Whining Noise From Engine At Idle

A couple of weeks ago, a whining noise started coming from the front driver's side of the engine. I got another opinion from another shop that said the whining noise was coming from the alternator so I also replaced the alternator. I replaced the serpentine belt and the tensioner thinking that was the problembut didn't help. Join the thousands of Powerstroke, Duramax, and Cummins diesel truck owners. Ranger & B-Series - Whining Noise in Engine at Slow Idle - 1995 Ford Ranger 3. The biggest worry was a high pitched whine while at full idle. Most vehicle’s engines will idle at our below one thousand RPMs. I have good oil PSI and have never gotten the dreaded "check oil warning" The weirdest part is that it did this with my stock oil pump and the aftermarket. Look for a high engine idle. IF YOU CONFIRM. My Bravada has 114,000 miles on it and have never had trouble like you have experienced. Whining noise from engine bay. I think that was the reason why I couldn't hear that when the engine was cold (higher idle). Note the oil pressure as it may read 1 to 2 PSI less than step 2. The noise is a common problem, with Mercedes Benz E-Class, S-Class, C-Class and ML-Class and it is most noticeable when you first start up the car. or the milky colour comes from the residue of an engine oil. But because it is twice the size of what an outboard engine ought to be, it does make an impressive impact with its whisper-quiet idle. It comes on about 10 seconds after starting, is worse when the engine is cold and is independent of revs except it seems to go above 1500 rpm. the other day, I turned on my truck and a wierd whining noise came on. I noticed that when my tranny is around 150 degrees or hotter, when I'm at a stop light in drive, I can hear a faint whine/whistle sound. OP, For PS, turn the wheel while stopped fully left and the right. Any ideas? I have a video clip of the sound. This all started after I had my car. They ordered a new turbo for it. 7 whine at idle Well, it's done it since new, always assumed the 6. Re: High pitched whine at idle A friend of mine has a 98 Jetta TDI that has a loud turbocharger whine. at low speeds, you can hear it really well and only because road noise drowns it out can you not hear it at high speeds. is there a common problem or no? mainly though whats the whining. 93 while add. It is present during idle and acceleration. If someone tries to tell you that the E-TEC is just as quiet at idle as a VERADO [I-6], do not believe them. Not a very strong one, in fact my wife can't hear it but I definitely do. If your engine has an inner cooler, then the noise will be intensified. Very accurate and informative. It comes on about 10 seconds after starting, is worse when the engine is cold and is independent of revs except it seems to go above 1500 rpm. As soon as I'm driving, the whine stops; whine will occur both in drive (but stopped) and in park. The noise increases and gets more high pitched with increasing rpms. Sounds like a high pitch whistle. See all problems of the 2008 Mazda CX-7. The sound is non-existent at idle. so try to drain the water coolant. On the way home it started making a whistling/whining noise. Apparently it starts after the engine or bearing warms up. I have had my 2008 Enclave for about 1. As I suspected, the noise was coming from the front of the engine. I would guess noisy pulley if it didn't do it before the idler swap. When I pull into the garage/parking spot/stop sign etc, I can hear it. Is this normal? It only does it in drive, only at a complete stop, and only when it has some heat in it. Re: High pitched whine at idle I first noticed this when I got my first TDI, This noise is the turbine spinning at idle. Does not happen at idle. 3L, 90000miles) started making strange noise in idle and low RPM. This is my first sound mod. Why does it do. I am getting a whine from the engine compartment, accompanied by a rough idle. Re: 07 Whining Noise/Sound & High Idle RPM? My 07 makes a whinning noise (sounds like supercharger whine). Note the oil pressure as it may read 1 to 2 PSI less than step 2. it is possible that you are sucking air at the o ring on the primary fuel filter on the frame rail. The other thing to do is to find out if it's the engine or gearcase side that's squeeling. Hi i have a 97 gsi and the last time i took it out i noticed is has started to to idle rough. Of course, the engine control unit communicates with the idle air control valve. Alan did in fact write a nice article. My engine runs smoothly whether it's a cold morning start or after it has warmed up. Appearance: Cycle the tensioner (mounted on the engine) through the entire range of motion (from stop to stop) by applying torque to the arm with a wrench. After allowing to dry, replace the IAC and start your truck. The idle air control valve manages the amount of air which flows into your engine. a fast idle used to accelerate bringing the engine up to. Had [email protected] diesel say that sound is not normal. It almost sounds like the belt is loose. My x has a really loud high pitched whining noise that is only present when the engine isn't at idle. At first we thought it was the air conditioning compressor which is giving trouble, but it does it when the air is off too. Of course, the engine control unit communicates with the idle air control valve. Before it dies, at around 2000 RPM, there is a whining noise. Just got engine idle whine looked at by dealer. No the whine is constantly on when I'm driving. I've attached a video for reference. I tried to check by being at idle RPM: 1. You should allow the engine to warm up for a few minutes and the computer will re-learn how much air to allow into the engine at idle. NO engine/performance mods. Sometimes if you're sitting at an idle and tap the gas, the motor will idle slightly higher, and the whine dissapears. I have the whining noise from the engine that gets higher as you rev the engine, whether in idle or driving. Could the increase in engine load be exposing the weakness in my timing chain tensioner? I have a 1998 528i with 106K, BTW. I noticed lately that when my 2000 XLT Ford Expedition is at idle standing still I can hear a whining noise from the engine bay. 9 I have a whining noise coming from the area behind the alternator on the driver side of the engine. My 94 cougar has this problem. Probably the most important thing you can do for your Insight: Idle Relearn! Unplug the 12v battery, Idle relearn. I have a 1991 Chevy S-10 2WD p/u. I just can't pin point it because it doesn't always do it. That would probably be an EPC circuit failure. Land Rover Noises: Does that sound right? If the noise is from the engine, On idle, when you change gear, when you depress the clutch or turn the steering. If you decelerate slightly the whine is there but quieter. I can make it go away by gunning the engine a bit (in park). I replaced the serpentine belt and the tensioner thinking that was the problembut didn't help. whenever my engine (V8 305) is reving there is a whinging noise in the engine. Took off the cap and loosened the fork bolts to move the tree up so that I could get to the star nut and adjust the fall away and noticed there was already a gap between the tree and the column tube. It's heard at different engine speeds, at idle and during warm startup. At idle and acceleration, engine makes whining noise. One of the most common glitches on the BMW E30 3 Series is an erratic engine idle. Some engine belts only squeak after you go through a large puddle or if there is heavy moisture in the air, and others squeak constantly. It goes away as soon as I start rolling. If the Whining or groaning corresponds with the wheel/tire movement than its probably it. An easy way to find one of these faulty PCV valves is to pinch off the supply line to the PCV valve with a pair of pliers while the engine is at idle. Issue Some vehicles may exhibit diagnostic trouble codes (DTCs) P0505, P0506 and/or engine idle RPM fluctuation and hard starts. In these models, you can remove the engine oil dipstick and seal the dipstick tube opening with a piece of tape. oh yea my check engine light is on. Engine whine Discussion in '3rd Gen Tundras (2014+)' started by Alloutdrs1, At idle there isn't much whine, just under acceleration pretty much. If this is the case, the whine sound may be heard. Whining noise from my f150 Lately i've started to notice that my f150 has been making a "whining" noise. ; Vehicle is a SRT8 WK or LX. Re: 07 Whining Noise/Sound & High Idle RPM? My 07 makes a whinning noise (sounds like supercharger whine). If not, then look at the water pump, alternator, belt tensioner and idle pulley. An intermittent growl or roar is present from the supercharger at any RPM: That only occurs until the engine has reached operating temperature. The whistle/whine does come from the engine compartment, but I ruled out the IAC a while back. Got any Questions?. then toward the end of the day i noticed at idle and low speed i could hear a whining noise that with rpm pitch increased. I have confirmed its coming from the left side of the engine (when facing the engine from the front of the car). Stumble or miss at operating speed - The ECT and IAT sensors must be accurate or the injection timing will be wrong. if I accelerate i dont hear it if it is idle i dont hear it, but if I am slowing down lets say 10 - 15 miles especially in traffic I can hear it - the sound is like the tuppets inside the engine. Learn about this problem, why it occurs, and how to fix it. model 2011-2013 f super duty. My engine runs smoothly whether it's a cold morning start or after it has warmed up. -made small changes to exhaust idle and supercharger whine. I've complained to the dealer about my A/T whine in my 07 accord for some time now. It is most prominent when I am doing a base idle set and the rpm is below 800 and sounds like a whining dog. 1997 Honda Accord Engine Whine while idling How To Solve Honda Idle Problems How to repair, fix, stop Honda, Acura power steering whining noise. To narrow the possible causes. When I move the steering wheel the noise becomes a bit unsteady but not louder. Everything works perfectly but I have noticed a very slight engine whine that correlates with engine RPM. I can only really hear it from within the cab of the truck. Variables such as transmission wear, engine smoothness, condition of engine and transmission mounts, drag from other accessories, and exact idle speed can cause significant variation. I've only had the bike for 400 miles (bought it from a Harley dealership). Hi all, My BMW E92 330i N53 with 156,000 miles makes a high pitched whine from the engine bay when engine is warm. I noticed that when my tranny is around 150 degrees or hotter, when I'm at a stop light in drive, I can hear a faint whine/whistle sound. Its the differential mostly, but in some cases i feel that the pump is making noise. The only way I can describe it is it sounds like a supercharger. Q: I own an older vehicle with higher mileage. Stumble or miss at operating speed - The ECT and IAT sensors must be accurate or the injection timing will be wrong. 5T with 800miles. Find descriptive alternatives for whine. whine coming from front of engine 02-06-2012, 10:29 AM OK, so driving home from visiting a mate last night and heard what I thought was an emergency services vehicle siren. Also, a mechanics' stethoscope can help you pinpoint the noises (provided you can re-create at idle). When letting off the brake and letting the car cost, say 2mph the noise fades out and everything is back to normal. I went to the dealer the first time and they stated nothing could be found and it was normal. Engine damage is one of the worst-case scenarios of alternator trouble and it is definitely a possibility, but it's so difficult and inconvenient to keep a car going with a bad alternator that you'll probably get it fixed long before it causes damage to your engine. BMW E30 3 Series Idle Speed Troubleshooting. Download Whine Idle Engine sounds 838 stock sound clips starting at $2. whining noise from engine Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. Why does my car idle loudly but drives fine? I read through your comments and I have to say first that any time your car is making an unusually loud sound, turning up the radio is the worst way to address it. This noise should not occur unless the oil pan contains an AFM relief valve. If you have a decent flow leave the hose disconnected and let the engine idle for at least 30 minutes. it is a constant whine that sounds like a bearing and does not change pitch or speed up or slow down until you turn the engine off and at that exact point it sounds like it is releasing pressure from the side of the engine. The vehicle didn't have to be in gear to make it happen. Do you think I have a problem with an oil pump or could I try going with a thicker oil?. It is what tells the valve when to open or close, resulting in more or less air flowing to the engine. Then place a thin piece of cardboard over the opening. The technician looked at it and said it's normal from the electric power steering's pump. Q: / recently purchased a used, one-owner 2007 Yamaha Royal Star Venture with the 1,300cc V-4 engine, still under factory warranty with 7,000 miles on it, I discovered (only after I brought it home and began to ride it) that as the engine speed increases there is an annoying "whine" to the. If set too high, when shifting from neutral to drive or reverse, the engagement will be too abrupt, causing not only driver discomfort, but also affecting the components of the transmission as well. Does not happen at idle. I do not think it is related to accessories since I do not hear anything while idling. I replaced the serpentine belt and the tensioner thinking that was the problembut didn't help. Since then,I came across 2 other new qx with the same issues. I bought it new with 5miles on it. This noise was heard when I was in autostick in 1st and 2nd gear around 2,000-2,500 rpms. It happens at idle when truck is in any gear selected P N D Rwhen you tap the accelerator it goeas away. 5/29/2018 1/1/0001 Whining noise when acclerate the engine just replace the 4/8/2018 1/1/0001; Whining noise from under rear of car when running. guys, ive had a whining noise for a while now, does it more and louder on idle, when the revs are high then dop down, when they drop down the noise isnt there on idle only when accelerating, the noise goes when hard accelerating but is there on low revs any ideas, noticed it more recently on the idle tickover than it was before?. If you hear a ticking noise, it could be that high pressure exhaust is escaping a crack that has formed in the manifold. it is quite loud and. Re: Whining noise on idle? I was gonna say water pump, but you have the answer all ready. It almost sounds like the belt is loose. Hi all, What is this engine noise that only happens while accelerating on my 2013 Ford Escape? About 91k miles on it. It is what tells the valve when to open or close, resulting in more or less air flowing to the engine. Now no better than 10-11 MPG when I used to manage 15-16. I've noticed there is a high pitch whining noise that is present during idle and at low speeds, coming from the engine bay. Does not happen at idle. well bud i had a similar thing happen to a dodge i had it was an 04 1500 and it turned out that it was a setting that i deleted by accident. Has anybody had that problem yet?. I have the whining noise from the engine that gets higher as you rev the engine, whether in idle or driving. I have been chasing this problem for several months, and it was getting so my bike wasn't fun to ride anymore, as the engine noise seemed louder than my exhaust, especially when I have the windshield on, it tends to amplify all the sounds coming from the engine. It is most prominent when I am doing a base idle set and the rpm is below 800 and sounds like a whining dog. Did you replace the stock upper pulley to the 2. Check our Engine emits white/blue smoke while running FAQ for assistance. Why does car whine when accelerating or idling? - While driving on acceleration or idling my car whines. 7l they've seen with a turbo going out. I believe it would be the AC compressor but am not sure. Hey guys, question for you. Re: 98 Volvo 7. One of the most common glitches on the BMW E30 3 Series is an erratic engine idle. The issue I am having is that the idle is not consistent when warm. I've read people with the similar noise saying it is a bearing or belt but I find that hard to beleive in my case. 1998 Deville - whine noise coming from the front passenger side belt and pulley area, replaced the PS pump as it sounded just like a defective pump, however still whine noise that varies with RPM. This all started after I had my car. sounds like the same problemdirected to this thread. I noticed the other day I had a whining noise from underneath my truck. Say its the first 15+ 6. As you increase the rpm's the noise is louder. I am new to Scouts and wonder if this is normal? On Harleys I ignore all noises and that worked fine for decades. It sounded more like an electrical whine than mechanical/bearing noise. Before it dies, at around 2000 RPM, there is a whining noise. Once it warmed and the idle came down, it stopped. When there is a deep knocking noise coming from within the engine toward the bottom it means there is a broken piston, seized wrist pin, rod bearing or crankshaft bearing that has worn or gone bad. How to Stop a Power Steering Pump With a Whining Noise by Chris Stevenson Of all the components or parts on the automobile engine, the power steering pump will be the part most likely to announce warning signs of its poor operation or failure with some very demonstrative sounds. Everything works perfectly but I have noticed a very slight engine whine that correlates with engine RPM. A bad dual-mass flywheel with a failing damper will sound like a diesel truck engine at idle or a clacking noise. Started the car up yesterday and again this morning. When an engines running in the water with a gearcase problem it’s hard to tell because the noise comes right up the midsection. Note that the sprung-hub design is usually very successful, but not an absolute guarantee of rattle-free operation. At this point, I figure the check engine light should be on. Have you noticed that the idle seems to surge constantly? Does it constantly move between 800 and 1800 RPM? Does the idle stay steady at 1800 RPM?. The idle stays constant at 700ish rpm regardless of how rough it is. This is common on the flat 6 engine due to the straight cut gears in the transmission. The sound is non-existent at idle. Allpar Forums. Every morning I start my car when I warm it up it seems to slowly go down which is normal. Find descriptive alternatives for whine. I'm experiencing a whining noise in my engine at idle. I recently noticed a constant whining noises coming from the engine when the car is at the Idle & also 1500~2300ish RPM range *Definitely not coming from the wheel* It happens for both acceleration/deceleration RPM seating in the range between 1500~2200 RPM. On cold start while engine at high idle there is a loud whine which goes away when engine comes down to normal idle - Answered by a verified Cadillac Mechanic. Taking off oil cap will stop high pitch noise. I have a 2000 Ranger with the 4,o motor and 4x4 auto with overdrive. The average vehicle owner can find and repair such problems by knowing what circuits and components control the idle quality. It happened when I was idle, and is. Is a high pitched whistling sound at idle a vacuum leak or what? My vt750c recently began to whistle loudly at idle when fully warmed up. A transmission can prompt a whining noise if the operating system has malfunctioned, the gears are not operating correctly or the transmission fluid needs to be changed. When the engine warms up after 15-20 min the whine goes away. This engine has a history of valve ticking at idle which can be categorized by the thousand of complaints as being normal by the manufacturer. Mine drove me crazy until someone else suggested i lube it and voila. At first we thought it was the air conditioning compressor which is giving trouble, but it does it when the air is off too. Loud engine and low oil - Simple cause and effect? but didn't get very far before my engine suddenly went up a few decibels. When I rev up (car stationary), the whine is still there; sounds like it is coming from the centre top of the engine. OM606 whine noise at idle in gear I noticed it by waiting at a stop light in NY and I hear this odd loud whine, like a power steering pump being strained is the best I can explain. It goes away as soon as I start rolling. My x has a really loud high pitched whining noise that is only present when the engine isn't at idle. My thinking it would solve the whine/whistle because it's fully adjustable to work on any engine without having to piece something together. End codes came up P0022 and P0342. The whining noise mostly arises due to a loose power steering belt. After running the engine at idle for about 15 minutes, the lifter noise went away for the most part. Can it be avoided? Cavitation problems must be split into two categories. Transmission issues are the primary suspect when your car is making a whining noise. I have a sort of whining noise in the engine bay in the vicinity of the alternator, water pump, power steering pump. On cold start while engine at high idle there is a loud whine which goes away when engine comes down to normal idle - Answered by a verified Cadillac Mechanic. by Duane Ausherman. That would probably be an EPC circuit failure. The noise increases and gets more high pitched with increasing rpms. Posted by Anonymous on Jul 18, 2014. why??? because the engine has a interior noise up high!!!! so, till i get it out,rering it, and put new rod bearings in,ill idle it. It begins to run efficiently and the metered amount of fuel coming from the idle circuit is enough to sustain an idle. I cant tell if it reflecting from the center pulley or truly coming from inside the cover. Persisting engine noises that are present while the engine is idle can include: Try adjusting your valves. I noticed that this noise comes from the engine, and from the engine belt in particular. I can turn the engine off and back on and it goes. I posted a thread several times complaining about a "whining noise" coming from my 09 RT's engine bay. It mainly does it at idle or low cruise, acceleration it goes away but comes back at about 3/4 throttle, so I was leaning more to the dual plenum issue that exists and maybe putting a spacer in. In engines with more than one cylinder they are usually arranged either in 1 row (straight engine) or 2 rows (boxer engine or V engine); 3 rows are occasionally used in contemporary engines, and other engine configurations are. E303 cam, Windsor Sr. Hi all, My BMW E92 330i N53 with 156,000 miles makes a high pitched whine from the engine bay when engine is warm. About 2-3weeks ago I started to hear a very noticeable whining/humming noise coming out the driver side when the car is in idle or at a stop light. So, my above guess on the frequency ratio between my "whine" and "whistle" has some physical basis. The base of a reciprocating internal combustion engine is the engine block, which is typically made of cast iron or aluminium. But for the engine to drop in RPM when hitting the brakes and when almost coming to a stop, to the point that the engine would seem to stall, is not normal. The fan clutch is designed to improve the vehicle’s cooling system efficiency while reducing the load on the engine and loss of energy caused by the fan itself. Could the increase in engine load be exposing the weakness in my timing chain tensioner? I have a 1998 528i with 106K, BTW. but its not the normal whine I hear from other cars, at an idle at full lock it makes no more noise, and. It is present during idle and acceleration. Its not a squeak like a belt makes, but a whine that goes with the engine speed. ; Vehicle is a SRT8 WK or LX. And, of course, if the idle is too low, it may cause the engine to stall or idle. Whistling/whine from engine at idle Discussion in 'VF Holden Commodore happens in gear or out,goes when rev engine a bit. 18 fk8 3400miles making engine whining/Ooing noise at idle. When an engines running in the water with a gearcase problem it’s hard to tell because the noise comes right up the midsection. If someone tries to tell you that the E-TEC is just as quiet at idle as a VERADO [I-6], do not believe them. I was told from the dealer that it was the alternator, probably a bearing or something internal. If you rev the engine quickly in neutral, I think you can hear it but it lasts only a moment so it's hard to tell. If you decelerate slightly the whine is there but quieter. You may have a misfire, a vacuum leak, or a clogged/faulty idle air control valve. Hear a whirring, whining noise under the hood when the engine is at operating temperature. I replaced the serpentine belt and the tensioner thinking that was the problembut didn't help. The sound itself is a little like the whine you hear from a small car shifted into reverse that is backing out of a parking space. You may be hearing some normal noise from the engine accessories and drive belt, I've noticed this when starting the car in colder weather. The odor is usually noticed after a cold start, fast idle, extended periods of idling and full throttle acceleration. Posted by Anonymous on Jul 18, 2014. T wo things do that, The Idle Air Control or at the back of the upper intake the vacuum elbow that goes to the PCV valve gets destroyed by oil and makes a flutter noise. After 2k the engine noise takes over and you can hear it in the background. In the vehicle, it was audible around 1,200-1,400 rpm under light loads. See the link in the comment section for a Buick Video on Series I engine noise. E, Instrument clusters From stock or your faulty unit rebuilt with a LIFETIME WARRANTY. If you then accelerate again, it will come back. - rougher idle - idle is 1700RPM when cold, which is higher than it normally is cold (ie. This noise should not occur unless the oil pan contains an AFM relief valve. Most vehicle’s engines will idle at our below one thousand RPMs. I have a high pitched whine at a bit off idle. Why does it do. Find descriptive alternatives for whine. The only way I can describe it is it sounds like a supercharger. Yes, I used the search bar tool. Just to make sure, I tapped the pump with a rubber hammer but the sound continued. I have the whining noise from the engine that gets higher as you rev the engine, whether in idle or driving. RS4 (B7 Platform) Discussion - Whining noise at idle - Guys, Firstly I want to apologize in advance if this post seems rather lentghy in my effort to describe the issue and ask for guidance. In the vehicle, it was audible around 1,200-1,400 rpm under light loads. For the last two months my 2003 ford Taurus SE,makes a grinding noise while the car is idle,like while waiting at the stop light or while in park when the car is running. I'm starting to lean more towards my TB as I've just started putting 2 and 2 together. That causes the whining noise. I don't have any check engine lights as of yet, but I don't know what is going on with the idle. MORGAN 4/4: The Zetec Bad Idle Guide The Zetec is a pretty reliable engine and can last well in excess of 150,000 miles. I am at work, my car was running poorly (rough idle, louder engine, exhaust gas/smell), and the check engine light is on. My wife's 2001 2WD RAV4 has a whining noise during idle or just above. It is what tells the valve when to open or close, resulting in more or less air flowing to the engine. Do you think I have a problem with an oil pump or could I try going with a thicker oil?. I'm getting an odd whinny noise while idling, quick high pitched. – during idle, very quiet and calm, outside ambient noise very well subdued, only slight engine rattle heard – Quiet a noticeable improvement over smooth road surface. Its the differential mostly, but in some cases i feel that the pump is making noise. crx dx check engine light and starter if its a whining noise after its started thas definately not the starter. Hear a whirring, whining noise under the hood when the engine is at operating temperature. When I pull into the garage/parking spot/stop sign etc, I can hear it. When on drive, while my foot on the break. As soon as I try to let off the gas, the engine will die. Cheaper aftermarket ones, however, use harder rubber which will cause vibration and/or shaking at idle depending on how hard they are. Pull the belt and check all pullies. When an engines running in the water with a gearcase problem it's hard to tell because the noise comes right up the midsection. If you then accelerate again, it will come back. Related issue. a fast idle used to accelerate bringing the engine up to. But because it is twice the size of what an outboard engine ought to be, it does make an impressive impact with its whisper-quiet idle. So i took it into the dealer and they told me this nosie is normal??? can anyone please confirm if you listen carefully to your vehicle is it indeed true that this low constant whine noise at stop signs and at idle or speeds low speeds that this sound can. – during idle, very quiet and calm, outside ambient noise very well subdued, only slight engine rattle heard – Quiet a noticeable improvement over smooth road surface. I had a 944 and the water pump went out at 20000 miles, they had to remove some of the engine components to access it and it was a 8 hour job. If this is the case, the whine sound may be heard. It is present during idle and acceleration. I'm starting to lean more towards my TB as I've just started putting 2 and 2 together. If the procedure is followed closely, the whine sound can be turned on and. How I solved my noisey valve train on my '92 Fatboy 1340 EVO engine. Re: 1989 YJ Wrangler- high pitched whine It might be a bearing in your alternator,water pump, or some other device thats driven by a fan belt, or maybe the bearings in the distributor- i've seen that before too. I went to the dealer the first time and they stated nothing could be found and it was normal. whenever my engine (V8 305) is reving there is a whinging noise in the engine. Page 2 of 2 < Prev 1 2. The cars engine idle note didn't seem quite right. When diagnosing the problem and the cause of the whining noise, take note of when the sound is occurring, such as when the engine is idle, when shifting gears, when driving at. So I took it in and the dealer replaced the idler pulley bearing, its still under warranty at 46K. Hey guys, question for you. updated the exhaust idle to make it sound more beefy added a new start up sound. My guess is something in the pulley/oneway clutch is not concentric. The main bearings in a ZF S6-40 are very different from those used in Muncie & Borg-Warner 4 speeds. Its hard to reach so follow the hose back from the PCV. It could be a couple other things, too, but those are the most common and first things you should explore. the other day, I turned on my truck and a wierd whining noise came on. Could the increase in engine load be exposing the weakness in my timing chain tensioner? I have a 1998 528i with 106K, BTW. My engine(3. I have been following break-in procedure and currently @ 280 miles. I first noticed it when I was driving back home from work; eventually it seemed like the car lost some power and had some delay between pressing the gas pedal and actually moving.