Engine making a clicking sound. 11 Turned the AC fan off and still does it they replaced front shocks and no more ticking! renegade92 said: I will try to keep this as simple as possible so that there isn't any confusion about my engine problems 0L in-line six, 113,000 miles, stock intake, free-flow exhaust Your engine may be low on oil or there could be a problem inside the engine causing the low oil pressure The next time you stop for gas, be sure to check the oil level in the vehicle 0 Valves Out of Adjustment Loose or cracked spark plugs cause ticking sound in engine PCV valve: It is recommended to change your car’s PCV valve from time to time The problem may occur when the engine is hot or cold or when you are low on fuel And you have not run it any length of time making this noise you should be fine If you get lucky, the noise may subside when you refill the engine with oil 5L renegade92 said: I will try to keep this as simple as possible so that there isn't any confusion about my engine problems Works on the same principal of a hydraulic lifter in an OHV engine (3 My '97 Storm has a ticking sound, especially at idle They are called lash adjusters Ryan_T The noise may also be described as ticks, taps, knocks or thumps A ticking noise when accelerating can be caused by many things In some cases faulty wiring can also From inside of car with windows closed: can't notice unless you know what to hear for Gerald; I would get the lower unit removed and check the engine driveshaft for lateral and vertical play, indicating a shaft bearing or possibly a loose pinion nut You certainly can't miss it Earlier in the season, I noticed a quiet clicking sound coming from cylinder 1 TheLaw Ryanmcginn said: There is a very constant ticking sound at idle coming from my engine bay, I took it to Honda and they said that it was normal but I only started hearing this ticking after 21k miles We adjusted all the valves so its nothing to do with them I dont think The cause is often excessive valve clearance or a defective hydraulic valve If you hear the noise clearly coming from the valve cover areas, it's likely a valve or rocker arm or something good job Toyota on cabin noise! Sound is like tapping aluminum tray or flapping sound mark65 Here is the run down: Stock 4 Valve Train Noise I also try jump starter to start the car, but same result It sounds like a VW Jetta TDI diesel on a -40C morning it sounded to me like the engine was knocking Here is a video of the engine at idle, I think you can hear the ticking noise the clearest Think this one is loud you should hear the old 2 Tapping sound also noticeable after a long drive and car is idle Try different places on each area and see if you can pinpoint the noise You will hear this sound if the engine is low on oil Rattling noises when accelerating can be caused by low fluid levels in the A/T Summary skiboy78 Another possibility is that the starter is in fact getting enough CCA, but the solenoid in the starter has failed, preventing your vehicle from starting Nothing that would make me think the engine doesn't sound "right" At times it is very fast and loud, other times it is not CV axle Joined Dec 3, 2002 The lock problem can be solved by trying to kick off the engine manually with a breaker bar and wrench Engine sounds rough when accelerating; When accelerating there's a ticking/clicking noise (similar to a card on the spokes of a bike; like what children do) Check Engine light: 'Bank 2 system too lean' When maintaining a steady speed it sounds completely fine #13 · Jul 2, 2014 So as it carries out this task, it can emit a ticking sound The sound could also be from the PCV valve, especially when the valves are old 2) it could be the quality of the diesel from the petrol station, in my country GM has issued a service bulletin #10-06-01-007D to address Engine Ticking Noise When Cold on the vehicles listed below After checking all suggested and it still tapes like a old sowing machine and the noise is coming from the dry lifters I have a Gravely ZT XL 48 zero turn mower with a 24 HP Kawasaki twin cylinder engine, model number FR691V-AS08 The problem may be due to some electrical component in your car drawing power Its a 2 1) it cannot be because full tank is too heavy as it can load 1500KG However, it was not like this when I first bought it last month 278 Posts Table of Contents Is Engine Ticking Normal? Common Causes of Engine Ticking Noise 1) Low Oil 2) Lifters 3) Exhaust Leaks 4) Misadjusted Valves 5) Damaged or Worn Spark Plugs 6) Worn Accessory Drive Pulleys Why is My Engine Ticking After an Oil Change? Engine clicking may also manifest through other sounds from the engine such as humming, clucking, screeching, or ticking noises The other day my alternator went out and I changed it with a reman alternator Check the oil level and add if necessary With the fuel pump, the pushrod can get bent if a too-long bolt is EVER put into the right front bolt hole (second hole up from bottom) in the block, the one that intersects the fuel pump pushrod hole it was the magnetic ride shocks, and there was a service bulletin for that problem Due to the unique layout of the boxer engine, the exhaust pipes coming off the manifold are exposed to excessive temperatures 4L 4Cyl 130k miles Caused by excessive wear on valve stem or lifter, out of adjustment, or stuck valve A timing chain will always make more noise than a belt, but I prefer the noise to having expensive maintenance & possible failure of a belt When your car won’t start, and all you get is a clicking noise, the battery is usually to blame A nearly silent clicking A low oil level can cause engine knocking It’s possible that you put the wrong octane fuel into the system, which can cause this problem Hold the handle of a screwdriver to your ear and touch the top of each relay with the tip of the screwdriver Clean Your Noisy Lifter with Oil Additives Only show this user The AC takes up so much of the engine resource its untrue Step 5 - Check The Engine Apr 18, 2014 77 Posts 0 makes the same clicking noise after shut off Battery could be bad, alternator could be bad or the solinoid might have issues The exhaust coming out of the resulting holes often makes a rhythmic ticking noise Ending engine tapping noise Low battery voltage In the case of a blown engine, you should probably sell your blown engine car i have the same problem and it started around 70-80K, and i have always used mobil 1 10w-30 No problems since I got it The purge valve’s job is to release fumes stored in the engine’s intake system where they burn 113 It happens (in my case anyway) when hooked to shore power and usually when certain appliances are on and/or when drawing a fair amount of electricity, like when several 12V lights are on and maybe more Jump to Latest Follow Simply changing your oil can also get rid of the tapping sound, as over time an engine that is neglected of maintenance will begin to clog up its oil filters meaning that a build-up of grime can Jan 24, 2017 · Maintenance and Service Any suggestions on where/what to start Clicking when starting usually means the starter motor pinion gear is crashing into the flywheel due to a depleted battery that doesn't have enough "juice" to spin the engine Ratio tapping to engine is about 2:3 When in the driveway it revs to redline fine with no issue Answer (1 of 5): Well, there are a host of things it may be While it is not the leading they replaced front shocks and no more ticking! Jun 10, 2014 Popping/Stuttering Sounds I would actually say that in 90% of cases, this is the problem when your car clicks when trying to start Adjust the Hydraulic valve lifters These noises can be caused by worn or sticking hydraulic lifters I took it to the dealer and the service rep said that it is just the catalytic converter/exhaust cooling down If I'm wrong and I might be ,there are many good other things to check suggested here The lifter noise is not heard at higher RPMs because the oil pressure is higher as the engine speed gets higher One that I'm very familiar with is fuel injectors Some engines have a normal ticking noise caused by electrical components like injectors, relays, and solenoids, and also the engine itself makes some noise turning thousands of RPM's (revolutions per minute), but for the most part, engines should generally have only Posted September 29, 2009 This happens only in certain make and model vehicles Connect one lead of the meter to the positive lug on the battery and the other to the large terminal on the starter Typically, most cases of ticking sound in the engine while idling are often due to an unadjusted valve train Mar 22, 2011 This sounds accelerates and decelerates with your RPM The direct injection noise has TWO LEVELS of noise The clicking sounds (every 20-30 seconds or so) is the converter/charger switching from full charging mode to trickle charge mode This is fairly common these days and is not right when I slow to a stop, the clicking is louder, for a second or two, then drops down to the quieter clicking Aside from the two mentioned above, low oil level is probably the most common cause of engine clicking It doesn't make the noise during the auto shut off while driving The oil level looks fine and it continues when the AC is off The most common reason why your car clicks when trying to start is a dead or drained car battery If the noise is while the engine is running , as mentioned , it could be the fuel injectors or your valves Locate the problem relay The noise is usually more noticeable when the engine is warm According to the Oard, the following engine functions can emit a “normal” ticking noise: Purge valve: An engine’s purge valve releases stored gasses into the engine’s intake system where they are burnt up 2 Auto A lifter is what opens and closes intake and exhaust valves Step 1: Jump start your car Under any amount throttle level it seems to be gone the clicking noise happens under heavy acceleration or acceleration on a climb Initially, the clicking sound was totally noticeable Open the hood and check the fluid level If your car is making a clicking noise, it might be a CV joint failing on an axle shaft or an internal transmission issue Replace if any of them is cracked A knocking or ticking noise from your engine is a sign that something is wrong Mar 25, 2013 · Joined Jun 29, 2010 Has 152,000 miles and has been an amazing car The new engine oil will help clean the dirt and cut down the engine clicking sound We just tried to fire up our rebuilt 289 today and we have a clicking sound coming from the front of the engine The engine clicking sound you are hearing might be coming from the components of the engine valve train such as rockers, lifters, camshafts, and cam adjusters Here are the most common causes of engine knocking sounds: Low Engine Oil If this is what has happened and I'm about 70% sure Ticking, tapping, or clicking sounds can also be symptoms of worn valve train components such as lifters or cam followers After doing this, start the car and take a short test drive to see if the problem goes away The spark plugs are aa little more then afew years old (NGK) Loose Parts 1 · 5 premium and everytime I turn the engine off, there is a clicking sound I have seen references to a 2020/06/24 If the ticking goes away after the engine warms up there shouldn't be a problem, but it if continues, take it to a mechanic These noises are odd enough sounding many are surprised by them I just picked up my new Escape 2 weeks ago and it started making a diesel noise at idle the next morning BenW said: In my current fiesta when it clicks u can feel a "pull" on the car while driving com, a ticking sound coming from your engine could be a sign that your timing belt is failing The bent rod can knock When I rotate the engine by hand the exhaust cam rotates over before the intake cam and it leaves slack in the chain between the cams until I rotate the crank a couple of Oil additives are helpful to stop oil leaks Check the level of your oil and add as needed When the truck has warmed up it idles fine just a little low around 350 RPM A deep rapping noise from the engine, is usually rod knock Check the Battery, Terminals, and Cables The 2001 Forester's engine never had a single mechanical problem at all during my ownership Most times you may hear ticking noise in engine Perfectly normal It's layered over the normal ticking we hear on this engine In fact, it almost always means you have a serious (and costly) problem on your hands by sounds of it u guys only hear a the click in the new one and no way near the extend of the AC effect on the previous model If you discover your car making noise when turning, there are several things it could be This is an older thread, you may not receive a response, and could be reviving an old thread In some cases the noise may be a normal characteristic of these these 6 That ticking sound that the OP noticed at drive up windows, etc I just purchased a new 2010 Outback 2 The ticking noise appears when the engine has been off for more than 2-hours The Symptom: Engine hesitates, and a popping sound comes from the engine I read online that the noise could be from dirty fuel injectors, that the spark plugs are loose or making a bad connection Media Platforms Design Team When you step on the gas, the engine bogs down or takes a second to respond Since replacing the valve/solenoid, the loud clicking is gone and I have "normal" engine noise and idle The tick noise may last from two seconds to ten minutes You might also note its not every time you shut it down that you hear it You can read The Drive’s How To Lift a Car My engine has developed a strange ticking sound There are 2 places in the motor that cause the tap When it's cold the molecules that make up the metals contract causing a slight gap in between the manifold and the engine We removed the fan belt and the sound continued so this rules out the water pump 9 If you changed the engine oil and you still hear the clicking noise, then there is another problem causing the clicking, and it requires more complicated repairs than the simple oil change fix Make a visual inspection when the engine is off and cool Once the engine warms up the metals expand and form a tighter seal, getting rid of the sound Snap, crackle, pop: A sharp snapping sound that may be irregular or regular may Recently I have this weird popping/clicking noise that has developed Remove any My trucks engine makes a ticking or clicking noise when it sits in idle Clicking Sound Under the Hood The clicking sound probably comes from a torn shaft boot on one of the CV axles Probable cause What you’ll be needing As soon as I let go of the throttle (while moving) it stops It does get faster when revving I recently heard a loud clicking type tapping noise coming from engine #2 The engine can make a distinct pinging or metallic knocking sound while driving 1- A sticky, slow-closing valve where a space appears and closing the space causes the tap tap tap on engine rotation as the valve is pushed open The most likely issue is that the vehicle is simple low on engine oil i have a 2016 yukon denali that had a ticking noise coming from the same area (sounded like front left side engine compartment/ maybe behind dash) anyways, took it in to dealer, the tech said he used "ears" to isolate where it was coming from The clicking was around 5~6 times a second 2- A tap occurs when the wear adjuster for one of the valves has sludge blocking oil to it Sooner or later one of the bearings will fail, and when it does, one of two things will happen 4,845 Replace the damaged Pushrods In the Haynes manual I have , they say the valve clearances are checked by ear (audible) Re: Motor is making a "Ticking" noise These temperatures can break down the metal materials quickly, resulting in an exhaust leak It sounds more like a clacking noise Very common on the 3 The headlight also works fine My engine started making a clicking/ticking noise today, it started randomly as I was driving home from work today Recently I notice that after pump full tank, the noise come It sounds louder at the bottom than the top of the engine I figured out that the noise is really only prominent when the car is in gear and at idle Begin your inspection by making sure the battery terminals are clean and tight, and that the battery cables are in good condition Next test Today, right out of the blue, upon starting my car it began to rapidly click without cranking the engine LOL! Mine does this weird electrical buzzing noise immediately after the engine is turned off for about four or five seconds, then it stops Get under the car and tap the cats with a rubber mallet The overall noise reduction in engines produced today makes this noise seem new when, in fact, it was present in prior model year vehicles, but masked by other noises in the past With that being said it is also possible that your battery is not providing enough Cold Cranking Amps (CCA) to the starter so it can turn the engine over Another probable reason for why your car won't start and is making a fast click noise is a locked up or frozen engine So much so, that people would ask me if that was normal Does anyone recognize it? I’ll take it for a drive to see if it goes away after being really warmed up How To Fix Lifter Tick Noise If the car is running low on transmission fluid, refill the reservoir to the proper level thats pretty loud, so i pulled into a space and popped the hood Jun 10, 2014 Replaced the intake and header gasket This noise is caused because the power This is brought on by, extreme bearing wear or damage The clicking noise should be gone 5 volts or less From top of engine, then it likely would be a lifter tick from the rocker arms In any case, if the car starts, the issue could be with the battery i have also notice that right after an oil change, the noise is not there but about 500-1000 miles after an oil change the sound would come back If there is a problem with the driveshaft or not, the guts are going to have to be pulled from the housing to further In some cases the noise may be a normal characteristic of these engines Locate the engine’s starter motor using your dusty manual or a quick Google search In a single cam engine, the pushrods are actuated by the cam, and they open the valves via a lever known as the rocker arm 2009 2 It sounds like it is coming from the top of the engine (I know absolutely nothing about engines) so I am unsure I have a 2002 ford focus ZTS ZETEC engine with 78,000 miles on it There are various reasons why the engine makes different sounds First things first, you must know how the engine functions since Once the engine warms up a metallic spring expands and the flap opens Drive the car harder and you can't hear the noise The problem: About a minute after a cold start, the engine develops this very pronounced ticking noise The mechanic may use another vehicle, a jumper cable set, and a battery charger for this People also ask, what causes a ticking 4L, 3-valve engine may exhibit a ticking and/or knocking noise after reaching normal operating temperature, or may exhibit a rattle upon starting Often a broken cat will make a rumbling sound like a rock tumbling (when a piece of the ceramic matrix breaks off internally it will hollow out a cavity inside the cat) Ticking noises with engine rpm (higher exhaust flow) seems possible though Battery seems to be okay since lights and accessories come on with key in the ignition My 2021 Soul GT Line 2 Its whisper-quiet before an oil change, and then makes a loud tapping after a new filter and fresh oil The clicking has become more pronounced over time and as you rev it the speed of clicking increases Try to start engine and note voltage This lack of electrical current could be because of a failing battery, a bad connection at the battery or even a bad alternator that isn Sometimes the valves will open and close too quickly, causing the fuel injectors to fire too much fuel #1 A noise when you go over speed bumps could be the sign of worn struts or sway bars the booo sound as if the engine is under power The bearing will seize and lock up the engine, or it will attempt to seize and break a rod Some of the sounds stay even when the engine is warmed up GM has determined that the noise can be caused by any of the following: Car makes a clicking sound but will not start 236 Posts Open the lid on your fuse box and take a look at the relays -- the small black cubes scattered around the fuse box (Learn how to test a I thought, it could be a battery problem When you hear a distinct, repetitive ticking through the screwdriver, you’ve found your 7L diesel engine includes a number of design improvements to reduce diesel engine noise, Typewriter Noise can be more noticeable than on previous products Pulled valve cover to replace leaking valve cover gasket Change the Oil In the event of strange or unusual engine sounds, remain calm, grab an automotive stethoscope, and be on the lookout for: Valvetrain Noise The "ticking" sound is the exhaust pulse When you hear it: As you turn the steering wheel, the engine is running, parked, or driving The dealership said it was relays resetting and normal VALVE NOISE: Makes clicking or rattle noise Solved! My engine was making a knocking or tapping sound that varied with engine RPM, or at times was almost inaudible 7l fords suck use f550 at work has about 11k on it same noise engine light been on twice reduced power once and now going to limit speed to 50mph in 36 miles for what ever reason they suck and dont have any power should have bought a duramax 5) Fuel Injector Firing This condition is known as detonation knock I have a 2003 Ford expedition xlt The most common noise is growling noise, which is often due to low power steering fluid Take a look at Honda TSB 08-017, "Engine Knocks or Ticks at Idle" 5L is a SOHC) Some background It is important to find the root of the problem as there is a risk that the engine will be damaged, making the repair bill greater than it would have been originally Sometimes, the torquing of the plug is not correct Louder and faster matching the gas applied (This got rid of the whistle from the intake but ticking still there) 3 I guess this means that it's not necessary to check the clearances till you hear them clicking A good reading is If there is a broken one you should hear a May 5, 2005 In most cases, the cause is oil pressure, exhaust leaks, spark plugs, or the valvetrain It sounds like its coming from the left side of the engine This is because a spark plug that is not properly seated allows exhaust fumes to bypass and cause an engine to tick You may choose to use oil additives to top off your engine oil Shaggy Wierdo What happens is the rocker arm are essentially the lifters in this motor, or rather the valve ends of them are Rotating parts, like belts or brakes, make grinding or whining noises, but reciprocating parts, like pistons or tire rods, make an annoying ticking or clicking noise during operation A typical engine these days has a few things that are naturally noisy like that Brake problems such as a dropped or worn out lining or stuck caliper may show up as a new sound or vibration Kinda resembles a turn signal sound and rhythm Diagnose Engine Noise · ENGINE CLICKING NOISES · COLLAPSED LIFTER NOISE · ENGINE VALVE NOISE · ENGINE BEARING NOISE · ENGINE PINGS OR KNOCKS WHEN ACCELERATING Once again, low engine oil makes the list If you have high mileage, you could benefit from the next higher viscosity oil Following the steps outlined in this Fuel injector firing may cause engine ticking noises too Not sure what had happened and searched a bit online and got various possibilities The most common problem when it comes to this problem is low voltage from the car battery Issues with your engine’s lifter 2011 A4 Avant The heat works while driving, but does not seem to work well when idled #9 · Mar 17, 2018 The clicking sound could be from your purge valve An engine rattling noise, or a clicking sound in an engine, can spring up from a number of sources This tick also isn’t dangerous for your engine, but should be fixed as soon as possible to keep exhaust gases where they should be Seems louder at cold start-up for about 3-4 seconds, and is hardly audible at low RPM/light throttle I also have heard this sound ( click-click, click-click, click click ) from the back of my vehicle approx 25 - 30 seconds after I shut down the engine I dont think this noise is the typical lifter tap noise Or they might try alternative methods for jump-starting your car, like using a jump start box or spinning the car’s alternator The timing chain on GM ecotec engines has always been loud, even this newer 1 Some vehicles equipped with a 4 Discussion Starter · #1 · Jan 29, 2004 I had a 2001 Forester for 7+ years and noticed it from day two Valve and tappet noise usually begins as a clicking sound, or chatter, at half engine speed and may then disappear at high speeds If it is low or empty, add some oil Stay tuned and keep reading to know why and what to do when engine clicking happens Anything higher indicates a problem with the positive wiring or relay/solenoid, whichever you have You may notice a general lack of power According to Steve Pinney from Fullthrottleautoservice 5l with about 170k miles I have removed the drive belts and it is still making the noise The cause of your ticking noise could be a loose part in general seems to be IMO an inherent Subaru noise In high-mileage vehicles, old or faulty spark plugs can cause a clicking noise in the engine This occurs when the fuel and air mixture in one of the cylinders is detonating at numerous locations simultaneously In the case of a frozen engine, switch the car on and give the engine time to warm up gradually Sticking lifters in most cases is caused by a varnish build up on the lifter surfaces 12 Quote: Originally Posted by Ekeenan86 It is not rhytmic Wiggle the plug after removing the spark plug wire to see if it moves You may want to invest in an hour of shop time at the dealer or an indie shop to diagnose it and then do the fix yourself, if it's within your scope Finally, buy new lifters If yes, then you have to tighten the plug 4T version This will result in engine ticking noises Black/MB Next, check the battery’s state of charge using a digital multimeter (DMM) My wife thought it was a mouse of a large snakes inside The motor can also fail and cause a clicking noise Rapid clicking usually suggests that there is enough power in the battery to bring the starter motor to life but not enough to crank the engine Get it clicking really noticeably then the car shifts and the click seems to stop until the RPM's come back up to about 2K Each time your engine spins twice around, the valves have to open and close once The following are several of the most common root causes of engine-related ticking noises Clicking sound and the inability to start may be attributed to inadequate power being supplied to the car’s starter motor, because of car battery terminal corrosion So ensure you change old PCV valves to avoid such noise Pop the hood and disconnect the battery terminals 02-19-2005, 09:48 AM A vehicle can make a few noises while turning Now it worked fine everything back to normal but now there is this loud ticking/clicking noise coming from the pulley area I have a 2012 FORD RANGER XLT 2 2 "eco-tick" when the oil was cold, sounded like a diesel engine Cause of ticking noise 6L, 3-valve or 5 Range in or out , still makes the noise either the rubber has gotten old and brittle or the tensioner could be failing Turning the key produces a clicking sound that repeats as long as the key is turned A stuck valve can sometimes be loosened by passing oil through the carburetor while engine is 2 Exhaust Leak 2009/09/11 It sounds to me like it could be a carbon related knock or piston noise I have heard from people thats just a ford being a ford sounds like your rocker arms or hydraulic lash adjusters are lacking oil My guess would be the exhaust manifold The most common cause of engine ticking noise is low oil pressure I feel like the clicking noise comes from under the dashboard, but i'm not certain It's also noticable at very light throttle (slightly decelerating) Because the 6 Re: Engine making a fast pace ticking noise Usually a rapid clicking noise is a good indication that your starter motor isn’t getting enough electrical current to engage – basically your solenoid is trying to engage but can’t make the connection Clicking Noise When Turning Solution: Add Power Steering Fluid, Fix Leaks 03-13-2013 11:02 PM #15 Take a long screwdriver, put the end of the handle against your ear and put the metal end first on the engine case, then on each valve cover in turn 5 Causes of Car Clicking When Trying To Start i have since switched to I've been searching on the net for Escape owners with the same issue, but honestly it's hard to find If your car’s engine is making a shrieking sound it could be an issue with the serpentine belt Guest Recent complete tune-up In some cases, this noise can also be caused by a misaligned spark plug 172,000 MILES If you hear a soft clicking sound beneath the hood of your car, fear not If you notice that the clicking noise is most prominent when you turn your car, the most likely suspect is a CV (or constant velocity) axle As high-pressure exhaust escapes from a crack in the manifold or a leak in the gasket it will sound like ticking or clicking especially at idle or low engine RPMs I've a 2007 honda civic Low oil pressure can also lead to your timing chain to produce clicking or ticking sounds And BUT! They have been there from day one Sound: Whine, Growling It sounds very similar to the noise you get after you turn off the car and your car is cooling down Aug 13, 2005 Once the trans is put into gear, the engine will idle fine but as RPMs approach 1000 the engine starts to stumble, loose power, and begins to pop through the exhaust My 2003 Ford Windstar 6 cyl makes a “clicking” noise, but it doesn’t sound like it is metal Faulty Drive Pulleys If you hear clicking noises coming from your car, the most practical thing to do is check the oil level right away Discussion Starter · #1 · May 30, 2010 I checked the oil level, noticed it a little low, and added oil to it Correct by adjusting valve clearance, replace worn valve or lifter, regrind cam, replace valve guide and /or valve 6 The radio and everything work fine, but when i try to turn on the engine it makes clicking noise This is a scenario that requires immediate attention The rocker shaft bridge has excessive clearance which causes the rocker shaft to rotate and make noise Then, after about four minutes or more, it does a series of "knocking" or, to best describe it, sounds like movements of gears behind the dashboard The popping noise tells you something isn't #10 · Nov 17, 2010 Listen to these noises carefully and you should be able to identify the cause Could be an exhaust leak, rocker that is loose, or noisy fuel pump Bonus: FAQ It’s fairly loud at idle with the hood open so it’s hard to pinpoint where it’s coming from I think it has to be part of the normal operation of the vehicle Valve and hydraulic lifter noise has a clicking sound that usually quiets down as you raise the engine RPM’s This function can emit a normal ticking noise CV axles allow the car’s transmission to drive a car’s wheels and open up a range of motion with bearings

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