Neon :: 2000 - Hissing Noise / Clunk Coming After Every 4 Seconds
Sep 30, 2012
So I was sitting in my wife's car and hear a clunk while the car was in park sitting in the driveway. She said it had been doing that for a few weeks now. The clunk seems to happen every 4 or so seconds while idling and is coming from the engine compartment somewhere. There is also what seems to a hissing or sucking noise that sounds like it is coming from in the dash somewhere and also happens about every 4 seconds during idle. I really haven't had a chance to look into what the problem(s) may be or if they could be connected. I am really not sure what the clunking at idle could be. I think the hissing noise is a vacuum leak I could probably hunt down when I have a chance.
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As I accelerate, there is a humming noise that comes from the transmission area of the car. It does not make the noise when I am in idle, nor if i put the transmission in neutral and rev the engine.
When driving slow the noise is very subtle. As I accelerate faster the noise gets louder. The noise becomes the loudest at 60 mph. Above 60 it seems to calm down some. The noise is like a constant, deep humming sound. The noise gets softer as I slow down and then is gone when at idle again. To me it seems related to the speed of the tire or the CV half shafts turning or something rubbing in the transmission as the car goes faster. However the sound doesn't change when the transmission shifts. It stays constant and only gets louder as I go faster and then softer as I slow down.
While driving and turning hard to the left the sounds almost disappears until the car straightens out again. I have replaced the struts on all four wheels and this seems to only have caused the sound to get louder. I have also inspected the CV joints. There doesn't seem to be any cracks or signs of wear to all 4 joints. And I repacked the bearings.
The only other things I can think of is the cv half shafts are actually bad and need to be replaced. Or the motor mounts are not aligned/worn out and need to be replaced. Or the kickdown band and low reverse band on the transmission need to be readjusted. Or the transmission is has a problem (however it doesn't slip when driving).
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My 04 hyundai accent about 2-3 months ago acquired a hissing noise which seems to be coming from the middle of the engine compartment. The car only has 100,000 miles on it.
It is a constant hiss that only stops when the gas pedal is pushed initially. I have looked all over the car and can not see any fluids leaking at all. It is pretty loud and can be heard easily outside the car when the car is on.
I hooked up my obd2 reader and found these codes:
P0304-Cylinder 4 misfire (I notice it when the car sits at idle for about a minute)
2x P0121- Throttle Position circuit range/performance problem
2x- Evaporative emission incorrect purge flow.
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I drive a 2003 Dodge Neon SXT with 153,000 miles on. When the engine is first started, there is a "click-click-click" about every 7-10 seconds. I've had the belts changed and adjusted, they freed up a stuck idler (didn't replace the idler, the price was several hundred dollars). Once the engine is warm, the noise goes away.
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Minor noise, and it might be normal. When I have my air on, I get a sudden hissing noise for about 2 seconds, and it happens once every 5 min or so, almost to the second. Not that loud. like a blow-off valve noise, almost. Sounds like it's coming from the passenger dash area. No other ill affects that I've noticed. Not to be confused with the popular wind/intake whistle that some have. Any theories? Almost sounds like a drop of water landing on a belt, and spinning dry. But it happens on dry days too, I think.
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Ever since I bought my 2000 mk4 golf I've had this super loud hissing noise coming from the bottom of the car. Almost like someone is spraying compressed air when your foot is on the throttle. Sound gets louder the more you depress the pedal. Had a catalytic converter code so after a few months I bought a new cat, welded it on, and the sound fairly went away. Still present, now months later the sound is now a bit louder but It's gotten on my last nerve, I want to fix it but I can't seem to figure out what that noise is.
Almost sounds like my car is a classic beetle by the way it accelerate at times. The car is sort of sluggish than normal at times, no codes, no lights, sometimes peeling out in 1st gear the car hesitates like I have regular power, then I have this sudden burst of 1 second power then back to normal until I shift then I never feel it again until I'm back in 1st and WOT it. Car does smell like gas a little sometimes, not too prevalent but nonetheless noticeable especially going in reverse. My gas meter seemed to fluctuate at times, I may have a bad pump maybe, not sure if that has anything to do with it.
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My 85' 740 GLE has been having some troubles lately, A nasty loud hissing noise is coming from near where the oil pan is and it is more prominent when i apply pressure to the gas pedal or sometimes when my foot isn't on the brake or gas. The first 5 minutes or so of the drive are fine, you hear the hiss but there are no noticeable performance issues. After a few minutes the noise gets a little louder and starts to effect the acceleration tremendously to the point where it'll take me roughly 10 seconds to hit 30 mph from being stopped.
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I hear hissing noise when my car A/C is turned on. I have show it in Firestone and the person is like everything seems fine. I do not understand the reason. But the A/C works without any issues.
The hissing noise can be heard everyday when i turn on my A/C initially and later in between i can hear 2 -3 times a day when i go to my office.
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Today i went out side to warm up my car before heading out to work ... When i started my car i got out and i hear a Loud HISSING sound ??? So i popped the hood and it just got louder ?? sounds like its coming from the top of the motor and also on the left side by the belts ??? its a 2004 R32 and i just hit 80K miles?? What it could be ??
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This morning when I pulled into the garage after taking my daughter to school and shut the car off, I noticed a very loud hissing noise coming from the back end of my car, underneath somewhere. When I came back out an hour later to leave for work, it was still hissing. I drove to work and all was fine, but when I went out to the lot after work my car was completely dead.
I tried jumping it, but it wouldn't even take a charge. I had to find a ride home and will get it towed tomorrow. I'm sure the hissing noise is the cause, but what's going on. My car has never given me any problems--it's run perfectly for almost 150,000 miles (5 speed manual transmission). Maybe this is the end?
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Having had bit of a disaster today (shutting keys in boot that cost me 85 quid, that's why you don't buy from people who've lost the spare key), I noticed back box mounts and back box are rusting.
Is it possible to swap the standard rear silencer for the 2005 1.3/1.5 accent with the twin outlet one for the coupe 1.6?
It looks very similar and the pipe bends look the same..? What a hissing noise is when in gear and running? Stopped it doesn't make the noise, and as soon as clutch is depressed while rolling it stops.. Had a new clutch fairly recently.
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2000 Dodge Neon clacking noise at low rpm after releasing gas pedal. Around the 2000 rpm range letting off the gas produces a clacking noise. I have listened to the engine with a long screwdriver at idle and revving. The noise is not always present in this condition. Although when it has come up it seams to coming from behind the engine. Does not seem to be valves, connecting rod or main bearings etc.... Only at low rpm 1200 thru 2000 rpm WHEN releasing the throttle. Clacking seams to be timed with the crankshaft as it reduces the sound as the engine reduces rpm, not at the speed of the cams. Sounds fine at idle, going through gears and at freeway rpm's.
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O2 PASSAT 1.8t had crankcase vent recall performed now there is a hissing noise coming from that area that reacts with engine speed. Also I notice that hose that plugs into the intake manifold, from the new gizmo they installed ,COLLAPSES when the engine starts?
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I just noticed my 2 weeks old car is making some hissing noise when accelerating. It sounds like air leak, or air movement. It is only noticeable when the window is open, and only happen at 2000rpm or higher.
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I've been noticing "Hissing Noise" coming from the rear passenger side (rear right hand side) of my 2011 Prius for a few days now. It sounds like the hissing noise is coming from the vent that's located on that side. Not sure what that does, but the hissing noise is usually present when I'm driving at 10MPH or up and it's gone when I'm less than 10MPH or at a complete stop. I have about 32K miles on the car.
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Usually after I run the car in manual/sport mode, I begin to hear a high-pitched 'hissing/whistling' noise coming from the engine. It sounds like a vacuum leak. It is audible while driving with the windows down.
I am having problems pin pointing the source, but it sounds like its coming from the center block. What is the right direction to the leak? It starts exactly at 1500 and cuts off at 2200 rpm (while in gear). 1500 to 3000 rpm while in park..
I have a Takeda intake installed and I re-tighten the fittings.
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Looking for some input on a recent "hissing" noise coming from eng compartment. It's only noticeable during initial acceleration, and sometimes at the beginning of gear changes. I am assuming its tubo and/or exhaust related, as I've noticed a strong exhaust odor in the cab as well. I wasn't under load when the problem started but i was under rapid acceleration. Not noticing any fluids or oils leaking. No warning lights have tripped, as of yet.
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I have a 2001 Plymouth neon and the coolant fan cuts on and off about every 30 seconds .
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I drove my daughter's Dodge Neon last night and found that when I'm on the highway, the RPM goes up slightly every few seconds. I had about 30 minutes of driving until I was home so I tried to figure out if my speed had anything to do with it.
It doesn't happen when I decelerate or am at an idle. When I'm on a flat stretch of highway and using the gas pedal, the RPMs will increase. I didn't notice the feel of the engine changing, I heard the engine speed up a bit.
What kind of problem is this? The car has 109,000 miles on it.
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2000 Ford Excursion XLT 4x4 V10 ... Part store shows I need a 3G alternator ... Current alternator put on by PO in 2013/14 s a Duralast DL7764 from Autozone. Tag is still on it.
My battery light is coming on for a few seconds and going off for several hours before it comes on again. Connections are good....crappy Autozone alternators.
But for some reason my motor has a 6G alternator. All parts stores say I need a 3G. Did Ford put 6G'S in all excursions, or do I have a 2004+ motor in my 2000 Ex? Or will a 6G fit where a 3G is supposed to be? All connections look factory including electrical hook ups.
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I just finished my suspension refresh and I notice a noise coming from the front end. I really think that my end-links are the source of the noise. When I push the car up and down from the center, no noise. When I shake the car from right to left, I can ear a clunk coming from my end-links.
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