Ford F-150 (2009-2014) :: 2010 - Strange Noise Like Vacuum Leak When Warmed Up?
Oct 17, 2015
I have a 2010 F-150 FX4 SC 4x4 5.4l w/ automatic that has 52,000 miles on the clock give or take, unmodified with the only exception of a remote oil filter relocation unit.
I bought the truck with 48,000 on it and did not have this noise, I've had it back to the dealer and their best mechanic went for a ride with me and the noise was duplicated and the mechanic had the deer in the headlight look on his face and said he'd never heard anything like that before. I've searched the net for anything similar like this but have not found anything. The noise rears it's ugly head after the truck is warmed up and it first started around 55mph and went away at 65mph , then re-emerged at 75mph and left again at 82mph.
Tried the usual test things while noise was present first loading and unloading the steering left and right, (wheel bearing) no change. Next I applied the brakes (caliper rubbing) no change. Then I tried shifting to neutral (transmission or carrier bearing) no change. I also tried shifting into and out of 4x4 (transfer case) no change. If I speed up above those speeds or slow down below them, the noise disappears.
Recently... the noise seems to be more consistent and when it's present at 80mph and you let off the throttle, the noise is present all the way down to 55mph then magically goes away. The noise to me sounds like a vacuum leak in a rubber hose or a dry spinning shaft in a bushing, sort of a low hum that sounds like it's coming anywhere from the motor to the transmission area.
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2009 f150 4x4. My front hubs are ratcheting, I probably have a vacuum leak somewhere. Any trick to find it? I had to drive about 90 kilometers to get home, hope I didn't ruin anything. I don't have a vacuum pump, but I have a vacuum gauge.
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This has happened about half a dozen times while accelerating. It sounds sort of like it's between a scratching noise and a rattling noise. It's only happened at highway speeds 50-60 mph while accelerating and will stop when I let off the gas. There have been a few times that i can get it to come back if i step on the throttle again, but will not duplicate every time.
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Just had my 2010 F150 in for a loud knocking noise when the truck has warmed up in drive and rpm up to about 800. I can't hear the noise when I disconnect the passenger side vtc selonoid. The Tech who worked on it has recommended replacing the motor. His troubleshooting on the ticket says he removed the coil from the number 4 cylinder and the noise he hears goes away. I just can't see that the motor is bad.
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2010 / 5.4... Attempting to trace the oil leak... thought it was power steering high pressure line but now I think that's just dirty from oil leaking through rad & blowing onto the steering line below. Looks like difficult to replace - anything I need to be cautious / aware of that's replaced a rad before?
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I have a 2010 fx4 150. I have a water leak threw my sunroof?
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My 2010 F-150 Lariat 5.4L 2WD Ext Cab with 76,000 miles is leaking power steering fluid. I traced it down to the cooling coil in between the radiator and the transmission cooler. It does not look easy or cheap to get out of there. Stop leak scares me a bit...
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Got a 2013 F-150 with a start problem after warm. If I let it sit with battery disconnected it will start up. When it will not start it acts like a no spark issue.
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I have just purchased a 2010 FX4 5.4l on 5/4 and just found a leak coming from above the passenger side frame horn. It looks like it may be from the condensor but im not 100 percent certain. It is an odorless oil not condensate. It is a slow drip that i found after running the truck for a short time. the puddle it left was about the size of a bottom of a drinking glass.
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I have a 2013 F150 FX4. When the temperature is below 45 and the truck is cold the right high beam wont turn off if used, until the truck engine is warmed up.
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My 09 FX4 Screw has developed a strange thumping sound coming from the undercarriage within the last month or so. Very noticeable when turning on even terrain. It's just barely under warranty and I am planning on taking it to the dealer.
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My EB makes a moaning noise when I am accelerating up to speed when driving "old Man " style. I guess its the turbo blow off valve(s) like used to happen on my old 7.3's. I hope its not anything to worry about. The truck runs string and gets 18 mpg mixed driving. I do get bon it a lot too.
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2011 F150 SCREW FX4 6.5' box Ecoboost... All of a sudden I had no power assist for the brakes.
In a "unit down" situation waiting for a replacement vacuum brake pump assembly from Ford? My truck has been stuck at the dealership for going on three weeks now waiting for this part. No one seems to be able to say when the part will be available, which suggests to me that Ford is waiting on the supplier to produce more.
They're paying for a rental, but the 2013 Escape isn't anything near my F-150. A week maybe, I could understand, but on 6/11/2013 it's going to be three full weeks since my truck was towed into the dealership. How many of these things are on the road? How do they not have this part readily available?
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I have a 2012 Ford Supercrew, 6.5 FT bed, Ecoboost that I got in April. About two weeks after I got it, someone ran a two way stop right out in front of me and I hit them on my drivers side front. Damage pretty minimal considering their car was totaled. I had my truck back from the body shop about two weeks later. Everything was great.
About 3 weeks after I had gotten my truck back, I began to notice a strange noise that sounded almost like someone was opening a door really slow. (more of a rapid popping sound than a high pitched squeak) It only happened on acceleration and the sound was coming from the passenger side right up next to the firewall. I figured it was something that wasnt tightened correctly from the body work. I took it to Ford for warranty work and told them this story...they werent concerned about the wreck. They suspected suspension...I agreed this was probable.
They checked and tore down the whole front suspension on the passenger side. They ended up replacing that whole side with brand new parts, new shock, upper lower control arms, new coil, gaskets, etc. Problem was still not fixed.
I took it back to the body shop where it was worked on and had the foreman ride with me so he could listen to noise. He said that he believed it was the suspension as well. He said that most of the bushings that sit on top of the coil come from the factory sort of dry...he suggested breaking it down and putting teflon grease between the bushing and the top of the coil tower that mounts to the frame. He said he has had luck with that.
Long story short, the driver side began doing the same thing. I took it back to Ford and they agreed to try what the body shop foreman had told me. Still no luck!
My front suspension has been replaced and broken completely down three times, tightened back up to factory specs, and re-aligned...and still no fix!
It sounds like a truck with 250,000 miles when I first accelerate, and I can still here it a cruising speeds when I hit bumps (air has to be off to hear it well)...
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My 2011 F-150 Super crew eb has started to have a knock that comes from under the dash in the radio area. It doesn't occur every time it's started. It is 3 or 4 knocks that sound like a plastic gear slipping, then it stops. I am thinking something in the vent/defrost door. Is it vacuum operated or electronic? Any thoughts?
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Having issues with the vacuum falling off to the hubs when driving and light throttle. I know makes no sense,but kept fighting this thing making vary harsh rubbing sound since I bought it used and I know its the little collar on the back side of hub that engages to hub to make the 4x4 connection but it looses vacuum when driving and very light throttle/load.
I verified using a vacuum gauge ran inside vehicle when driving. Checked all lines and hubs,everything good. Solenoid has vacuum when running but seems to quit when light load or throttle and as soon as vacuum falls off then the collar starts to engage and rubs but doesn't fully engage. I don't get it. Unless there's something on the computer side of it shutting off the solenoid or something.
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Plugged in my SCT when I got home, P1450 code. "Unable to bleed up fuel tank vacuum" I did a search here but nothing in the 09-up section.
P1450 Error Code Excessive Fuel tank Vacuum - Ford F150 Forum - Community of Ford Truck Fans
I'm still googling but it seems I need to start by cleaning out the lines and evap which I'm not sure where its located. I'm going to get on a creeper tomorrow morning and have a peek but just wanted to see if any of my brothers ( or sisters ) here have had this issue. I just turned 35K miles.
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I have a 2010 f150 crew cab with the 5.4 and I've noticed a ticking noise when I drove through town the other day. I got home put the truck in park and the ticking went away but when I put it in drive, held the brake and gave a little gas it came back even though I was not moving at all. What could this be?
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I noticed tonight my 4.6 V-8 Aviator is acting a bit sluggish, not bad, but still noticeable. I'm pretty sure I heard a hissing noise, almost like a vacuum leak. Would that vacuum leak caused by the pcv valve cause sub-par acceleration? I'm going to check the pcv valve in the morning. is there more than one pcv valve.hose on these 4.6 V-8's? I'm asking because I was reading about the pcv hose/valve in these 4.6 V-8's, some people on this forum had vacuum leaks caused by the pcv valve failing, being that it connects to the intake manifold.
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Just got a 2010 lariat supercrew...I put 1900 miles on it so far. When slowly letting off the accelerator (doing between 20-30 mph and between 1000-1500 rpm) there is a distinct rubbing sound for about 1-2 seconds...it is now sounding more like grinding now...took it to the shop today...(they couldn't duplicate (because service rep documented 60 mph instead of the 20-30 mph...went back at the end of the day to ride with the tech, and i was able to duplicate so now they have something to work with....also the noise happens mostly when the path of travel is either level road or slight to great incline..it has not happened on a down slope....
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Well I guess I going to the dealer on Monday. My F150 5.4 / 116,000 miles Has had a ticking sound on the passenger side for a week or so. Last weekend I cleaned the Mass Flow Sensor which made no change in power. I'm afraid to see what the dealer is going to say!
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