Ford Super Duty (1999-2016) :: Sudden Hissing Noise For About 2 Seconds Happens Once Every 5 Minutes Or So
Jan 28, 2016
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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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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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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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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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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6.2L F250 truck is just shy of 60k runs good however on cold startup there's now a pretty loud ticking noise for a short period (30 seconds) until it warms up then it slowly goes away. Once its warmed up there isn't much of anything.
Did these have exhaust manifold gasket problems like the 5.4? Hoping that's it if not, any other common problems that would make that ticking noise and then go away quickly once the engine is warmed up.
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Have a Whistling or hissing sound while accelerating? My 2015 6.2 seems to make this sound while under load. I took to dealer and they claim its the throttle plates not closing all the way. Claims this is normal, but to me it is annoying. Just would like to know what others think.
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My 2010 F250 V10 120000 mile has a sudden loss of MPG. It usually is around 12 MPG but now I'm at 8 I checked the air filter and its clean I checked the tire pressure and there all up to pressure. I'm probably going to try the fuel filter next.
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Last night was getting down to freezing. I drove out of my buddy's driveway, stopped to close the gate behind me, put it in gear and started to drive away, about 5-10mph. I left off the gas as I rounded a gentle curve, then got back on the pedal as I exited the curve. All I got was a revving engine, as if I was in neutral. Checked to make sure I was in gear, and same result. I stopped, engine running, and put it in park, and then back into gear. Nothing. Drive, low, Reverse nothing. I did see the rpm change slightly. engine runs normally.
No fluid loss, no mechanical noises indicating something breaking. No weird smells. Fluid level is as good as I could read on that crappy trans dipstick. Truck ran flawlessly up until that moment. the transmission is a BTS with about 100K, so I'm fairly certain it's not the mechanical diode notorious for that year. My problem description does not seem to fit the failed diode anyway. I did run across a post that better matched my problem description and that was the transfer case motor. I have 4WD, but was not in 4WD at the time.
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I am trying to diagnose a problem with a friends 2002 f350 7.3L truck. the engine has approx. 140,000 miles and is all stock, no programming or aftermarket parts. Anyhow, he said driving down the road the other day the engine all of a sudden lost power and the truck wouldn't go any faster than 45mph. he said taking off from a stop sign, the truck has no power and takes forever to get up to 45mph. after this issue began, he has changed the fuel filter & screen, air filter and fuel pump. The check engine light if OFF, no active fault codes.
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On the highway doing 100 mph. during af take over, my Ford F-250 6,4 Super Duty 2008, lost nearly all power. (now it is like driving my old hummer h1)
Engine and car runs/starts great, only 10 minutes uptil 60 mph. now.
My mechanic has given up. He checked following:
EGR = OK
HOSES = OK
ERROR CODES = NONE
INTER COOLER = OK
PARTICLE FILTER CLEAN = OK
TEST WITHOUT EXHAUST = NO DIFFERENCE
FLUIDS = OK
Hopefully something I can fix with my hammer. The car has 85.000 miles on the clock.
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So I was traveling thru the grapevine on the 5 Fwy and no problems. Made it to the top didn't over heat. Then all of a sudden it lost power. Pulled over and it stopped running. Won't start. Fuel is pumping, I took off the fuel filter and turned ignition on and it filled up.
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I drive an 08 f-350 with 120k no tune or deletes..(yet). I was driving home yesterday when I all of a sudden I have a lack and power. I then notice i have no boost at all. I heard an exhaust leak and instantly checked my boots on inter-cooler pipes....
After farther inspection, the bolt fairy came and I am missing some bolts on my up pipe where it meets turbo. Is this break in vacuum system the reason I'm having no boost? What is easiest way to get to up pipes without removing cab? Where did the bolts go? I got to get this fixed because I need truck to get around town.
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2005 6.0l PSD. Driving flat road pulling 8K trailer. Not pushing it at all. Sudden air hissing sound on (seems like) passenger side of truck. Black smoke pouring from tailpipe. Check intercooler pipe and is ok. Can't see anything that is loose. Only 8 miles to the campground so limp down the road at 30 MPH which is all it will do. Hissing sound is remarkable predictable in that it is repetitive every 5 seconds or so. Lasts for maybe 2 seconds then stops the repeats.
There is no turbo boost either on the dash gauge or the Scan II gauge. Shutting the engine down, there is no turbo wind down. Scan II show no codes. Check everything I can reach and find nothing extraordinary. Tried starting a driving it today and had boost for a minute only then nothing. Blowing white smoke too. Check the oil and it is oil. Check the radiator fluid and it is oil free. Running low on fuel and wonder if I have a water in the fuel problem. However, don't think that should effect the non functioning turbo...
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I have a 2001 f250 super duty extended cab with the v10. Over the past week it has been running fine and it will all of a sudden lose power and dies. I've been able to start it back up once right away and a few times it started up after a few hours of messing with it.
So, after the truck dies it will crank and crank but will not start. We have checked fuel pressure and nothing. Then we applied direct current to the fuel pump and it turns on. Then we applied direct current to the fuel pump slot in the fuse box and got a fuel pressure reading of 40 psi. But when we crank we have no pressure.
When we apply direct current to the fuel pump slot in the fuse box the truck will only crank and not start.
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My excursion suddenly lost power after sitting in a long traffic jam. I have a scan gauge II set up and didn't see any signs of over heating however when I went to accelerate back up to highway speed my motor revved up to 3000 rpm and just lost power I ended creeping on the side of the road at about 15 mph and barely maintaining that. The motor was not willing to revv up. I reached a spot to pull over and shut it down for about 15 minutes and started back up and drove off with no noticable issues. I have 211,000 miles on this motor and I am going to change my coil packs, I think they have been there since the truck was sold new....I changed four of them to address a miss and have six left, I will also be changing my fuel filter. We are about to pull our camper across country....about 1400 miles..
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The truck runs great when first starting up and driving, after 10 min a cylinder start to miss the same one ..
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Have been having issues with my truck starting for the last few months. Happens cold or hot. When I try to crank all I hear is a buzz and the starter trying to insert, but it doesn't. Just a tap. Has been happening the last few months here and there. Have always started after 1-2 minutes of trying. Yesterday went for a 60 mile drive and car didn't start after I parked. Tried for a good hour and decided to leave it and it fix the next day. In the morning, the trunk started on the first crank.
Drove home and parked. Tried to restart and nothing. Went to work and came back at night and nothing. I was just going to take out starter and have it tested and replace if needed. Also, will replace the starter solenoid. Have replace both of these the last 2 years with parts from Napa Auto Parts. Have a lifetime warranty for starter. How often do these parts need to be replaced? What my issues are or what else should I replace for preventative maintenance?
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My A/C has been working fine up til the end of last season and getting worse now. It comes on and blows really cold, then after a bit a electrical connection gets hot and looses contact somewhere. I can turn it off for about 5 miles then turn it back on, May last the rest of the day, may only last 10 min, then turn it back off, wait 10 min, turn on, does great! I thought it might be a dampener door,, but does the same whether in defrost, regular A/C, or max, so I think it has got to be a electrical connection getting hot and loose.
2004. F250 FX4. 198,000 miles,,,, runs great,,, just a little hot driving!!!
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have a new 2015 SuperDuty that when you start engine, then turn radio on,,,radio will play for 3 seconds , go off for one or two,comes back on repeats process for four or five minutes before the radio or CD player plays on on continuous basis,,,is this the way the new radios operate?
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