Phaeton :: Low Pitched Hollow Noise When Give Throttle / Acceleration
Aug 28, 2007
I have just purchased a 2004 v 8 phaeton with only 12k miles. it drive great except that when I give throttle /acceleration there is a noise (low pitched- hollow). I do not know if this is a normal noise or something which i need to worry about and always the engine coolant temperature gauge is at 200 (which is in the normal range- not sure because the temperature outside is high 102f). it drives great and all functions are fine. Do I need to change something or take it to dealer. the local dealer recently changed oil .
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09 i4 AUTO 47K miles ... When the car is running at around 50mph and if I give it very slight throttle (enough only to keep speed constant), I would hear this rhythmic humming noise. The hum rhythm has a frequency of about 1/2 second each. It is very muffled, almost like exhaust noise or tire noise. However, if I downshift to 4th gear, keep the same speed, and apply the throttle in the same way, the noise doesn't occur.
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I think my setup may be unique in that I have an XM commander, and Christian at Enfig made a special cable so that I have power connectors to the CD changer and my XM commander unit. Christian did a great job with this.
My dilemma is that there is a high pitched noise coming through the XM when the engine is running. It is not loud, and is not as audible at lower volume, but with my hearing problems, it is louder to me than to others.
The noise is not there when the car is not started. I guess there is no filter running the power to the changer (I am guessing), and now my XM commander box. I would not even know what to do regarding a filter or where it should go. The CD still plays clear with no noise. I have not connected an IPOD yet to the X3, but since the power to the CD and the XM commander is coming from the car battery, I figured that was the culprit.
Also, if I did not need the additional audio inputs, the XM roady I had in my center console via FM transmitter had more volume and more bass than my XM commander via X3. The XM roady did not sound good at all via the X3, and the XM commander was clearly better via X3 interface.
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I took my 2008, 56k in for a new battery after my car sat outside in negative degree temps for a few days. After doing that repair, the dealer recommended a new serpentine belt. Ever since that service appointment, the car is making a high-pitched "woo-wooo" noise during acceleration. It's definitely a noise I've never heard before. I took it back to the dealer two days later; he had the service guy drive it and they both claim the noise is normal and just due to the cold. Is it the belt? Is it the cold? Am I losing my mind?
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So - I'm sitting at my VW dealership, hoping that their can figure out why I'm getting a high pitched, miserable squealing sound, every time I depress my brake pedal. It's metallic sounding, and with the history of brake issues I've had in owning other VW models, I just figured it was the brake pads they use. Sounds like their tech believes it is an issue with the tires??? I've got an 04 Phaeton with roughly 38K miles on it - and it's supposedly "certified"....
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As the title says, I just replaced my JVC harness and glow plugs, now it start and run fine, but it will suddenly raise the idle to 1000rpm, and sit steadily untill I press the gas pedal, then it will fall into its normal idle range. I replaced the stuff today, and I did not get the time to get the engine hot, or test drive it, before I had to leave. But the engine did start fine, and idle fine. Except from the sudden raise after a few minutes idling, it will then hold around 1k rpm.
Strange, can't remember if it did that before. I get no fault codes on my SCT device. The car has been sitting for 3 months before I finally got the glowplug relay, mine was non functional.
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I have an 03 Ranger 4.0 4x4 5 speed. It has no power, can't give throttle or it bogs real bad. Baro shows 18in vac with KOEO. When running it has 15in vac. Replaced MAF, fuel pump, and fuel filter.
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I have a 1965 Chevrolet with the original 396 engine. When I purchased the car, I noticed the fuel pump was wet with fuel at the weep holes. I replaced the pump with a new one. This pump also leaked at the weep holes. I thought dirt may have been in the fuel tank and the check valves were stuck causing the leak. I installed a glass inline fuel filter before the fuel pump and installed another new pump. There is no dirt in the filter. This pump also is leaking from the weep holes. The pump only leaks when I give it full throttle and bring the car up well over 65 mph. I would like to retain the stock type of fuel pump. I'm wondering if the pump push rod is a replacement at some time and too long.
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I bought the 2005 F250 6.0 Turbo Diesel with 67,000 miles on it last March. It has given me gave me absolutely no problems until now. In the last 2 weeks I have had it plugged in when it was below 32 degrees outside. Otherwise, I just remote started it every morning and let it run for 20 minutes before I left. In the last 2 weeks, I have noticed the same problem whether it is morning, afternoon, or evening and it happens at different times. I will be at a standstill at a stop light, stop sign, or parked in my driveway when this occurs. Sometimes, and like I said, "sometimes", it will hesitate when I give it throttle. It will quickly respond after maybe a second, but the hesitation is still there. It only does this on occasion!
I work for a Lucas Oil distributor, so in the winter I ran the "extreme diesel conditioner" through it with a tank of diesel about every other week. I also used the fuel-injector cleaner at every fill up. On "ONE" occasion, and like I said, "ONE" occasion, when it hesitated at a stoplight, I looked in the rear view mirror, and noticed a short burst of white smoke, and then it took off. It has not done that since. I took the EGR off and cleaned it and it seemed okay until 2 days later, then the same hesitation came back, but like I said, at times!
I replaced the air filter and since then I have done nothing. I am now being told to check the coolant level in the resevoir. When I un-screwed the cap the cap, there was pressure in there and the fluid was about 1/4 inch low from the line. I was also told to check the filter on top of the block, but I have not gotten that far. Ford says it is the EGR cooler system! I have "NO" check engine lights!
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I have noticed for some time, over bumps that the cabin makes lots of noise. It doesn't sound solid, it almost gives a hollow noise when going over a bump or pot hole in the road. I hate that it doesn't sound solid. The noise resonates from the rear. Almost like a plunk, plunk noise.
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I have had my 2010 Accent just over 2 months now, and have had no problems at all. It has 4500 miles on it (I travel often)
Starting on Monday, when I shut the car off, it made a kind of hollow pinging noise. I have not switched where I fill up my tank, nor have I been driving any differently, to make this happen. This happened again Tuesday morning, but has not happened since.
Then, this morning (Thursday) when I started my car, it made kind of a screeching noise. I immediately shut off the car, and restarted it. I did not hear the noise again. Then tonight, same thing happened.
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In the morning when I back down the driveway with slight braking, the brakes make a loud hollow squeaky sound in a tunnel. The rear brakes were changed about 2 months ago.
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Are there any common trim peices etc that are known to come loose and cause a rattle in our trucks? My truck has always rode fairly quiet/tight, recently with the rough roads & stiffer tires plus cold weather I have noticed alot of little rattles which are hard to narrow down sometimes. They drive me insane. So far I have noticed the rear RH suicide door was one culprit which I quietened by a couple wraps of tape around the striker, but I can hear more from possibly under the dash & rear of cab.
Also I swore that my box was coming lose, if I went over railroad tracks I could hear a hollow rattling noise that seemed to be coming from back there, I looked and all the mounts are fine & seem quite solid, but when an 05 similar to mine passed me on the street one day and I noticed his box shaking alot more than the average truck, then looked at my own in the sideview mirror and it appeared to be bouncing around more than I think it should. I am kind of OCD about rattles & squeaks and cant sleep until I shut them up
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I just brought my6 Speed Automatic Transmission Phaeton V8 in, because under hard acceleration mostly between 3+4 or 5+6 for a short moment a howling noise with vibration into gear selector appears. I was able to demonstrated it to the Technician, but he said there is not much to do because no Fault code will show up and if he ask VW they will say he needs a reference vehicle to replicate it.
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I have a 2000 V70/XC volvo with 95K miles. I began hearing a strange hollow noise, like a whistle blowing. I took it to the dealership where I bought the car and they said it was the fuel pump. I asked them if it was bad and needed to be replaced and the said they weren't sure about having it replaced right away. They said sometimes it will make that noise and the fuel pump could last for months and sometimes for years. They even suggested to just drive it until it fails then replace it. some say it could never go out. But it bothers me because it is the car that my wife drives daily taking kids around and running errands and so forth. I am always worried that she could get stuck somewhere anytime. So I am not sure what to do.
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My car has ~2500km on it now and I've noticed a whirring / knocking noise from the left side of the car Mk6 GTI. It's not loud (in fact, hardly audible at times) but it's there. It's most noticeable when I am driving slowly (~30km/h) at low rpms (1500rpm).
It's only when the car is in motion that I can hear the noise. I revved the engine in neutral and could not re-produce the noise.
I've tried adjusting the tire pressure but that didn't seem to work. It was at 38 psi and now at 40 psi. No diff in the noise level.
It sounds like a knocking (like two plastic tubes hitting each other) /whirring noise but I cannot pinpoint the source...or whether it's even under the car or the engine...but it's definitely the left side.
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My 2013 Ford Escape SEL makes a metallic, hollow POP noise upon a cold start. It sounds like it comes from underneath the driver's side - a little towards the back end. The noise is very brief - half a second and then it's gone. It will do this relatively consistently both when it's cold and when it's hot outside, but usually only after the vehicle has been turned off for at least 3 hours or so.
My dealership can't get it to make the noise and they've had it for almost a week now. Most days the car will make this noise with me in the morning, for my lunch break and again when I leave work. My luck they have it 5 days and the noise up and leaves.
In the meantime, I'm driving a 2013 Ford Escape SEL 'loaner' and the loaner car made the exact same noise!
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When I'm driving with Windows up and audio off I can hear this hollow road noise, static buzzing sound from my back right side.
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My 2008 ex Honda Civic. Engine: (140hp 1.8-Liter SOHC 16-Valve i-VTEC 4-Cylinder 5-Speed Automatic with Grade Logic Control).
In the mornings, when I start it, it shakes & makes a hollow shaking noise in the engine compartment. This noise is normally more noticeable after having it parked overnight or not driving it for a few hours. The shaking noise is more pronounced after being parked overnight, starting it, & also putting it in reverse. After driving it for 30min, the noise & shaking stops.
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Just bought a new to me 2009 prius with 50k. Love the car thus far, and am learning more and more about the hybrid stuff.
One question i do have, that the dealer didnt explain well, was the planetary transmission. specifically the noises.
Its pretty quiet, but from a cold start, and into reverse, its the really odd noise. It sounds kind of like im backing a front plastic lower air damn off the curb. Like the hard, hollow plastic ka-klunk. it never does it from park to drive, or after a while of driving from park to reverse.
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97 Sierra K1500, 5.7 liter. High pitched whistling sound underhood in the vicinity of the throttle body. Starts after truck warms up and quiets down when accelerating. I've wiggled hoses, disconnected what I could without stalling engine, checked air lines into throttle body, checked air filter, etc. Sound does not change when I apply brakes so I don't think it's related to master cylinder. The only time it changes is when I accelerate, then only gets quiet until I come back to steady speed.
Truck has 85,000, runs great. No codes.
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