Ford - Explorer :: 2009 4x4 - Low Growl Hum Noise And Vibration Felt On Gas Pedal When Accelerating At About 40 MPH
Dec 28, 2012
I'm the original owner at 50k miles with Ford ESP warranty. Drive-train still under original warranty. I started noticing a low growl hum noise and vibration felt on gas pedal when accelerating at about 40 MPH. At first I thought it was the road or tires.
Then a few weeks later on a slight hill the growl-low hum was accompanied with a much more noticeable/louder growl/grinding noise in a heartbeat like rhythm. Took it to dealer and they first said it was the transmission. It was replaced.
Then they said the noise was from the rear differential/axle. It was rebuilt, oiled and sealed. Taking it back today for another drive with the mechanic to show them again the problem persist. What it may be? Also, my MPG has dropped significantly from an average of 18 to 13. This is while driving on 4x4 Auto.
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I got my 77 ford truck w/four wheel drive half ton with a np435, 351M and i was wondering if a bad or worn bearing can cause vibration. i can feel it by the pedal when i accelerate from 50 to 65. I don't know if that's my trans or maybe the pilot bearing?
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2007 explorer makes a grinding sound I feel in the gas pedal upon acceleration. Also hesitates when acceleration on highway.....
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5.0L ... I'm having one of those moments, you know after you do a mod to your truck and all of a sudden you notice something about your truck that could have been there all along but now you notice it as something new? Ok earlier in the week I had my exhaust resonator removed and replaced with a straight-pipe by a reputable exhaust shop. IMO the work looks to be pretty good for what it is.
That said I have always been nervous about getting exhaust work on any vehicle because it always seems like tampering with or removing the OEM plumbing for aftermarket or custom work tends to develop a vibration at some point.
So here is what I've noticed over the last couple days, when driving my truck it is extremely smooth, almost like glass. When I come to a complete stop say at a traffic light about 1-2 seconds after making the complete stop I feel this slight harmonic vibration in the steering wheel. For those of you that have an iphone it would be like having your phone bolted to the steering shaft somewhere and it on constant vibration if that makes sense.
Just to prove it only happens when I'm sitting still and idling in (D)rive I sat in my driveway with the truck idling, set the park brake and released the brake pedal holding the truck in place in (D)rive with the parking brake. No vibration, smooth as glass engine idle, as soon as I put my foot back on the brake pedal the vibration comes back. It's as if the extra draw of applying the brakes puts an extra load on some sort of accesory drive or componant under the hood and the result is this harmonic vibration.
Just so everyone knows, the vibration is very noticeable to me because I drive the truck daily, most people wouldn't pick it out if I didn't tell them first. Case in point if my wife drives the truck she can't feel it unless I tell her what to look for. There are going to be some of you that just say my truck doesn't do this and has had a smooth idle for XX,XXX miles I believe you but let me know now that I have explained exactly what to look for. Like I said for all I know it's done this since day one.
I have a feeling that the straight pipe might have been welded in slightly longer than the oem section that was removed thus putting more tention on the exhaust and engine if that makes sense, the end result being a slight vibration?? I know that manufactures put these little rubber bushings along the exhaust system on cars/ truck to absorb harmonic vibrations and for all I know my resonator might have been designed to balance out harmonic vibes in the exhaust system as well as quiet down the exhaust.
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2010 Corolla 1.8 automatic. Accelerating at highway speed (2800-3200) rpm a low frequency shudder/vibration is felt in the floorboards. Goes away of you let up off of gas pedal. No vibration at idle, runs fine all other times. Most noticeable when accelerating under load (ie going uphill) and at highway speed. Trans mount visually intact. Ditto engine mounts. Cv axles less than 1 year old no rattle upon shaking.
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The other day I pulled a fella out of a ditch. It was a dulley 350 with a lowboy trailer and a small dozer on it.
Well, after finishing and driving away. I inadvertently left the truck in 4x4 while driving on wet pavement at speeds ~30 mph. What I noticed was: when I let off the accelerator there was a low growl/vibration noise coming from the front/under the floorboards while the truck coasted to slower speeds.
I have never had my truck A) in 4x4 on clear roads or B) at speeds above 10mph in 4x4. Maybe they all make noise at low speeds in a quite cab in 4x4. I wouldn't know, I've never driven it under these conditions.
So, can you hear your truck in 4x4 when not giving it gas and coasting on the road?
I did not think I put the truck through too much while pulling that fella out, but now I'm wondering....oh, and I at one point I coasted forward and ran over the towing strap that was attached to my front pull hook and it made a HECK of a noise...could that have done something bad?
4x4 still works, and everything seems/sounds fine otherwise. I might just be hearing the front end putting friction on the transfer case and I can hear it in the tranny as she coasts to a stop (it goes away as soon as I press the accelerator at any speed) but like I said, I've never noticed this before.
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I have a 2005 F-250 4x4 and recently i noticed a grinding noise while driving and then when I come to a stop I hear a clunk and the grinding stops. It sounded like it came from the driver side wheel so I changed the wheel bearing assembly. About 3 days later it started again. Now it sounds like it's coming from both sides. I am at a loss. The hubs are unlocked. It's hard to describe the sound but to me it sounds like 2 gears with a large chain rotating on them. I hope that made sense. The clunk can be felt in the brake pedal.
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Every once in a while, I'll feel a vibration in the gas pedal. It happens under acceleration, and typically if I'm pushing down and it has not downshifted yet. Then once it downshifts the vibration is less noticeable.
I know there have been issues with the Electronic Throttle Control on these drive-by-wire trucks, particularly on the Super Duty trucks.
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I recently had a leveling kit installed on my 2014 f150 super crew 4wd. When I picked it up, I heard a humming in the front end that ended up being a bad iwe actuator. I took it to the ford dealer and they replaced it. No more humming, but now I have a very annoying vibration in my gas pedal that can also be felt in the floor board and gas pedal. I've had it aligned. I thought it might be my front driveshaft so I put it in neutral while driving and vibration is the same. It gets worse when I get up around 70mph. I also feel small jerks in the gas pedal at these speeds along with the vibration. It vibrates worse under heavy acceleration as well. Cause I can't wait to set my cruise every time I drive it bothers me that much. Only has 10,000 miles on it.
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New, 2 month old 2015 CC, gas 4x4 with standard bed. At 50-55 I have a rolling vibration, or it can even be explained as a slight growl. Seems worse since I upgraded to 285/75/18 Toyo AT's and new wheels. If i speed up to about 60, goes away. If I pop it down to 5th gear, it seems to go away, however, I need to try this a few more times to make certain.
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Ok here is whats happening. 2003 F250. When the axle gets warm and I turn a slight left or right turn I get a bad vibration and Growl from the rear axle. I have changed the fluid and added two bottles of the Ford Limited slip fluid but the problem just keeps getting worse. The question is am I looking at limited slip clutches or do I have bigger issues. I had new Ford 4:30 gears installed about 3 years ago and don't know if they put new clutch pack in or not,
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2009 FX4... Every once in a while, I'll feel a vibration in the gas pedal. It happens under acceleration, and typically if I'm pushing down and it has not downshifted yet. Then once it downshifts the vibration is less noticeable.
I have had the mechtronic unit replaced due to harsh shifting and the vibration was there before and after that was replaced. The drive shaft was also replaced due to a click/clinking noise and the vibration was there before and after as well. The harsh shifting and clinking noise was fixed with those repairs, but the vibration is still there. I notice it more when I am towing.
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I have read up quite a bit on this whistle that the 4.0 liter SOHC engine makes while accelerating. Sounds like something in the TB or intake to me. There are no definitive answers to the whistle that I could find. Need to resolve this whistling noise? It's a very high pitched whistle only while accelerating at about 1/3 throttle.
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I have a 1996 Explorer XLT 4x4 and I hear what I call barring making a noise when I accelerate. If it is the bearings in the rear end how expensive is this to fix? I love my truck but I'm on a fixed income and scared to death. I will not drive it until I get some sort of idea as to what and where I should take it.
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I have a 2009 LX and I have been experiencing a vibration in the gas pedal on acceleration. Its not horrible, however it would be great if I could find the culprit and get it fixed. What was the cause. The LX has 96K
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I couldn't avoid seemingly a huge pothole when drove at night, and the sound was really awful. After that, I could feel vibration through the steering. The ride isn't the same anymore. What causing the problem? Try to get the car to the tires shop tomorrow. don't wanna bring it to the dealer. Bad experience when I tried to get an alignment after installed vwr lowering springs.
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My wifes 08 santa fe awd has started to make a subtle clunking that I can feel through the gas pedal. At first I thought it was the AWD system but now it seems to be getting more frequent and noticeable.
I have searched and see that the front stabilizer bars have had issues with this year. Is the thump I am experiencing possible a sign of this?
If so how long would that be covered under warranty. The 3/36 has just expired on us.
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I got the attached warning today on my 2010 LS600. The pedal felt a little soft after the warning. It kept popping off and on, dinging every 30-40 seconds.
I checked the brake fluid, it was full. Car has 36k
I had it towed in to Lexus and they couldn't get the warning to come back up.
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I have a 2003 F150 manual 4WD with 4.6L engine and 165000 miles. When i am driving i feel a vibration in the steering wheel and on floor board that intensifies when i press the accelerator. I do hear an irregular humming that sounds like it is coming from the driver side front. I checked the wheel for any play but it was very tight. i check tie rod ends, ball joints no play. i recently changed both u-joints on the rear shaft and the bearing hub on the passenger side front. Also, the steering feels a little 'wobbly' when i make sharp turns. it almost feels like it is giving. What else should i check?
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I test drove the sc 430 the other day, I found it very smooth and very soft ride. I noticed that when I accelerate the car feels heavy as if it lacks the torque. Is this normal?
Also, the steering felt loose at high speeds above 60mph. Is this normal?
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This vibration with sound on my brake pedal started after i change my stock intake to takeda. Well, Not all the time this thing happen, only when im in this kind of situation:
Pressing and hold my brake pedal at full stop and the gear is set to Drive, then, when the RPM goes down to below 900, the vibration with sound started, and it only disappear when i release my brake or when the RPM goes up automatically.
But, this only happened with this kind of situation when my car already heated up (like driving it more than 10 mins) and the temperature is at stable level.
While my car is just started driving, or its not already heated up, no vibration is happening.
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