Ford F-150 (2004-2008) :: 2006 - Hissing Type Noise From The A/C?
Jun 5, 2007
I have a 2006 screw with the 5.4 and I get a hissing type noise from the A/C. It cycles every 7 seconds and sounds like it's coming from the far passenger vent area. It sounds like it's recharging itself or something. I've taken it into the dealer and the first time they said it was the vacuum driven system then the second time they said it was the freon recharging itself. Is every 7 seconds a little to often? It seems to get louder the longer I drive. Needless to say after a four hour trip to the beach hearing this hissing every 7 seconds drives me crazy. It will hiss then stop for seven seconds then hiss again.
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have been lurking the forum for the last several months ever since I bought my 2008 F150. I bought it used from a dealership and have had it at their shop no less than seven times since I bought it in March, all for the same things.
The first thing I noticed shortly after buying the truck was that after the truck warmed up it would idle rough. My chief complaint by far, I took the truck in to be looked at and this is when all the real fun began. Similarly I had intermittent power steering that I asked to have looked at.
I was told the fuel filter was completely clogged. They cleaned it and assured me all was well. They also bled the power steering system because apparently someone had changed the PS pump and not bled the system afterwards. I got into the truck to leave and it was idling no better than when I dropped it off. I complained again and was told that "this is just how this truck idles" and called BS. They offered to have the throttle body cleaned for me the next day to alleviate any remnants of rough idle.
Had the throttle body cleaned the next day and took the truck home. After about an hour or two I was still thoroughly dissatisfied with the idle and called back to complain. I forgot to mention that I bought my truck from a Chevrolet dealer who had just taken it in on trade about three days before I bought it. Because I complained they offered to send the truck to a Ford dealership for further diagnosis.
The Ford dealership found fouled plugs, a cracked intake manifold and the water pump and fan clutch both had excessive play. They said those would create a rocking sensation which could be misinterpreted as a rough idle. Over $2500 the Chevy dealership paid them and I was called to come pick up the truck.
I didn't even make it out of the parking lot because the truck was whining something fierce. I couldn't believe no one QC'd the vehicle and complained again. Next morning I am called and they said that the Ford dealership had put the intake manifold gasket in wrong and it had been corrected and I could come pick up the truck.
I go pick up the truck and note that not only is the idle still not right, but now the truck is making a hissing/squealing noise when the truck hits 1800/1900 RPM's. Its strange because its not really RPM specific as it is specific to the pedal position. Accelerating or decelerating causes it to go away but its there nonetheless. Whats worse is that in highway driving at 65 MPH, the pedal is in just the wrong position and it hisses constantly. This sound never goes away...and once its been heard its impossible to unhear.
I complain again and they send the truck back to the Ford dealership. At this point I'm dealing directly with the Director of Service because mine has become a high priority case. The Service Director drives with me, confirms my problem and takes the truck himself to Ford. He drives with their shop foreman and they too confirm the problem.
A week goes by and Ford tells him its wind noise. This is complete bullarky because it happens whether I'm going 20 or 65. He calls them on it and they keep the truck another couple days. They call back and say the truck has nothing mechanically wrong with it and that they are done. Service Director goes and picks up the truck and takes it to a second Ford dealership.
Three days go by and they call and claim Eureka! We've found the problem! Clogged catalytic converter causing air flow restrictions. They replace two converters and I go to pick up the truck. It runs like garbage. Further the sound is still there. Call Chevy, leave the truck and take their loaner back home. Next morning Ford's Foreman calls and basically tells me that there's nothing else wrong with my truck and that he even reprogrammed the PCM (which is why it runs to bad all the time now I guess) to get rid of the idle problems.
Long story short here's everything thats been done:
- Cleaned a clogged fuel filter
- Replaced fouled plugs
- Replaced the intake manifold and gaskets
- Replaced the fan belt
- Replaced the fan clutch
- Replaced the water pump
- Replaced two catalytic converters
- Cleaned the throttle body
- Bled the PS system
- Reprogrammed the PCM and transmission control module
After all of this I still have a hissing sound when I accelerate (video 1:
It seems the truck runs worse once its warmed up and even worse once the AC is turned on. I'm sure he programmed the PCM wrong and thats what is causing the truck to run rough.
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I have an 08 F-150 5.4. When sitting still or moving, and turning the steering wheel to the right and only the right past center, there is a popping type noise somewhat like a screw driver down a washboard (for those who'll know what that is). I replaced the ball joints because I saw a slight amount of play, but the noise is still there.
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I recently bought a 2005 f150 fx4. With about 125000 on it. It started this noise coming from the passenger side. Does it while driving only. It sounds just like the casting noise on a fishing rod. What this could be. Not sure which tire its coming from. Maybe breaks? Doesn't change when breaks are applied though.
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When I have the A/C running in my truck it idles at like 900 RPM's if not 950 RPM's. It also doesn't appear to sweat like normal vehicles do. Most every other vehicle I've owned sweat when running the A/C it does but just not a lot. I hear it hiss like the drip is hitting something hot when I shut the door on the truck.
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Ok, so my 2007 F150 Lariat super crew cab has been at the dealership for a week now with them claiming that a part is on back order. How hard is it for them to get in a right front axle?? Granted, it was in there for other stuff too (which they can not give me a straight answer on if they fixed or not cause they are claiming the technician hasn't done the write up on it yet). My main concern is that they are screwing me around or that something happened to my truck. I am planning on stopping by there on Wed. morning after I get out of work.
Are these trucks known for bad front axles or was there some kind of a big recall on them?
Other things it went in for was the radio having the CD's cycle through when you first start up the truck, but does not happen like that all the time. Black plastic driver side front door hinge is cracked exposing the metal reinforcing part. Whirring/bearing type noise when you first start up the truck when it is cold and sits overnight (which they claim they can't hear yet waited to bring the truck inside and check it out at 3PM when they had the truck overnight from the night before when I dropped it off.) and the front driveshaft not fully disengaging when the truck is in 2wd. Almost seems like the vacuum locking hubs are still engaged.
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06 GX470 muffler exhaling white smoke for a while, now the smoke disappeared, however, a new hissing engine noise is evident. The noise increases with the revolutions of the engine and it never stops.
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I have a 2004 F150 4.6L... There is a slight hissing sound under the dash on the drivers side when you lightly press the accelerator and then stops. No matter what speed you are going as soon as you apply the accelerator it hisses then stops. There is also the same hissing , only louder when the engine is cut off. It hisses for about 3 seconds. What could be causing this. It has been idling rough since the hissing started. The check engine light is on and showing P0420 and P0430 codes . The cats were replaced with resonators so I believe that is the reason for the codes.
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So... I had the hood open and when i pressed the gas it makes a short hissing noise of some sort... I'll try and get a video tomorrow... it only lasts for about 1-2 seconds not sure if its just induction noise...
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I have a 06 touareg v8 air sus, loaded. Today was the first time towing my bass boat with this truck, and on the way to the lake, I keep hearing a weird noise, sound coming from the rear of the vehicle, something like a rubbing banging type noise. At first I thought maybe the factory hitch wasn't bolted on very well, but this is not the case(as I could tell not much to see under there) I tried jumping on the trailer to emulate the sound but this didn't work. Its not the trailer brake, which is a self actuating system, that checked out ok.
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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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I have a 2006 F150 FX4 and after having the 4x4 go out and replaced the front right IWE have fixed the 4x4 but still hearing a clunking noise.
The clunking noise started after the 4x4 went out and was really bad for awhile and then went away and has now come back really bad. It sounds like its coming from the front driver's side wheel area and clunks as fast as the wheel turns.(faster = more clunks).
I'm very new to mechanic stuff but enjoy learning and fixing things myself.
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On my 06 Mark LT I have a buzzing noise of outside air coming in the cab on the passenger side. I have had the grinding vent door actuator problem fixed in the past so I am not sure if it is related. The buzzing gets louder as I go faster, such as on the highway. Where to look?
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Ok, just asking a question for a buddy. He has 78k on the truck and the shocks make a strange noise. When one of us bounces the truck up and down on the bumper (simulating a load) the shocks "click". Now I looked and it looks like the bushing may be wore out, and the actual bolt that goes through the upper shock mount is touching the top and then the bottom, emitting the "clicking" noise. Is this just a normal wore out shock, or perhaps a defect? Just asking because I am not as familiar with suspension systems.
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I just bought 2006 f150 4wd . It make a grinding sound on both sides in the front end..it seems to be independent and when I slow and come to a stop, I makes a clanking noise like its locking something in.
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I just bought a truck, it has a whining noise while accelerating, stops while letting on the gas, does not do it in neutral even if i rev up the engine. Only whines while there is some force on it, ie.. accelerating, or going up a hill at any angle, and does it from about 10-15mph- atleast 60mph.
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Everything might be a slight exaggeration. But fuse 14 covers Backup lamp and day time running lights relay coil, A/C Pressure Switch, Redundant Speed Control, Heated PCV (5.4L), Trailer Tow back-up lamps, ABS, Reverse park aid, EC Mirror.
This is a 2006. 4.6L V8, SCREW. I don't have reverse park aid. When the fuse blows there is a loud screeching noise from under the hood. Can't identify it because the fuse wont go while I am sitting idling in the driveway. The parking break i9ndicator comes on, the ABS indicator comes on, Cruise control goes away and the A/C quits cooling but still blows. I assume EC Mirror means Electronic Compass Mirror. So I need to figure out where the short is.
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My 2006 f150 was making a noise that's coming from the engine. It sound like rocks in the engine. When I'm going 50-60 MPH the engine starts to make a sounds like rocks in the engine. What's happening. When I go about 40 it stops.
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After searching for the Prius that I wanted, I settled on a 2008 Prius Touring with 171xxx miles. The car was at a sales lot 300 miles away. After a few phone calls pertaining to the Prius, I arranged to meet the lot owner roughly 1/2 way in between for the purchase. We met. Owner said that several dash lights came on as they were driving to meet me. (Yes, I believe him.) He talked with his mechanic, and was told that the problem was most likely the ABS control module (p/n 44510-47050). Owner agreed to shipping me a good used ABS module and discounted the vehicle a bit. I drove it home.
The brake, (!), ABS, and VSC lights are "on"when the car is in the "ready" mode. The parking brake is not on. When I walk up to the car (with SKS fob in my pocket) and open the door, I hear a noise that sounds like water running through an outside faucet that's only partially opened. For identification purpose, I will refer to this noise as a "hissing" noise. When in "ready" mode , the ABS system "cycles", with about 4 seconds hissing, then about 10 seconds not hissing, repeated over and over.
In ready mode (under the hood), the inverter pump is humming away just fine, and the coolant can be seen flowing in it's reservoir. My biggest question is that I have read about others with the unwanted dash lights, but not any with this hissing noise. Does the ABS module replacement sound like it will most likely cure the problem?
And btw, after disconnecting both batteries and waiting for the proper time period, is it really necessary to use the insulated gloves? Years ago, I used Toyota repair manuals, and after receiving the Haynes manual, I'm a bit disappointed.
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My alarm started going off by itself and my truck would not start so we unhooked the horn but the alarm was still trying to go off making a ticking noise when the horn should have been honking. so we also unhooked the alarm. And it started right up. I've been driving it with those things off with no problem. But today it wouldn't start again and its making a ticking noise like the horn is trying to honk.
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I have just purchased an 06 long bed f-150 with high mileage on it. I am going thru it slowly as time permits. I had found the passenger door stop, not the hinges, to be making a "quite" squeaking noise as it is started toward a closed position. A simple drop or two of oil I am thinking, but it then really increases in sound. I then clean it off and apply a synthetic grease, still loud, maybe louder. I finally got it back to a "quite" squeak again by cleaning it. Use lubricant, or should I just leave it cleaned as it is now?
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