Golf IV / Jetta IV :: Loud Banging Coming From Engine Bay - Blown Headgasket?

So I was driving home from work in my 2000 Jetta 2.0, which has 115k miles on it. Its a 5 speed and I love the car, even though its kind of a beater. Anyway, coming off the highway and reducing speed, I hear a loud banging coming from the engine bay. It sounds like a car would if a spark plug were blown out of the block.

There is definitely a loss of power and the motor is running rough. The check engine light is flashing at me constantly. I pull off the highway and pop the hood. No fluid loss, no obvious smoke coming from anywhere. I start feeling around the engine bay and I feel high pressure air (exhaust?) being expelled from under the valve cover.

So what could have broken? Cracked head? blown headgasket? some other thing I haven't thought of? Its obvious that exhaust gas is leaking from a cylinder into the valve cover.

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Ford Super Duty (1999-2016) :: 2000 F250 - Loud Banging Noise When Going Over Bumps

I have a 2000 F250 2wd 6spd with a loud banging noise that has been vexing me for quite sometime now. The bang happens when I go over bumps (even small ones like road reflectors) while driving. I don't think it is suspension related since all the ball joints, front/rear swaybar and endlink bushings have been replaced fairly recently. All the springs and bushings also look okay.

The noise seems to come from the rear, and I notice that if I let off the gas when I go over a bump, it does not make a sound. Conversely, if I am accelerating aggressively and hit a bump, the sound is much louder. Also, if I step on the clutch while keeping my foot steady on the gas, it makes a bang. Jumping up and down in the bed while the truck is parked does not recreate the sound. I have already greased the driveshaft spline joint so I'm thinking the sound might be differential or transmission related. What it could be?

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Golf/GTI VII :: After Installation Of Lowering Spring Hearing Popping / Banging Over Large Bumps?

I installed H&R lowering springs this weekend and now the suspension is making quite a bit of noise. I've double and triple checked the installation, and this isn't my first rodeo, so I don't think anything is improperly installed.

I'm hearing popping/banging over large bumps. I do believe that the noise is most noticeable when my tires drop off into a pothole and the suspension is unloaded. I think the noise is caused by the suspension being uncompressed and then the coils of the springs either hitting themselves or hitting the top hat.

Experienced excessive noise with the H&R springs? I think my next course of action is to get some spring isolators and see if that stops the noise.

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Golf IV R32 :: Loud Clunk When Banging Into 2nd Gear

Only when I'm banging through gears into 2nd my motor I think, makes a loud clunk. I checked the motor mounts an they were tight. What else could it be?

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Golf IV / Jetta IV :: Front End Clunk Sound Occurs While Braking And Accelerating Over Bumps

A clunk sound coming from the front end. Drivers side and Passenger side. Not really a metal on metal sound. The problem started after coilover install. The sound occurs while braking and accelerating over bumps. So what I've replaced:

-Strut Mounts and Bearings
-Lower control arm bushings (R32 bushings)
-Drivers Side CV axle

What I've checked:

-Tie rod ends have no play
-Ball joints have no play.
-I have no sway bar, so not the sway bar bushings.
-Its not the axle hitting the frame.

Could possibly be the dog bone mount but when I installed the 1' motor mounts I saw no issue but could possibly be the bushing. feel the clunk in my foot as well.

MK4 2000 Jetta 2.0 5speed With Raceland Ultimo Coilovers (Junk)

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Golf IV / Jetta IV :: Passenger Side Thud Sound When Going Over Bumps And Left Hand Turns

My passenger side has been making thud noises on a number of occasions on my 01 Jetta 1.8t:

1. When I go over bumps, the front passenger side will make a loud thud noise.
2. When I take my foot off the brake, there will be a loud thud from the front passenger side as well.
3. When making left hand turns and I begin to turn the wheel back to return it to its original position, there is a thud coming from the front passenger side as well.

It does not continuously click like a bad CV joint would. All these symptoms came at the same time period.

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Golf IV R32 :: Loud / Tinny-Sounding Banging Noise From Rear Of Car

Went out to run some errands this morning, and was alarmed to hear a loud, tinny-sounding banging noise from the rear of the car. It would occur on every bump. little or big; every time I braked; every time I started up from a stop; after each shift to a higher gear; and every time I turned a corner.

I was getting really concerned, as I had never heard a noise quite like this on any car, ever before. When I got home, I pulled the floor jack out of the garage, then went to the trunk to get my torque wrench with the wheel bolt socket on it.

When I opened the trunk, this is what I saw: ...

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Golf IV / Jetta IV :: Vibration Accompanied With A Loud Droning Sound

So here is my situation, back in September I had to replace my passenger side cv axle on my 99' Mk IV Jetta and ever since then I have had a vibration whenever I exceed speeds over 70. This vibration is accompanied with a droning sound that gets louder the faster I go. But the weird part is all of this only happens when I am accelerating. If I push in the clutch or take my foot off of the accelerator it goes away immediately. Since all that started (for other reasons I might add) I have replaced the tires, both front ball joints, the driver side steering knuckle and both front struts.

Additionally and I'm not sure if this is related but it does seem coincidental. The muffler bumps on the body when I'm accelerating as well, but only after the exhaust has warmed up. I am at a loss. When the tires were installed they did a balance on the wheels and they didn't say anything about the wheels being bent or "out of round".

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Golf IV / Jetta IV :: Loud Metal Scrapping Sound While Driving

Driving my golf to take daughter to airport, all or a sudden there is this very loud metal scrapping sound. So I pull over and see this metal bat hanging from under the car and rubbing on the ground. At this point I'm not sure what it is and cant really budge it or dislodge it.

Anyway called for roadside assistance and a towtruck comes. The guy lifts the car a bit and is able to free this metal rod. Its about 1.8m (6ft) long and about 5mm thick (approx). Couple of photos below. Not sure if its part of suspension, steering or something else. Did have a mobile mechanic today doing some work on the cooling system (flange) he had to jack up the car.

[URL] .....

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Golf IV / Jetta IV :: 2001 2.0L - Loud Rattling Sound When Started / Bad Alternator?

So im trying to diagnose my girlfriends issue with her car. When she starts it, the car will make a very loud rattling sound, not really grinding, but like metal on metal contact. Sometimes the sound goes away, but when the car is cold it is a guarantee. The battery light is also on, which was not the case when the rattle first started. I first thought (and hoped) it was perhaps the serpentine belt tensioner as I researched that when it fails it can make a loud rattle sound.

Once replaced, the same issues occurred. So I went ahead and put the old one back on since it was not the issue. Note that the old one and new one both shared the same tension applied to the belt and the pulley was still smooth without issues.

Using a stethoscope to try to determine the location of the rattle a bit more precisely I found the noise to be coming more from the alternator. Weird because I recently replaced it within the last year. I went ahead and removed the tension from the belt and played with the alternator for a bit. The clutch felt good when i used a screw driver to hold the fan and tried to move the pulley. One direction moved with ease while the other direction refused to budge, perfectly normal as I researched. The thing that I noticed that I thought was unusual was the fact that the shaft of the alternator had some play (Video below).

The belt has plenty of tension on it so i do not believe that it is slipping on the alternator. I push the belt with the tensioner engaged and the tensioner does not budge.

I decided to measure the voltage coming off the alternator with the car running and it was at 10.95 which im pretty sure is very low for these cars.

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Golf IV / Jetta IV :: 2002 GTI - Loud Whistling Sound On Cold Start

I am having an issue with my 2002 GTI 1.8T. I have tried searching for an answer to this, and found a couple things saying maybe it could be the secondary air pump but wanted to get more opinions before I go shell out money to chase this problem.

When I start up the car in the morning after having it sit overnight, the car does the normal thing where it increases rpm's to about 1100 to warm it up. During this a loud "whistling" noise can be heard. Once the car is warmed up a little bit, the rpm's decline to about 900, and the whistling sound goes away. When this happens though it almost sounds as if a valve or something is closing causing the noise to go away.

Also, I am unsure if this is related to this, sometimes when I am driving, I will be accelerating and the car seems to stop accelerating as strong as it was, boost goes down from around 8 or 9 psi to about 4 and I seem to lose power as if I had let off the gas some. When I put my foot further down the car accelerates harder again and boost goes back up.

I have already changed spark plugs, cleaned MAF sensor, and run the 3m 3 part engine cleaning kit through it.

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Golf IV / Jetta IV :: Fairly Loud Binding Sound Coming From Front Suspension?

2004 Jetta 1.8t manual, sport package with about 85,000 miles on it and I've owned it since new.

About a year ago I had a shop replace the strut bearings while it was in for some other things. After I picked it up my alignment was jacked and there was a binding sound coming from the front end. The shop said the sound was just the springs settling in. It did go away after a while. Still don't understand why the alignment was off but I aligned it myself and all was good for a while.

About two weeks ago I myself replaced:

Lower control arms (stock VW) and ball joints (FEQ or Lemforder, not sure which) with R32 rear bushings and poly front (I HATE poly bushings but that's for another time)

Tie rod ends (FEQ)

Front brakes & rotors (stock VW)

I also threw in a oem Audi lower stress brace while I was under there but I don't think that has anything to do with my problem. Then I took it to a shop to have an alignment done on it. Everything is now within spec except that the caster is 6.6 degrees on the left front and 6.2 degrees on the right front. How does this happen?

So now my problem: There is a fairly loud binding sound coming from the front of the car randomly. It sounds like the coil spring is binding but maybe it is something else? it mostly does it when I reverse for a bit and then put it in first and drive forward or forward then reverse so something is shifting front to back. Steering doesn't really seem to have any noticeable effect.

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Golf IV / Jetta IV :: 2001 - Banging Gears - While Shifitng From Park Into Reverse / Drive Whole Car Jerks

I have a 2001 vr6 Jetta automatic transmission. When I shift my car from park into to reverse or drive the whole car jerks as if it's banging into gears. But while driving it drives normal. When I stop and accelerate I feel the same jerking you would say.

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Golf IV / Jetta IV :: 2001 - Cracked Oil Pan - Loud Ticking Sound At Idle - Engine Blown?

I own a 2001 Jetta 1.8t with Gti front end. So I was driving downtown the other day and I bottomed out really hard and cracked my oil pan. I didn't realize it was cracked and leaking so I drove it home, drove fine with no issues at all. When I got home I parked it and went inside and in the morning I came out and tuned it on for maybe ten seconds. It made a really loud ticking sound that was constant and oil pressure was almost all the way down. So I shut it off and looked and saw the oil pan. I fixed the oil pan yesterday and started it up and it sounded really good and drives fine. But I've been hearing a pretty decently loud ticking sound when everything's up to temp and warmed up. The ticking is only at an idle and it drives like it use to just sounds bad at an idle. Some people think it's my oil pump and tensioner, some people thing I ruined the turbo and possibly internals.

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Golf V R32 :: Loud Clunking Noise In Rear Happens Over Bumps

There is a clunking noise coming from the rear of the car. Not a metal on metal sound. Sounds like its more on the passengers side. I replaced the swaybar linkage ends since they were a little loose and thought it was that. Nope...I have H&R coilovers, they are about 5 years old. Can't imagine they be shot this soon. Had someone drive my car while i was behind the R and the rear wheels aren't dancing at all, a common sign of a blown shock. Push down on the car, shocks still respond like they did from day one. I've put the car up on a lift, both sitting and wheels dangling. With the wheels dangling, I grabbed onto the shocks to see if there was any play in the upper shock mounts, solid. Looked under the whole car for loose plastic covers. Can not see anything loose. I made sure everything inside the hatch, including the battery is sitting snug.

The clunk happens over bumps, with or without the brakes on and is loud enough that if the radio is on, it can still be heard.

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Golf IV R32 :: Loud Clunking When Going Over Bumps Or Pot Holes At Slow Speed

So i just had installed a brand new set of bilsetin pss9. Going over bumps or pot holes at a slow speed, i get loud clunking out the back. Did not have this prior to the coilovers. Its dropped almost 3/4 of the thread. What this is? Also the shop that installed them, had put them in with out the rear upper spring plate, is that a standard install on these?

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Golf IV / Jetta IV :: Very Rough Whenever Go Over Bumps

I own a 2001 VW GTI VR6 and whenever I go over bumps, it is very very rough, feels like my car went into a 5 inch pothole. Now I have been doing research as to what the problems could be, but i just recently installed HotBits suspension, top mounts were changed, rear axle bushings were changed, along with my sway bar bushings.

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Elantra HD (2006-10) :: 2009 - Front End Loud Banging Noise

I am getting frustrated with a loud banging noise in the front end of my Elantra. It happens when I hit bumps or dips in the road. I have replaced struts, bearings and mounts, sway bar links, control arm bushings and nothing will fix it. The ball joints and tie rods are tight.

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Golf IV / Jetta IV :: Sunroof Rattle When Closed While Going Over Bumps?

Have a sunroof that rattles when closed while going over bumps? I use my fingers to lift up on it and its barely budging, also floors are soaked....

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