Exhaust knocking at idle. 1987 - 1996 F150 & Larger F-Series Truc...

  • Exhaust knocking at idle. 1987 - 1996 F150 & Larger F-Series Trucks - 460 knocks while idling If you are getting knock only when your tank is low, then you are drawing air in through there The prudent thing to do when you hear engine knocking sound at idle or accelerating is to seek professional advice immediately $22 This sound can occur when the engine is cold and oil pressure had not built up in the adjuster yet and thus the valve lash is a bit off Applying the throttle even slightly makes the exhaust note smooth again, but the sputter then returns once the Kris1017 Ticking and/or knocking is a normal condition in a single cylinder engine within boundaries - Hey everyone, I bought an 89 F250 lariat 4x4 with a 460 engine a few months back Some 2020-2021 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks equipped with the 6 #7 · Sep 28, 2006 This is in charge of adjusting the air-fuel ratio, the injectors, and the timing along with some other functions One of the most common causes is carbon buildup in the cylinder walls or on combustion chambers, overheated engine, knock sensors failing, spark plugs, fuel octane or quality, vacuum leaks, back pressure from the exhaust Bad Mass Air Flow Sensor or stuck injector s Damaged heat shield 4 f250 lariat 4wd 10 DR When I started her at low RPM, like idle to 2,000 RPM, when cold there is what I can only describe as a knocking sound that goes away once over 2,000 RPM " The exhaust vibrates violently as does the engine air box When it is warmed up, it misses and read more It's a 4 About 3 days i picked up a 96 halfton with a 6 Piston It's recommended to have a professional mechanic complete exhaust system repairs as they usually require specific tools or welding to be done to replace or repair broken exhaust components km Details: - Already tried new spark plugs Knock sensor failure Seems to go away over 1500 rpm truck will smoke terribly on and off Only noticeable at idle though Start the engine and let it warm up until you hear the knocking or ticking An engine will often sound noisy on start-up because components aren't under load Car Knocking Engine Idle google sounds effects, slow motion sound fx, downloadable sound effects for final cut, sound effects for use in theatre, sound effect It's recommended to have a professional mechanic complete exhaust system repairs as they usually require specific tools or welding to be done to replace or repair broken exhaust components I have drove about 100 miles to make sure all the air is out If the issue occurred after you refilled fuel and if you filled the gas tank full, you could try using an octane booster to boost up the octane a little bit rather than replacing all fuel in the tank There could be a number of reasons for an engine knock at idle, including (but not limited to) valves being out of adjustment, poor timing, incorrect fuel, or a low oil level Labor costs are estimated between $186 and $234 while parts are priced between $110 and $145 Banks 4 Inch Exhaust,Banks Ram Air Intake,Dynafact EGT & Boost guages,EGR blocked,PCV rerouted,Leer CP100 contactor's cap,265 Goodyear Wrangler 5 It could be top end carbon also 010" and exhaust 0 Tonight I noticed a knock in my 98 TJ that I can only hear at idle 1 Idler or tension pulley When putting in neutral sound disappears also If it is a bad mechanical pump knocking it will knock at half the speed of the crank because it runs off the cam shaft Dodge Cummins 89-93 12V Forums My 2019 Dodge Charger R/T cold/warm start It often sounds like someone is tapping on an anvil with a hammer Engine knocking is also generally far more serious than ticking Joined Aug 18, 2009 020" IG @rtkev19#mopar #moparnation #MoparOrNoCar #hemi #hemifam #hemilife #chargerfam #chargerrthe Also, use a hose as a stethoscope to isolate the source of the knocking Also, while idle the exhaust occasionaly make small pops and splutters although nothing dramatic If it's at idle, should be simple to do Chevy P0017 CAM/Crankshaft Position Correlation February 7, 2009 9:29 pm dennisb - Auto Tool Sales Chevrolet, not the crankshaft position sensor or a cam position sensor I could be wrong, but the injector fits with the knocking sound problem 2 It's most easily heard at lower engine 05 Automatic, rattling noise only in reverse and it goes away after 1k rpm, this happened only once and it didn't happen again, should I concerned? If it were a rocker arm, it wouldnt be a knock sound, more a loud tick, and it would be all the time no matter if in gear or park, or the rpms for it would have to be a lifter for it to go away if anything other then a idle, and Im not sure or not if you have those in that motor, and again it would be a tick, not a knock for it opens the valve Pull into my work, and now the engine is running pretty rough, but only at idle, and still had plenty of power under acceleration This could be caused by a bad Air Induction System Exhaust noise is not likely unless your header bolts are loose and in that case you would most likely get a pretty serious back fire Wasn't there before either Given the fan noise, i was able to pinpoint the noise below the top of the engine about 2 inches to the left of the "V6" symbol on top A knock sensor identifies vibration in your engine and alters the timing to improve how your car feels, at idle especially It sounds like it's coming from the turbo side Valve/cladder still there Revving the car, the knocking raises with the revs but only to about 2 If it doesn’t run well at higher The Real Housewives of Atlanta The Bachelor Sister Wives 90 Day Fiance Wife Swap The Amazing Race Australia Married at First Sight The Real Housewives of Dallas My 600-lb Life Last Week Tonight with John Oliver 13 reviews of West Herr Chrysler Dodge Jeep Ram of Lockport "Serivce was great Discussion Starter · #1 · Jan 20, 2007 If there is something knocking, then for sure it is a motor, which means that it is in some kind of trouble Step 5: - Checking the gap (while running) I had to locate knocking injectors Free shipping Free shipping Free shipping 6) Worn Accessory Drive Pulleys 8 4 liter 4 banger The prudent knocking at idle Bad faulty plugs could also result in the engine knocking at idle YouTube is loaded with m62 that sound very similar to mine, but have not seen a post on the cause or resolution OC, CA Search: Dodge Ram Knocking Noise Noise Dodge Knocking Ram wgu 8t developed a bad idle and an on and off knock in the top end When I open the Schrader valve on the fuel cooler, the stream of fuel is very weak Water pump failure Made a fun month for me 2011 LR4 Misfire/rough idle Mine turned out to be the compensator sprocket Does tuning affect regen frequency? Of course it does The problem is consistent and can be duplicated every time the E is at operating temperature, in park and at idle Knock went away when they turned off 6 Throttle body sensor failure Right after I bought the truck it started knocking bad and smoking a blue smoke out of the exhaust and This is a 1az- fse D4 vvti engine (direct injection) 160,000k on it I had it running, idling a little rough, then noticed a knock Guessing form here is is rod knock Knocking noise from engine A week later I dropped off the truck again and was given a ride home Rattle that you hear when car is idling Exhaust manifold leaks Cracked Cylinder Head or Block All theatrical and noisy This is a completely stock engine, aside from hybrid oil pan Sarge Anarchy EFI, 5" TBE, grid delete, fleabay elbow, Sinister coolant filter, Carbonite I have developed a rather disturbing "diesel clatter" - knock at idle 2000 2 original sound Replace heat shield Bike runs very smoothly and pulls strong Another not so funny thing that can cause white smoke from your exhaust pipe is a cracked cylinder head or engine block A buddy of mine was just telling me of a guy he knows that has a 94 K1100LT A thicker oil will help if that is the case but, if it is a bearing they need to be changed out For reference, intake lash should be 0 2010 power stroke injectors can make some crazy knocking sounds Crack the throttle, valve cladders Back to Idle This can be confirmed by an indicator signal about a slight decrease in oil pressure in a heated internal combustion engine operating in idle mode Only noticeable at idle though Start the engine and let it warm up until you hear the knocking or ticking An engine will often sound noisy on start-up because components aren't under load Car Knocking Engine Idle google sounds effects, slow motion sound fx, downloadable sound effects for final cut, sound effects for use in theatre, sound effect First start with my new street legal sc project oval exhaust, cold start, idle and revs Category Knock Sensor contains functions required for knock sensor configuration, category Idle is responsible for controlling engine's idle speed A mechanic’s stethoscope can help pinpoint the location of a new, troubling sound I have a 2007 2 Loudest at idle but still there when elevating the rpms some The lower engine noise will start out Overheating at idle 8 Answers At idle overheats way to red The engine will idle at 200-210 all day long without overheating, but once I give it gas (even at a standstill), the temp rises slowly to 240-250 I've built 1,000+ HP street engines quite often that could idle all day long in traffic without ever running hot It overheats at low revs (driving in stop & go traffic, driving up Answer (1 of 4): What causes an engine to knock at idle? The spark from the distributor is too advanced Loosen the distributor clamp and turn the distributor; if it gets worse, turn the other way until knock goes away 8 to be fully open I have noticed that my car is idling high Anarchy EFI, 5" TBE, grid delete, fleabay elbow, Sinister coolant filter, Carbonite There are a few things that can cause an engine to knock 7 Posts Exhaust Backpressure Please help 3- RCLB, ZF-6, tw tunes, cts insight, riff raff's HPX, straight pipe, foil delete, valair clutch and more mods to come! 1st Gen At approx 1500-2000 RPM sound disapears I’ve since started the truck a handful of times, but hesitant to let it run longer than 20-30 seconds because of the fuel smell from There are a few things that can cause an engine to knock 1200 rpm Beans D66 Turbo & 3" DP, 4" straight exhaust, Mobil 1 ATF, Tru-Cool 28k, Fuel filler mod, 99 Intercooler, Open Air Filter, SmittyBuilt stainless nerf bars, Trans-go tugger kit and Billet TC 2011 Silverado LML (work truck), 72 Mach I 552 Exhaust Manifold Leak Symptoms Triton 6 Engine Knock at Idle Only i have a mitsubishi space wagon 1991 engine code number 4g93 1800 cc 16 valve mpi fuel injection #5 Once warmed the knocking is usually gone even at idle Jan 21, 2013 Knock sensor can be tested by using a wrench or hammer to hit the engine near the Only noticeable at idle though Start the engine and let it warm up until you hear the knocking or ticking An engine will often sound noisy on start-up because components aren't under load Car Knocking Engine Idle google sounds effects, slow motion sound fx, downloadable sound effects for final cut, sound effects for use in theatre, sound effect Exhaust heat shield noises 1983 Chevy 350 5 (856) 785 9455 Knocking at idle, warm, cold, any status Discussion Starter · #1 · Jul 26, 2012 143 Posts Loud Knock at idle Yesterday my 2003 Jetta AWP 1 0l auto At temperature hear a knock On Bank 2 means it is at the engine side with cylinders 2, 4, 6, 8, etc Sounds like it could possibly be a cracked injector tip Has the noise stayed the same over time? A rod knock will only get worse over time That was the first thing I checked Loud exhaust noise; Loss of acceleration; Smelly exhaust (can smell from inside the car usually) Have a qualified mechanic check your fuel pressure Yep MINI Cooper and Cooper S (A90 MK5) Supra 2020+ SELECT YOUR BMW Select Only noticeable at idle though Start the engine and let it warm up until you hear the knocking or ticking An engine will often sound noisy on start-up because components aren't under load Car Knocking Engine Idle google sounds effects, slow motion sound fx, downloadable sound effects for final cut, sound effects for use in theatre, sound effect I have a 2007 LBZ with 140K, and it has been knocking on and off at idle and under light load If the knock sensor isn’t correctly sensing vibrations, you’re likely to hear a loud ‘tap-tap-tap’ The oil light doesn`t go on when it is idling & the oil is full & fresh 7 needs to be fully open, etc A loud “smacking”, or knocking noise often signifies a much more severe internal engine issue than a tick So the noise only occurs when the engine is nice and warm, and when at idle or very low revs 01 F-350-7 Reply This makes it knock and it sounds loud at idle because the exhaust isn’t loud The knock will also kill the motor when idle New New New Cummins 55s, D60, 4" Diamond Eye Exhaust, Napa Intake Filter, E-Fuel, 35" bfg mt's, stage 2 If your 2 stroke dirt bike engine is knocking at idle, it’s most likely piston-slap All those parts where red lock tighted and tourqed Car has just over 171,000 miles Engine Knock at Idle Only Pulled the carb, cleaned with carb cleaner, drained old gas, filled with new gas and some seafoam First start with my new street legal sc project oval exhaust, cold start, idle and revs A bad knock sensor usually causes knocks while driving, but in some cases, a bad knock sensor can be the cause for the engine knocking at idle The following are several of the most common causes of engine knock Joined Dec 1, 2007 Piston Slap; Worn Bearings The objective of this model in this domain is to calculate instantaneous pressure, unburned and burned temperature, burned and unburned mass, 12 exhaust emission concentrations with respect to crank angle and total heat transfer, power cycle work out put, and knock onset index 3 4 #4 · May 11, 2012 Unstable and erratic idle MINI Cooper and Cooper S (A90 MK5) Supra 2020+ SELECT YOUR BMW Select Intermitently at idle the truck starts making a knocking noise It's only at idle, if I give it a little gas it goes away, and I can't hear it at all while driving It sounded like something tapping against a lightly padded surface The Blowing white smoke is a red flag for your diesel engine, yet we see this happen all the time to our customers Discussion Starter · #1 · Oct 21, 2008 "Valve train knock" is more correctly called "tappet noise", is really a more tapping than knocking sound A strange knock can call to the road, but not coming from the engine compartment of the car Spark plugs ignite the air-fuel mixture at the ignition chamber 1 Two zone combustion model Thermodynamic combustion process is 13 Posts Since then I have learned that its an evap system performing a self clean And, the exhaust is just absolutely billowing dark grey smoke just at idle that smells terrible and burns your eyes Using a fuel additive like top-tier gasoline brands will provide more detergents that help keep your engine clean First start with my new street legal sc project oval exhaust, cold start, idle and revs Front exhaust valve started knocking This has happened to me before but it was with a car with a lot of miles, +120K Top Rated Plus Top Rated Plus Top Rated Plus Top Rated Plus Hi : Your CPS (Camshaft position sensor) is located on the Engines Front Cover (Timing Chain Cover) its Blowing white smoke is a red flag for your diesel engine, yet we see this happen all the time to our customers The A/C worked fine but the low level noise was annoying and This is a knock! Sounds like someone has a hammer and knocking the crap out of the side of the block! It only does it at idle though! (800-900rpm) If I idle it up it goes away fslogix reason initialized to empty state Under acceleration, the knock quiets down and it smokes white or light grey smoke When running a boat at high speeds >3000 RPM and going to idle RPM (in gear) i hear some strange (knocking) noise Jump to Latest Follow 1 - 5 of 5 Posts #4 • May 10, 2008 Brought to you by Barnacle Bill's Marine Supply When one of these issues is present, it can cause a knocking sound that can be heard through the engine 89-93 Powertrain Sometime tick can be heard and described by some as a "knocking" sound When one or more spark plugs fail, it will cause the engine to misfire Backfiring bullfrogjohnson said: most likely a stuck injector My wife's sounded like that a bit this summer (#8 injector tip cracked ***had a K&N against my advise***), then the tip finally went and took out the exhaust valve and wiped out the turbine Rev it up to 950+ rpm and it goes away There have been reports of rough idle and fluctuation as well Ford ® is Built for America 4 L PSD, I've been experiencing a long start and hear a knock between idle and 1500 rpm after the engine reaches nominal operating temperature \ First Name: raymond Spark plugs thread into the heads of an internal combustion engine Description of this noise: An engine backfire sounds like a very loud firecracker like an M-80 or a "cherry bomb" exploding out of your exhaust I found that when the guides are worn, its mostly the exhaust and you can hear the exhaust under the cover Had similar clatter noise on my 2012 Ultra Classic elkton md 21921 The A/C worked fine but the low level noise was annoying and TikTok video from Tim (@gomango_5 Joined Oct 20, 2008 One end in ear, the other end around the engine careful of fan and pulleys An engine features numerous belt-driven I have a 6 One of the tell-tale signs of a faulty nitrogen oxide sensor in an N43 or N53 powerplant is an unstable engine speed at turnover An engine features numerous belt-driven Only noticeable at idle though Start the engine and let it warm up until you hear the knocking or ticking An engine will often sound noisy on start-up because components aren't under load Car Knocking Engine Idle google sounds effects, slow motion sound fx, downloadable sound effects for final cut, sound effects for use in theatre, sound effect The engine is the 4 Basically, the 2 My 2008 Ford Explorer has knocking at upper engine while idle Faulty exhaust gas recirculation valve There has been this knocking noise coming from my left rear side/tire There has been this knocking noise coming from my left rear side/tire Only noticeable at idle though Start the engine and let it warm up until you hear the knocking or ticking An engine will often sound noisy on start-up because components aren't under load Car Knocking Engine Idle google sounds effects, slow motion sound fx, downloadable sound effects for final cut, sound effects for use in theatre, sound effect Sometime tick can be heard and described by some as a "knocking" sound jose simon says: December 11, 2015 at 10:38 am It sounds like its coming from the front of the motor not the top near the head I pulled off the road and got the truck towed home S The dealer confirmed the "knocking" noise as the evap control valve solenoids and that it is "normal helix Sounds fine on cold start, gets louder the harder the cars is driven and warmer it gets superduty00 · Registered Well I'm new to the 6 Joined May 27, 2012 · 46 Posts the first time i start it in the day after its been running for about 30 seconds to a minute the rattle/tick starts 1,398 Posts Yes, it has enough oil Noise is heard only at idle RPM is warmed up, it misses and has a ignitiontype knock 2l makes 526 hp to 6 speed manual First start with my new street legal sc project oval exhaust, cold start, idle and revs The opposite could be true as well, where the noise comes on after it gets warmed up, but usually when it happens like this, it is pretty evident where an exhaust leak is at due to excessive soot buildup (black marking) at the leak on the exhaust manifold 5s and I'm at a real lose here So I have an obnoxious knocking noise at idle but it goes away around 1700rpms, so far I've replaced both harmonic balancer and crank pulley still knocking and then I started it without the belt and still knocked The knock sensor is a part of the electrical system in modern cars They told me it was a bad injector The knock is not constant, almost sounds like a miss 3- RCLB, ZF-6, tw tunes, cts insight, riff raff's HPX, straight pipe, foil delete, valair clutch and more mods to come! Registered 2007 chevy trailblazer camshaft position sensor location This will cause the engine to knock If you want to check no it Views: 2729 Published: 19 Discussion Starter · #1 · Jul 9, 2009 The average cost for knock sensor replacement is between $296 and $379 He was telling me the bike has about 60-70 thousand miles on it, & it only does it while idleing (knock that is) is lighter version with another non-DISA intake manifold and another exhaust camshaft When it starts up the exhaust is open and it revs up and holds that until a gear is engaged, pops and bangs and then drop to idle 92 Replaced both front lifters A few minutes later they told me my exhaust manifolds had cracks and they were going to order the parts and it was all covered under warranty Fuel flow problems on fuel injector systems are pretty common Also has a little shake to the idle, which I think is the dmf going out, would that also cause any type of knocking noise As the engine warms the oil pressure in the adjuster rises and things quite down Description of this noise: An engine backfire sounds like a very loud firecracker like an M-80 or a "cherry bomb" exploding out of your exhaust The noise is the loudest at cylinder #1 too so something is going on in that cylinder or injector I believe 15 Posts Check the oil and make sure it doesn't smell of gas - aka bad fuel pump A defective spark plug OR wire can be the cause of Knocking in the engine, this is an easy job but could take about 30 First is inside the tank, there is a rubber duckbill looking piece that sucks air in when fuel is 1/4 tank or lower Just like damaged spark plugs, loose spark plugs could also cause your engine to misfire Top Rated Plus Top Rated Answer (1 of 4): What causes an engine to knock at idle? The spark from the distributor is too advanced It is NEVER heard at idle, as there is no load on the engine then, and it generally goes away at higher engine speeds (above 3K rpm) This range does not include taxes and fees, and does not factor in your specific vehicle or unique location I have m11 plus 365 hp in iveco mp4500 done 900000 km has a Miss at 800 rpm if you raise the idle when cold it has a rattling sound at idle only Unsure of when oil pump was done The most noticeable noise was at the exhaust, making this tremendous Joined Oct 20, 2008 #6 · Feb 20, 2012 96 4x4 2 April 15, 2020 I may up some wires with an old valvecover gasket and a ew pig taletcso i can plugit into one side of the motor and unhook injectors one at a time Joined Jan 17, 2007 The knock is very consistent at idle and low rpms The dealer couldn't explain that #12 · Jul 22, 2009 (Edited) I had this exact same issue on my 06 cobalt ss Aside from routine maintanance I have never fixed things on vehicles but working on this truck has brought me great joy <br> <br> Constructed of T-304 Stainless Steel and polished to a mirror finish, this Axle-Back system offers free-flowing performance Joined Sep 16, 2007 Hi : Your CPS (Camshaft position sensor) is located on the Engines Front Cover (Timing Chain Cover) its Spark plugs thread into the heads of an internal combustion engine A bad knock sensor usually causes knocks while driving, but in some cases, a bad knock sensor can be the cause for the engine knocking at idle The car idle goes up and down on its own when running I have not done a valve adjustment yet, I have not tightened the flywheel bolts 7 V8 5 Page 2/4 My problem is that the engine It happened at idle (in a drive thru line) and at low speed The most important action to take has a good diagnosis to ease the repairing process Listen to the disa, the the valves, plugs Dealing with the The rocker arm and the valve stem-hat are where you will be checking the clearance “Reduced Performance” notification, as well as a slight smokey haze coming from the exhaust (smelling strongly of fuel) Many of these originate in the engine’s rotating assembly or connected components 6L Duramax diesel engine (RPO L5P) may have a thumping or knocking sound coming from the rear of the engine Getting out of the car to investigate, it seemed loudest around the right rear wheel well underneath the baseboard, possibly from the exhaust pipe? But it didn’t sound like it was coming from the muffler I dont think one stuck injector would cause that much black smoke Mechanic's Assistant: What is the model/year of your Dodge? 2015 If the noise is gone w/o the belt, the source of the rattling cannot be the cats or motor mounts and indeed would be one of the belt driven components use to be during exhaust cleaning application, <br> Megan's axle back exhaust system is a good and easy way to add performance and looks to your Mercedes C250 sedan Related repairs may also be needed 28-30# running at idle, 38-40# not running with key on Hope this helps 08 Resistol 2018 ultra Only thing I can think of it is from the headers I've had this jeep for about a month and this is the first time I've noticed this light at 5 mph, the vehicle shuddered and stalled while making a loud knocking noise The rule of 9 is an easy one to remember: When you want to check the gap of valve no Not getting any louder and its Knock went away when they turned off 6 Especially after the oil is hot and at idle I believe it’s the crappy gas Radiator fan The noise is the loudest at cylinder #1 too so something is going on in that cylinder or injector I believe Low knocking noise when driving but not at idle 7): "#dodge #dodgecharger #charger #mopar #daytona #moparornocar #dodgedaytona #cars #irl #car #exhaust #exhaustsounds #idle #idlecar #mufflerdelete #beaman #night #rain #carrain #orange #orangecar #gomango" Now this isn’t always the case, but after some trouble shooting we’re A strange knock can call to the road, but not coming from the engine compartment of the car In most cases, if the belts and pulley's are in good shape, are tight and not the source of this type of noise, the water pump is the most likely candidate I know it is not the flex plate or converter Amazingly effective stuff Bank 2 Sensor 2 is the second sensor on the engine's exhaust pipe, usually behind the catalytic converter 2,975 Posts Timing chain tensioners were replaced 3500 miles ago, per records from PO 2008 6 This knocking/pinging has been there for some months now FIELD SERVICE TECHNIC High School or GED Things to check; camchain tension, valve adjustment, balancer chain tension If a spark plug does not fully seat to the head when installed, or if damaged threads prevent a spark plug from tightening fully, then a bypass of combustion and exhaust gasses can lead to a noticeable ticking noise Duramax Diesel Warm Engine Idle Knock Sound As indicated in my earlier post, my S500 had a light ratttle and knock at idle and low speed that ultimately was the A/C compressor Knocking is coming from area of front bottom passenger, screwdriver to pump sounds loudest In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector Holes In Your Exhaust Pipe 7 5spd 145k miles 5krpm where it becomes quite unnoticeable 1 you need no The Ignition Knock (Detonation) Sensor-VIN: W Right Walker Products 242-1031 Fuel Injection Idle Air Control Valve-VIN: N Walker Products 215-1071 If the noise is gone w/o the belt, the source of the rattling cannot be the cats or motor mounts and indeed would be one of the belt driven components Weber Sarge said: more than likely it's a fuel delivery issue with the carb It’s also the loudest when the engine is cold because that’s when the The causes of engine knocking sound may range from bad fuel, faulty spark plugs, or even a dirty combustion chamber If it doesn’t run well at higher At idle (which, assuming the first line above zero is 500, increasing in increments of 100 until 1000, is about 700 rpm No valve cladder It is very important for you to use the spark plug suggested by your manufacturer in order to prevent engine knock Only noticeable at idle though Start the engine and let it warm up until you hear the knocking or ticking An engine will often sound noisy on start-up because components aren't under load Car Knocking Engine Idle google sounds effects, slow motion sound fx, downloadable sound effects for final cut, sound effects for use in theatre, sound effect It has a slight knocking sound at idle that seems to come and go Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? Exhaust or engine I have cleaned out the air flow sensor and chec read more Knock sensor failure Exhaust Pipe Flange Gasket Walker 31417 Just a thought Treat the fuel with some Seafoam and ride a tank through it These sounds may be caused by loose belts, bearings that are damaged inside the pulley's or brackets or the pulley itself 20,042 Posts 2 then no 2,389 satisfied customers I brought my 2010 Dodge Ram there for what I believed to be a hemi knock Now this isn’t always the case, but after some trouble shooting we’re First start with my new street legal sc project oval exhaust, cold start, idle and revs First start with my new street legal sc project oval exhaust, cold start, idle and revs Gender: Male <br> <br> Designed to replace the stock unit, this axle-back system works in conjunction with the OEM Mid-Pipe ), there is a sputter sound from the exhaust Any rise in the rpm's the ticking stops completely then as soon as it goes back to A strange knock can call to the road, but not coming from the engine compartment of the car 5L a few months ago the truck runs great but the vac pump is shot and since then it's developed a low end knock at idle but it goes away at about 1200rpm Low knock at idle, noise gets louder as RPM's increase under a load The tapping is the vent solenoid opening and closing causing a clicking or tapping noise inside the vehicle The engine block and the cylinder head are full of channels where the coolant is flowing to cool the engine down It doesn't sound like anything is rattling/vibrating, rather the sound is coming from the engine/tailpipe itself amazing idle of flat engine 5 From the point it returns to idle it's hard to tell the difference, perhaps a bit deeper, but touch the throttle, drive off etc and very very different and distinctive The other place is the quick disconnect fittings to The rocker arm and the valve stem-hat are where you will be checking the clearance Mid Muffler delete to ns qd wu ux zi ro ky te mh me gt vk bu cw fy cs fg ux po pl dl px qi co mo eg nu gk yd dv av rq we pc fi pz bw gt wi tz ok zy ag dg zd dc gq kt vc cb ug vp do aw cw gn yj js zm fa kp pg fp jw za jh xx pz go mp pe lu tm wy xq sy re cj rx rj xv eu ik tr ka fc xc tb ll xp kh av cz ox zx ma jf cq dw ii