Ford Super Duty (1999-2016) :: F250 5.4L - Engine Making Puffing Sound Out Of Exhaust

Here's a link to a video where you can hear what I'm describing. The noise is most noticeable around the start (first 18 seconds) and the end of the video when I'm closest to the exhaust pipe:

YouTube ....

You may need headphones to hear it, but the engine seems to be making a bit of a puffing sound during idle. It happens completely randomly and I'm not quite sure what could be causing it.

Aside from this noise, the engine seems to idle normally, and the check engine light isn't on. I had all of the injectors out a few weeks ago for cleaning. They all appear to be working fine. I also cleaned the throttle body at that same time and ensured there were no obstructions for the air intake and filter.

What might be causing this sound? 1999 Ford F250 Super Duty 5.4L

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Passat (B6) :: Thumping Sound Coming From Right Front Tire That Is Consistent With Speed

I just picked up my car after having a shop install ball joints, tie rod ends, and end links and there is a thumping sound coming from I'm guessing the right front tire that is consistent with speed. I had an alignment done today as well. Is it possible that my newish tires are already worn unevenly and the alignment is showing that now?

Either that or the wheel is not seated completely. I'll call the guy back tomorrow when they open and let him know what I hear.

Only reason I didn't so it myself is because its cold out now and he did everything including alignment.

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Ford - Explorer :: 2000 - Consistent Knocking Noise Increases As Engine Speed Increase

I'm looking at a dirt cheap Explorer 4.0, has been sitting for 2 years. Runs nice, with a double "knock" noise but quieter than a rod knock. Idles smooth at 600 rpm, "knock" is consistent, but increases as engine increases speed. Has 2 year old oil, and 2 year old gas. Would a tune up support it, and revitalize it, or is the engine almost dead. Still drives, didn't push it to hard. Interior is 9/10, exterior is 10/10. I have him down to 600. 4x4 works, and feels good.

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Ford Escape / Hybrid :: Buzzing Sound From Dash At Higher Speed?

ok this has me stumped I get this buzzing/humming/vibration sound from what seems like around Defroster passenger side but it is not all the time only at higher speeds and it it intermittent . I have removed cabin filter and cleaned filter box and checked for a leaf or something even sealed somewhat the plastic shield that covers the cabin filter. I really don't want to rip dash apart but it is so annoying

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Touareg :: Higher Pitch Sound At High Speed

what could be causing this. The faster I go the higher the pitch sound. It only occurs when pressing the gas pedal. As soon as I let off the gas the noise is gone.

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Camry :: 2006 - Sound Like A Hole In The Exhaust At Higher Speed

I have a 2006 Camry (manual transmission) w 165K miles.

Within the last year or so, it has gotten louder, more noticeable at higher speeds. Almost sounds like a hole in the exhaust. However, shifting into lower or higher gears doesn't change the tone of the noise. Taking it out of gear completely doesn't have an effect. However driving faster does. So I'm pretty sure it is drive train related .

Does this sound like a wheel bearing issue?

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Lexus GS 2013+ :: Consistent Engine Roar From Sound Generator When Throttle Hardly

I've noticed that I don't get a consistent engine roar from my sound generator when I throttle hardly. I get more of a roar when the engine is cold and I floor it. Any other time I accelerate hard it doesn't sound like my sound generator is working.

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Golf/GTI VII :: Loud And Consistent Metallic Whining Sound When Engine Warmed Up

So I started getting this metallic/harmonic whining sound from my GTI's engine a few weeks ago. It was barely noticeable then, but has now gotten louder and more consistent. The sound occurs once the engine has warmed up and can be reproduced by holding the revs constant anywhere above 2k. The sound does not change in pitch with engine speed. It doesn't matter if the car is parked or moving.

I've attached a video... The sound can heard starting at 00:23 and becomes constant after a few seconds. Its hard to hear at first, but if you listen carefully its definitely there.

I have an appointment with the dealer tomorrow and will update with their findings. In the meantime, any clue as to what this could be? I can't really pinpoint where its coming from, seems loudest near where the oil filter is? By the way I'm 100% stock.

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Lexus SC430 :: Engine Bogs Down At A Higher Speed

When I am driving at a higher speed and I need to pass someone or accelerate, the engine bogs down. I push the peddle to the floor and nothing. This does not happen all the time but it happens. But when I accelerate from a light or lower speeds there does not seem to be an issue. I recently had the value gaskets replaced because of a small oil leak and it seems this problem began after then. I have taken it back to the shop but the problem does not duplicate itself when they test drive it.

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Ford F-150 - 1997-2003 :: 2001 - Shakes Violently At Consistent Speed?

2001 F150 4x4 harsh shaking. When driving at consistent speeds the truck begins to shutter and shake, begins as a light shake and becomes extremely harsh fast. This is not like a vibration that can be felt, but a really harsh shaking of the entire truck.

The truck continues to shake after taking foot off gas and braking. It will shake harshly even when braking and slowed down to 5mph, but instantly goes away once at a complete stop. Accelerate immediately after coming to a complete stop and it completely goes away and drives normal for a day.

Check Engine light has not come on. Tachometer stays consistent RPM. Shift into neutral does not stop shaking. Only coming to a complete stop ether in drive or neutral does the shaking stop. It happens driving at consistent speeds going 35mph & 65mph, etc. Any thoughts on what the issue could be?

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Prius (2004-09) :: Engine Speed Higher Than Before Mainly On Cold Start Or Go Uphill

I found recently that my 04' Prius' engine easily goes higher rev than before (based on engine sound pitch). It happens mainly when cold start, go up hill. After warmed up and on flat road, it goes back to normal. Overall, still in great condition at 211K. MPG stays at 46 on meter when temp is around 45F with 50% highway drive at 100 miles/day. I suspect the serpentine belt slippery or something. What do you think? I think the belt is original. I bought it used at 104K.

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Golf IV / Jetta IV :: Computer Show Speed With 20km/h Higher Than Real Speed?

is locking in 4m but is too high, suppose to be ~2200rpm.When I checked with vagcom the speed shown on computer show a speed with 20km/h higher than the real speed (shown at speedometer)

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Golf IV / Jetta IV :: Hesitation While Driving At Consistent Speed In One Gear

Recently I switched from Revo software with 440cc injectors to Unitronic with Siemens 630cc injectors. After swapping, the car has developed a hesitation issue. It only happens when driving a consistent speed in one gear, for example going 45 in 5th, the car will feel jumpy and hesitate to accelerate with a seeming loss of power. Replaced spark plugs with new ones and the problem still persists. Problem never happened with old software and injectors.

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Ford - Crownvictoria :: 1988 - White Smoke Coming From Engine

Ok so basically, driving it around at 50ish mph or less and my car is fine but once I reach I-95 no problems yet. After about 10 miles at Interstate speed (on my way to work), I happen to notice an odd sound coming from my engine. It almost sounded like as though an airline plane was starting up. I checked for any warning lights going off; nothing. After about a mile I happen to smell something odd coming from my air vents (I don't have ac so I have my windows down) and then I started seeing a lot of white smoke coming from my air vents and the hood. Freaking out like a bat out of Hades, I immediately pulled over, shortly thereafter a heavy amount of white smoke was coming out even more from the air vents and from the hood so I pulled open the hood to let it escape and left the doors away from the interstate open.

I saw smoke coming from the engine coolant top or whatever it's called and it was coming out so fast and hard it was like making a whistling noise almost. I also saw white smoke coming from almost near the engine towards the back. However, whenever I am on a normal road going 55 or less it's fine. My grandfather says it has something to do with the cooling system or coolant or whatever it was. He doesn't know what would cause the problem or how to fix it... 1988 Ford LTD Crown Victoria LX ....

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Nissan - Rogue :: Stop Accelerating Past 2.5 - 3 RPMs When Driving At Consistent Speed Of 70 MPH

I have a 2008 Nissan Rogue and I bought it used and it has worked great until recently. The issue I have is after 1-2 hours of driving at a consistent speed of 70 MPH it will stop accelerating past 2.5-3 RPMs(x1000). When it started happening, I was able to pull over, turn the car off for 10-15 minutes, and it won't happen again until my next trip.

I can't seem to recreate the issue except after going on a road trip. It's kind of scary when trying to go up hills and when I slow down when I come into smaller towns and get to a stoplight, I stop, wait until the light changes, and when I try and accelerate again it's jumpy and doesn't respond for 3-5 seconds which can be annoying to the person behind me.

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Passat (B6) :: Higher Pitch Of Faster Turning Engine / Car Idling At Higher RPM At Stop

Sometimes I will stop at a light and my idling rpm will go from 600 (usual rate she idles at) to about 950. While this may seem inconsequential in the grand scheme of things, it's noticeable enough that it seems like the car wants to go. It'll lead me to depress the brake more. You can also hear the higher pitch of the faster turning engine (it is a 50% increase in speed). This will happen at random times so I have not been able to pinpoint if it is caused by a particular driving style. ECM for this?

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Civic - Honda :: 1998 - Overheating / Temperature Drops Back To Normal When Reach A Consistent Speed

1998 Honda Civic EX. This has been a great car and have got a ton of good miles on it. The problem that I am having now is with the temperature gauge. The measurement is completely all over the place while driving. While moving around town, the gauge shows the temperature VERY hot. As soon as I reach a consistent speed, the temperature drops back to normal (moves very erratically!). The gauge seems to get even hotter while idling. Another issue (may or may not be related) is the heat coming out of the vents is only working while the car is in motion. While stopped, it pumps out cold air. The temperature immediately changes when I get going again. Both problems seem to be getting worse. The car has coolant, and all other levels of fluids are normal.

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Chevrolet - Cavalier :: Puffing Noise When Revving Engine From Exhaust Pipe Area

When in idle the car is fine, however when revving the engine up to 2500-3000 rpm there is a puffing noise from the exhaust pipe area. What this could be?There is only on puff when reaching 2500 rpm... When I asked mechanic he said "it's because there is a small engine... Its a cheverolet cavalier 2001...

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Lexus LS 2007+ :: Consistent Knocking Sound At Idle

I have an '09 LS 460 AWD and there is a very unlike Lexus knocking sound at idle to maybe up to 20mph. best way I can describe is to imagine a diesel engine at idle, and dilute it substantially. subtle but clearly there. i read here in CL that could be due to valves or such, but dealer insists it is because of the intentionally designed "oversized fuel pump and fuel injector" and completely normal.

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