Ford Super Duty (1999-2016) :: 2011 - Hissing Noise Coming From Engine Compartment Under Acceleration
Dec 15, 2013
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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So after this weekend's hurricane my 2011 f-250 started to making a noise when I accelerate. I don't know if water got in some where. But there's no MIL light coming on.
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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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Where is the best/easiest location to run some wires from the cab to the engine compartment?
I need to run some wires for a remote start with alarm and a backup camera.
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I've got a 2011 F-350, when i'm on the driving over 60 mph i hear this humming or buzzing noise coming from around the dash. It kind of comes and goes depending on the wind direction or if I'm passing a semi. Thinking it may be coming from around the windshield seal.
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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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Bought a 2014 SD 4x4 in December of 2013 and this is the second time the big girl has been to the shop with A/C problems. First time it was the evaporator about three or four months ago. During the last few weeks of the summer I began to smell something strange (like band-aids) when the A/C was on and it lingered until the next re-entry. ALso, began to hear a slight hissing noise when the compressor was kicking in and out. They replaced the evaporator, smell remained as they said it was the refrigerant I was smelling. About two or three weeks ago the smell got slightly "larger", and last weekend she would not cool. This is the fourth time shes been to the shop with other problems such as the My Touch system..............
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I have a 2015 ford f250 xlt crew cab, 6.2, fx4 with about 1200 miles on it. My questions are, I have noticed a hissing or whistling noise while accelerating. I took to dealer and was told it was the throttle plates not closing all the way.I was told they all do this. Normal? Very annoying noise with windows down. Another noise I have been having is the brake pedal makes a popping noise while applying pressure to brakes. Dealer said brake pedal assembly was out of alignment. They said was out of alignment 1/8". After adjustment within a few days popping started again.
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I have a 2008 f-350 diesel, with 33k miles, I am getting a light thump or thud from the passenger side in the engine compartment, It does it when the truck is NOT moving as well as when it is moving. It use to do it only periodically but now it is doing it about every 1-2 minutes and it happened 3 times while we were sitting at a stop light.
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I bought a 99 f250 super duty with v-10. Ran great then I decided to hose off engine compartment. No pressure washer just running water trying to get all the dirt off now the engine sounds like its missing. Could I have a coil pack that got wet or is something else wrong.
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2002 5.4L... I have a humming noise that comes from my engine and wanted to see if any of yall knew anything about it. I sounds like it's on the other side on the driver side firewall near the brake booster. Once the engine runs for a bit it tends to start then. It'll start to hum then ill tap the gas to get the RPMs up a bit then its gone for couple miles then its right back on.
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I have a 2011 F250 Lariat, 6.2L V8. The past couple months i have noticed truck jerking/lunging during acceleration in the mornings usually between leaving the house and getting on the highway. Over the last 2 weeks the problem has progressed and seems to last longer. I have tried fuel injector cleaner with no success. This morning was the worst so far and after all this time i finally saw the maintenance "wrench" pop up on the on dash.
This was good news to me hoping that a local shop could read the code. However, when i dropped off my daughter and started back up the "wrench" went away. After warming up the problem seems to go away. This morning was so severe i lost speed and felt like the engine was going to stall.
I feel like this is related to the fuel system (injectors/pump/filter) but also haven't changed the spark plugs yet. My truck has 72,000 miles and otherwise is in good shape. How I should move forward?
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Recently purchased a CPO 2009 F250SD 6.4L. Happy with the truck overall but this AM I noticed a slight burning plastic smell so I opened the hood and looked around closely. Didn't really find the culprit(I don't think) but noticed that the engine compartment heat shield/barrier appears to be falling down above and behind the turbos (pictures linked below). How big a deal is this? Would it be covered under the CPO warranty? It almost seems like a safety issue. I also wonder if the insulation material, now exposed without the metal reflector material, is what is causing the smell....
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I've been noticing a low pitched humming noise coming from what sounds like the passenger side of the engine. it happened only occasionally at first but within a week of first hearing it, it is now almost all the time. here is some specifics...
-the noise always starts about 2 or 3 seconds after starting the engine.
-the pitch or loudness does not change with increased rpms or with truck in gear driving.
-the noise randomly stops for no given reason whether driving or idling then starts back up again.
-there are no performance issues while making noise, no dip in rpms, nothing. still runs the same
I've listened with the hood up and cant identify where the noise is coming from. is this something i need to get fixed asap or no? I've got a 2001 f250 5.4 with a manual tranny ....
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I have a 2011 RAV4 with 122,000 miles. For the last few months I have heard a fluttering noise coming from the engine compartment, usually at in-town speeds when I step on the accelerator gently, for example to maintain speed on an incline.What could this be?
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I had a buzzing noise on acceleration so today I cut all the heat shields off the exhaust system and also bent the bottom of the transmission inspection plate toward the front of the motor. It cured the buzzing noise but when I started the truck up there was a new rattle kind of sound, so I looked and found my y pipe is cracked where the passenger side pipe comes down off the manifold and connects to the pipe that goes to the cat converter.
I don't want to get a whole new y pipe could I order the spd Y pipe and that should work out right? it should be cheaper than a whole new y pipe aswell. I filled up the crack (it cracked 360) with weld but it was tissue paper so I would like to fix it before winter. I also still need to do my passenger side manifold studs and weld a new muffler because I found the rear half of mine is rotted off lol so I will probably do this all at one time.
I'm probably just going to pull everything manifolds and back off the truck, I have a feeling theres a bunch of rust sitting in front of the cat or muffler making the new rattling noise. Also in all my years of wrenching I have never figured out an easy way to get the exhaust off those rubber hangers, I always try to spray wd40 in there to get them to slide easy but always end up tearing them while trying to get them off.
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My 2006 F350 is giving me grey hairs. I'm trying to figure out what's going on with it. I have been getting an occasional (more often than not) grinding noise from what seems to be the front of my truck. It will do it from a stop, under light, moderate, or heavy acceleration. Doesn't matter. If I let off the throttle momentarily it will stop until it shifts and will grind again through all shift points it seems.
Logic says it's got to be the wheel bearings or locking hubs. I recently did both on both sides to no relief. Because this is an 06 it had a different hub set up then the previous years which I've read a lot of info about (needle bearings). It doesn't make a lick of difference if hubs are locked or on auto. If in 4x4 (ESOF) or 2wd.
As mentioned I replaced both wheel bearings with FORD parts and both locking hubs From FORD as well. (Small fortune). Axle u joints seemed tight. Greased me up but no play.
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2012 F-250 6.2 gas 4X4 SC/SB: when I run WOT, or near that, from a slow speed, I hear a short "hiss" between the 1-2, 2-3, and i think 3-4 shifts. I can also feel that the engine eases up quite a bit during the shift, and it is kind of a slow, soft shift. It has about 2,000 miles on it. I bought it in March 2013 as a leftover (great price!). The door sticker says it was manufactured in 4/2012, so it sat on the lot for quite a while before i bought it. But i don't remember it doing this when it was newer (~500 miles).
With the lite weight of this configuration (it is an XL so it isn't even carrying around 4 speakers ha ha), and me rarely carrying a very heavy load (yet) or towing anything, I rarely have to step on it very much in normal driving... it hardly ever gets above 2,500 rpm unless I am just running it faster for fun.
The hiss and slow shift happen at any transmission temperature. Of course, it never has been above the left side of the "gear" pic on the temp gauge, where it always is after full warm-up. Well, I'm hoping it is just shifting soft like this because it has "learned" my lite-foot driving style (even when I'm in a hurry of course the engine rarely has to work very hard).
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My 11 cc lb 4x4 6.2 has a clunking/loose sound coming from the front end. It is prominent when going over small/medium bumps but not so much large bumps. I have had my local dealer and a couple local shops look at it and they all say everything checks out. It definitely seems like something is loose in the front suspension. I just put new Gabriel max control shocks on all four corners. I have no play in wheel bearings or ball joints. Tie rod ends also look fine.
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I used the a/c for the first time this year on my 2013 F250 and heard some noises I don't remember hearing before. When the a/c(or defrost) is on every 12 sec or so I hear a hissing sound that lasts for a couple of seconds then goes away. Is this the compressor cycling and if so is it normal to hear it inside the cab?
I know it has to do with the a/c because if I shut it off as the hissing sound is being made the sound will instantly stop. Other than the noise the a/c works fine and blows cold air. Also, if it matters I have the standard control panel, not climate control.
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I have a 1999 F250 SD V10 4x4. I recently had a transmission installed and the truck is running erratic. I have an engine miss (sometimes when idling, more so when in drive and foot on the brake). I say sometimes because there are times it will not miss and the engine runs smooth. The transmission shifts a little strange and sometimes hard.
I am getting a code reading that says my TPS is faulty, but I installed a new one a few months back.
The engine is running rough (jerky on acceleration) especially when driving. I was wondering if I should take it to a shop and have them flash the computer to reset it?
I also remove the AC compressor a while back (bad clutch). I installed an aftermarket pulley.
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