It can also mean that an engine part, such as a valve is wearing out. If you haven't changed the oil filter since the low oil pressure issue starter, replaced the oil filter and see if this fixes the problem. I am often asked to diagnose vehicle problems over the phone, if only it was that easy. It worked well, and. However it is still knocking like crazy. Engine oil leaks may hit the ground or burn off. Sometimes the base of the distributor gets worn (where it fits into the right hand or passenger side oil galley) and allows oil pressure to bleed off. Nevertheless, there are tales on the Internet from folks who say. 7 Low Oil pressure ? IP: Logged Message: I have a 2002 durango with the 4. Restoration of restricted oil passages, depending on the severity, could save the engine from the junkyard. This problem is reportedly common with this 4 cylinder engine, but I do not have sufficient data to better assess. Why Is My Engine Knocking When My Car Is Idle? When an engine knocks, one of the likely causes is low-quality fuel. Many SUBARU engines came from the factory with a plastic oil separator plate. If the engine is burning oil, the valve guides and seals are most likely worn, but the rings and cylinders might be bad, too. Low oil level: A vehicle that’s low on oil tends to overheat because the oil removes from 75 to 80 percent of the “waste heat” in your engine (in addition to doing its other job of cushioning the moving engine parts). It's a 2012 and keeping up with oil changes and tender loving care. The dealer is less than helpful. While brand new oil is a relatively clear, free-flowing liquid that lubricates and protects the engine, sludge slowly chokes the engine by increasing friction and heat. when low on oil the car dies due to the timing being off. This is because wear and tear eventually increases bearing clearances. Low Oil Pressure. The symptom is a distinct ticking or knocking noise on every second rev (car idles very low at some 580 rpm at moment, giving some 290 knocks/minute. A faulty or damaged. It turns out I had used a "real" oil pressure sender in a. 5X with 43,000km. Wipe it clean with an old rag, place it back in then pull it out to read it. Where is the oil pressure sending unit located on a 2001 F150 Triton V8? I've been experiencing the same problems that everyone else seems to be having with the oil pressure gauge reading 0 at startup. I found that the oil suction screen on the oil pump had fallen off into the pan and when it got almost a qt low the lifters would rattle. Abnormal combustion, more commonly known as knock or detonation, has been the limiting factor in internal combustion engine power generation since the discovery of the otto cycle itself. Cars do get low on engine oil, especially now that we no longer have full-service gas stations to check it for us. Engine knock detection is necessary for solving the engine knock problems. My 03 chevy Tahoe 5. Find out what the most common causes. Eventually the "low pressure oil" oil light comes (hopefully). That's actually how I found out about this - when I put a rebuilt engine from a 1987 F150 into a 1989 F150, the oil pressure gauge was reading very low all the time, which led me to investigate the factory gauge problem and verify the oil pressure with a mechanical oil pressure gauge. Oil usage in the BMW N54 twin-turbo 6-cylinder engines is quite common. 1 Improper Engine Oil Level. Before calling the mechanic there are some steps you can take to. I know could be all. Acura engine knocking noise Acura engine knocking noise. I show before and after engine noise differences along with oil pressure increase will it help knock or ticking ticking lifters rod knock you decide and check out sea foam it destroyed my engine. Knocking Sounds, The reason is because there is less oil to lubricate the engine parts. It 'seems' to be coming from the engine rather than the pump - as if a pump setting/problem is causing the knock rather than anything physical within the pump. still I have doubt on MAF. Has solid knock in engine as if hitting tin. If the engine is emitting white or blue smoke, this means your engine is burning oil. Diesel Engine Problems. Is the fuel mixture too lean?. If the engine in emitting black smoke, this could mean that the air filter is dirty, the fuel could have gone bad, and/or the carburetor is flooded. Immediately back off the throttle and only use low rpm engine speeds until you can get the engine investigated. Yet in spite of these things, pistons do sometimes fail. Why Is My Engine Knocking When My Car Is Idle? When an engine knocks, one of the likely causes is low-quality fuel. The symptom is a distinct ticking or knocking noise on every second rev (car idles very low at some 580 rpm at moment, giving some 290 knocks/minute. When hydraulic pressure is not applied to the VVT-i controller immediately after the engine has been started, the lock pin locks the movement of the VVT-i controller to prevent a knocking noise. (See your technical manual or your John Deere dealer). 40 when hot. Once an engine develops a noise like this, there is no easy fix. From what i heard they removed the low oil light after 1996 or something? So, 1984-96 stangs had the low oil light if im not mistaken. If you're struggling to find the right oil for your car, you could try the parts department of a manufacturer's dealer. A cracked engine block can result in: Oil and antifreeze mixing; Engine overheating; Low engine compression; Excessive engine smoke; Visible crack in block; How Much Will Engine Block Repair Cost at a Garage? A failure in the engine block will leave you stranded and more often than not facing a huge repair bill (at least $1,200, probably more). For about two years i have rare but loud start up knock that lasts at least until the engine is hot and varies with rpm. While it's consider one of the most bulletproof diesel engines available, we expose two of Cummins' fatal flaws including the killer dowel pin the engine block 53. It's easy to misdiagnose the cause of knock, and there might be more than one cause, so you might have to pay a visit to your mechanic. Lucas (oil additive) it and pray. I share your concern. Knocks at idle and during accleration. 7 Low Oil pressure ? IP: Logged Message: I have a 2002 durango with the 4. Diesel Models: Injection pump out of time. After the first indicator I moved the vehicle to level ground and evaluated the condition. A faulty or damaged. Possible explanations: a. Just five years from now, it's estimated that a quarter of all cars on the road in North America and 39% of global production will utilize this combination of engine hardware. Haven't had a issue yet, but yesterday started noticing a engine knock at about 2,000-3,000 RPM. If the oil level is low be sure to refill it to the proper level and you also may want to consider using the BlueDevil Oil Stop Leak as it is probably low due to a leak. A rod knock is as described A low pitched knocking sound which can be heard low in the engine. It is really faint compared to any other rod knock I have heard. I've done some research about it but, unfortunately, I can't afford to buy an engine for an engine swap, nor am I going to have the time to rebuild it properly. Granted, cases of excess oil consumption can also be due to other causes, such as weakened piston rings. "Type of oil has nothing to do with traditional engine knock (a. If the rod knock is as a result of low oil levels the following steps can be used for the oil change. Generally a thicker oil will withstand more abuse, however thick oils can take longer to reach engine parts when the engine is started. Common Symptoms Of A Low Engine Oil Level: Warning Light, The simplest indicator of a low oil level is when the oil warning light activates. Hyundai Elantra Engine Problems. Fill the reservoir to the proper level with recommended oil. Blue smoke is a clear sign telling your car engine is burning oil. Oil may be the lifeblood of your engine. The terms valve clatter, pinging, pre-ignition and detonation describe the strange rattle or knock coming from an engine. Knocking and low oil pressure on idle Alexandru Necrutu. The main cause for engine knocking is when you have a large amount of unburnt fuel. Unfortunately, if you've got rod knock, the only answer is rebuilding your motor. Low oil pressure is also a symptom of excessive oil clearances but is less common (by the time the oil pressure goes low there’s usually an engine knock evident). I am close to due for an oil change but I know I am not leaking oil. Operating at too fast ground speed for conditions. One of them is preventing friction between your engine rods (you know, those important little beams that hold the pistons in place). Knocking Sounds, The reason is because there is less oil to lubricate the engine parts. You can troubleshoot the check engine light for free, on your own time at an auto part store or with this tool. Why Is My Engine Knocking When My Car Is Idle? When an engine knocks, one of the likely causes is low-quality fuel. I went into detail about what causes the ticking or knocking noise in your engine and how you can fix it in a previous article. I am NOT a mechanic so be. I show before and after engine noise differences along with oil pressure increase will it help knock or ticking ticking lifters rod knock you decide and check out sea foam it destroyed my engine. First, drive the car to the mechanical ramps. Oxidation of the internal components of the engine will make the mower impossible to start. 8L engine and I am having oil pressure problems that only occur at normal operating engine temperatures. According to Auto Haus AZ, the friction that oil is supposed to prevent will eventually cause the rods inside your engine to come loose if the oil level has dropped significantly. Unfortunately, if you’ve got rod knock, the only answer is rebuilding your motor. Verify low cranking speed repair; refer to "4. With a low-emission engine, the versatile straight-shaft FS 56 RC-E loop handled trimmer is ideal for homeowners with heavy grass to trim in hard-to-reach places. I beleive the knocking might be tied to something with the oil. See all problems of the 2009 Honda Odyssey. Low oil pressure i would like to ADD a cause i found in my repair. High mile engines will always lose oil pressure, especially at idle. My truck with 150000 miles acts like your engine. Code 44- Lean exhaust indicated. We halt the repair process before it reaches 100% because we DON'T want the dimensions to be over-reduced from original (which would make the engine tight of course!). motor knocking/oil pressure questions I thnk 30 psi is low for a tight, new engineI've built plenty, and been around plenty. This article applies to the Mercedes-Benz E-Class and E-Class AMG (2002-2009). Knocking Noises - If your car engine knocks upon starting the car, there is a good chance that your engine bearings are worn and need to be replaced. The engine makes a wierd knocking sound right at 1500 rpm , but I don't notice it unless I'm going up a hill at around 40 mph when the engine shifts and drops to the low rpm that's when I can hear the sound. Got home, checked oil. Engine Knocks Engine oil level low. I thought it was something major like a spun bearing in the engine so I did and oil change and took the filter apart but saw no sign of metal bits. Anyway, after a visit to a mechanic, we now know the engine has serious rod knock and they want $8500 to put a new engine + clutch/pressure plate! In a car with less than 200K miles. I do not know what a knock sounds like, but the vehicle only has 50,000 miles on it and it has been well maintained.