Golf IV / Jetta IV :: Knocking / Rattling In Low RPM But Promptly Stops All Noise At 4k And Up
Jul 9, 2016
Mk4 12v vr6 afp. 170k ish. No real mods except a cleaned up bay. Was death knocking LONG before I started the bay. Probably 6k miles. My car knocks/rattles bad in low rpm but promptly stops all noise at 4k and up. Makes the noise in any gear but only when throttle is applied. Even does it when revved up in neutral. No CEL other than one explained later.
Suspecting wrist pins as con rod bearings are brand new (replaced for no reason they were fine) and i removed head and no problems were found. Lifters tick a bit but that's all. Cleaned and put back with new headgasket. Shined up the pistons of course. Timing chains also done. <10k miles on oil pump. I even tried taking the shifter rod completely out and driving to verify if that was the rattle and no change. What could be left mechanically?
I was afraid the noise was preignition because I was getting codes for knock sensor out of range, so I replaced the knock sensors multiple times each, coil pack, wires, new ngk bkr5e plugs gapped correctly, fuel filter and pump. Have ran multiple tanks of premium 94 from different stations as well.
The ecu pulls timing back to 0 btdc and it is still knocking so I just decided that the knock sensors are picking up a mechanical knock rather than pinging. Only thing left is wrist pins or piston slap. Maybe injectors causing a lean condition?
Here's a pic of my car for attention ....
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Quick q recently just got a gli and I've noticed a knocking sound when accelerating and shifting from stops could this be my motor mounts ? I was thinking my tranny or clutch but everything runs smooth and goes into gear fine...
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02J-EGT 5spd. OEM axles.
Sounds like it's coming from the front. I noticed a few months ago my inner passenger CV boot was cracked, put motor mount spacers in which should have hopefully brought that axle up to okay standards. My initial reaction is to say the howling is from that CV joint however it's very odd it only happens after 35 and when I'm not heavy accelerating or deaccelerating- only when holding the car at a constant speed.
This also came after doing the TDI 5th. I notice it a little bit after passing 35mph in 3rd but really can hear it in 4th/5th when the engine revs drop. Am I right in thinking CV boot? Or transmission internal?
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Whenever I let off the gas there's a rubbing/knocking noise under the car, the sound will slow down as the car slows down but as soon as i press the gas pedal it starts again, it also doesn't do it if I am stopped and in neutral and rev the engine not sure what this could be?
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I own a MK4 Golf GTI which has recently started making a rattling noise when I first start the car (Perhaps cold weather?). It will continue for roughly a minute despite load (A/C, acceleration) before It stops and It won't happen again until the car has cooled down hours later. It's quite an unsettling noise and I would like to be set in the right direction.
After a couple hours online I'm leaning towards perhaps the belt tensioner being to blame? I haven't delved too deep into the noise but do believe it is from the left side of the motor. Can likely clarify on the weekend.
Is there anything to worry about? If so, where do I start? I myself was trying to fiddle around and see if the noise would happen at higher revs, which it seems to. [URL] .....
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I would really want to know what is causing this sound as it has become louder.
The noise can be heard in this short video: [URL] .....
The noise is coming from the area of the pulleys, and can be perfectly heard behind the passenger side front wheel.
The car is an AWD 1.8T Golf 2002 model.
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My VR6 is making a ticking sound when i accelerate, between 2800-3100, then it dies down a little and then gets loudest at about 3600-4000. The noise stops at exactly 4000rpms every time. Here is a sound clip of what the noise sounds like... you can hear it best in the last 15 seconds or so in the video. Maybe its the timing chains...
[URL] .....
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Okay just installed a newer 24v into my existing 24v VR6 GTI both with 135k. I have heard the motor run before it was pulled and sold to which sounded fine. Upon receiving the motor I put new timing chains, guides, headgasket and new gaskets all around. The timing was right on the mark and I tightened everything up to torque spec and I'm getting this noise which sounds like it's from the timing cover area. A code just popped on which I'm going to scan as soon as I get my hands on one. The car was running great for about 20 minute and I shut it off then turned it back on about 5 minutes later and experiencing these scary noises. I tried pulling each individual coil with no results to get the noise away. What could this be?
[URL] .....
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WRD Coilovers on my MK4 GTI. I finished my install this evening, and on my first test drive I noticed a knocking noise in the rear. I believe it is the springs sitting a little loose. The front of the car is sitting a bit lower than the rear, so I believe most of the weight is shifted towards the front, therefore making the springs kinda free float? I jacked her up after the drive and kinda gave the springs a wiggle and they have a tiny bit of play, enough to hear the spring kinda TING against the perch. I suppose I'm going to raise the front a bit to try and distribute the weight more evenly.
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I have a 2003 1.8t jetta. I got it in the fall and never really needed to turn on my AC until this week. It works, fans work at all speeds, blows ice cold air.
But i noticed today that my fans can be on and nothing. But when I hit the AC button there's a loud rattling sound. Everything works. It's just making noise when the AC is on. Whenever I turn it off the noise goes away.
I tried looking it up and couldn't find anything.
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2001 vr6 manual... I have a popping noise that comes from my suspension. it is in the front, and it has gradually gotten worse over the last month or so. It used to happen when i back out of my drive way only, but now it happens when accelerating from a stop, quickly braking or turning at low speeds. Recently its getting worse and i can start to feel it in my steering wheel sometimes. It doesn't feel like a wheel bearing. Is it bushings? Tie rod? CV Joints? Strut Mount?
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so lately I've been noticing a slight rattling/knocking noise coming from my car while it is in neutral and the clutch is not pushed it. When I push the clutch in, the noise goes away. I've read that this could be a sign of a bad throw out bearing? Is this right? If it is the throw out bearing, how long can I expect until it completely craps out on me? It seems to only do it on cold starts and sometimes on the uneven ground. I figured I should start saving some money to have this done because I'm not comfortable doing it myself.
Some other questions I had is my car is a 24v VR6 and it has 144k original miles. The timing chains and guides have not been replaced (to my knowledge at least). I know that replacing the throwout bearing requires removal of the transmission and so does doing the lower timing chain. If I get my throw out bearing replaced, should I have them do the chains also since they are already in there? I have no noise coming from my chains at all so there are no signs that they are going bad. Also, should I have my clutch replaced while they are in there? Again, no signs of a bad clutch either.
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I'm new to the VW family as a couple weeks ago I purchased a 2003 VR6 Jetta. So far I LOVE it and it's been by far my favorite car I've driven. About a week ago, I was visiting my parents back home (I'm a college student) and when I went to turn on my car to go back to school I received the alternator workshop message. I didn't want to take the risk so I took my sister's car back to school and my dad took my car into a local mechanic during the week.
Unfortunately, the mechanic we took the car too does not specialize in European cars (They're just a general mechanic/Ford dealership), but we didn't want to take the risk of driving a car with a potentially failing alternator to the closest VW mechanic (About 40 minutes away). The car was repaired and a new alternator added. All was going well, but I began to notice a slight "clunking" noise when first accelerating/lifting my foot off the brakes. I didn't think too much of it and it wasn't very loud nor severe. To me, it sounded like the interior plastic shifting when I moved.
Anyway, here I am a week later and I'm noticing a lot of noises that didn't exist before, including the clunk I just mentioned. I took a few audio recordings. (For the record, there is NO CEL or any dash lights currently on, thus why I'm not as concerned).
The first audio: [URL] ....
In this link, I'm driving the car around the parking lot in which I park my car here at school. It's mostly bumping gravel, but at the time of the recording I was driving very slow. You can hear a squeaking noise.
The second audio: [URL] ....
In this link, I'm revving the car while parked. Something I've noticed that it didn't used to do is rattle while idling ever so slightly (It's not audible in the recording), but in the recording you are able to hear a slight clunking noise.
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I did my pads and rotors this weekend. On the fronts I had some difficulty with the passengers side retaining clip. It was stuck in on the bottom. I wound up bending it out of place trying to get it off, and eventually just removed the caliper without it.
I took it out for it's first regular drive today and there is a rattling noise when the passenger's side goes over bumps (could be front or back, hard to say). I have theorized that the clip is deformed enough that when it gets jostled, it bumps out onto the rim which makes it go twang (which would be consistent, it's a relatively high pitched rattle. I'm going to look at it tomorrow, but I'm not sure what I should actually do. Can I just clip it off? What purpose does it serve? I might be able to get it out with WD40 and bend it in to shape.
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Last wednesday when I was on my way home, the car felt like it lost power and the RPMs dropped, I keep on driving until I got home, I let the car cool off for a few minutes then I tried to start it and it wouldn't, after a few tries the car started and then died.
I didn't take it to the dealer because it was kinda late but I called and made an appointment for the next day, I ended up not taking in the car since it ran good all day and I know they don't do nothing unless they can replicate the problem, now this morning the car started acting again and it smells like gas inside the cabin and weird noises are coming from the gas tank filler neck.
[URL]..........................................
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My 99 Jetta is rattling. The noise comes from the front center of the underside of the car. It started out only when I was accelerating and would disappear when in neutral or after reaching 40mph. Now its when its idling and driving at any speeds under 40mph (I think it just gets drowned out above that speed). I looked under the car and saw that there might be a piece causing the noise but I can't figure out what it is. It seems to be in-line with the exhaust system and its a metal, cylinder looking piece that has uniform holes in it. I'm just trying to figure out what is causing the noise, if I can fix it easily or if this is going to be a pretty expensive fix. (It has 165k miles on it, is a 2.1 gas engine with the new body type).
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when I bought my 2003 gti 1.8t it had a small exhaust leak, I decided to investigate today and found that the downpipe flange and turbo flange was rattling around, there's almost 1/16" of play and it's making a rattling noise. I can't tighten the nuts on the studs any more but that might just be from them being seized in place. I'm getting a new gasket and studs and nuts and hopefully that will fix it?
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So, I'm having this weird knocking noise on front left (drivers) side. It appears when I'm accelerating and stops immediately when i press clutch.. The noise gets stronger if i accelerate fast and gets faster, faster i go. Surprisingly the noise stops when i lift my car up and starts again at my drive height. Could it be driveshaft joints? And which one more likely? Outer maybe?
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I have never seen a car with more electrical problems in my entire life. Everything is wrong with this thing. Driver door controls don't work. The only way to get the driver door to roll down is if i take the positive of my battery and put it back on, boom window rolls up and down for 10 mins and than stops working. It literally seems like if i take the positive off my battery it solves all my issues and everything works. The car wont even start in 15 degree weather. I don't even want to know how long it will take me to start this thing in -30 weather. Its got a very loud knocking noise in the right rear. I Haven't been able to go to school for a week cause the thing is stuck in my driveway.
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I just recently picked up a 87 F250 with a 6.9 and a ZF5 trans. The PO replaced the clutch, and mentioned that he replaced the clutch fork too
Since I bought the truck, I've had some nasty rattling noises. It rattles when in neutral, and stops when I put the clutch in. The noise also comes back on occasion when decelerating at highway speeds, in 2nd as soon as I stop accelerating, and at low speeds in 3rd.
What is causing this?
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I have the po411 code, not sure which problem it is but when I first start the car it sounds awful like almost a grinding or rattling noise then stops after a few seconds.
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