Ford F-150 (2004-2008) :: A/C On Seems To Cause Engine To Bog Down / Howl / Moan And Growl?
Oct 14, 2012
I have had an engine growl / howl problem that seemed to disappear with the cooler weather. However, turning the A/C back on yesterday, the growl/howl re-appeared. Is the A/C compressor bad? A/C clutch bad? Heading out on a long distance trip at the end of the month.
When the moan/ groan comes from the engine bay intake area, I have to back off of the throttle in order to re-accelerate... Gas pedal seems to become dead...
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5.4L... My truck has a momentary moan / growl / bog down issue. It happens at town and highway speeds and usually when I have cruise on OR when I lightly apply the gas peddle. It moans for a few seconds and seems to bog down then comes out of it and carry's on its way. You can hear it plainly while driving even with radio on. I have a regular muffler on the truck but when this happens, it makes it sound like I have a catback on it.
Things i have done...
- New air filter
- New oil/filter
- New fuel filter
- Ran techron injector cleaner through tank of gas
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I have been having a strange engine moan now for a few weeks. It happens on light acceleration before the truck shifts at all speeds. It can be faint or extremely loud and I can keep it doing it if I keep the throttle in the same spot when it starts. Also now lately when it does it I can smell exhaust in the cab. No codes are being thrown...naturally
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2002 Screw 4X4 with 5.4 ... Truck has 180K miles.
Howl / Growl noise we think from the front. Both front wheel bearings have been changed without improvement. A rotational issue as it only does it when moving and still does it if you put it in neutral and let it coast.
2 WD or 4 WD does not seem to make much difference. Been checking and testing everything without success. Drive shafts and u-joints are tight etc.
How to test it? It was my truck and is my son's truck now. They have run it on a hoist and tried to determine where the sound comes from. Going to try that again but it might be different when the wheels are not on the ground and there is no weight on things.
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My '04 4wd has a pretty loud rear end howl, it is a LS but don't think it's an LS problem, no noises or chattering when turning. Howling is loudest at 50 to 60, but some noise at all speeds. I don't mind tearing into the rear myself, but not sure if I could tell what was wrong just by looking, i suppose bad bearing might be obvious, but not sure how to diagnose gear lash tolerances. It only has 107000 mi. and is an 8.8 rear I believe.
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I have a 2005 Supercrew 4X2 with 110,000 miles on it. Lately I've noticed at 30 mph and up if I steer to the left I get a growling noise from the left front. When I straighten up or steer right it goes away. I don't feel anything in the steering wheel or seat of the pants...just this growling noise during a left steer. Tires are about half wore out...I went ahead and rotated them to see if the growl moved. It didn't, stays in the left front.
Does that sound like the bearings in the rotor are on the way out? It won't stop raining so I haven't had a chance to jack it up and see if I have I have play in that tire/wheel. I thumbed through my Haynes manual and it seems pretty straight forward to replace the rotor. New rotors/bearings, one time use nut, might as well do pads while I'm in there, torque nut to 275 ft. lbs. Am I on the right track? Any other way to diagnose this growl? Is the R&R of the rotor as easy as it sounds? Tips or trick, things I should know that Haynes isn't telling...
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I hear a rattle or growl from the engine at 2,000 - 2500 rpm. Car performs fine. What it may be?
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My wife just got his car and she loves it!. its a 1.8t 5 speed. Runs and drives awesome. She had 2 new beetles before this one with the same motor but they both had 2 1/2 exhaust from the turbo back. The jetta will be done soon but it has this slight growl when its idling sometimes. Doesn't seem like its every time or may be it seems more when its warmed up. We had just changed the timing belt and tensioner and water pump but we did it 2 days after we got it so I am not sure if it did it before or not.
Kinda sounds like a bad needle bearing where when you spin it and can feel little bumps in it...don't know if that makes sense or not. You can kind of feel it when your sitting in it but its hard to say because we just got it. I don't remember the beetles doing it though but may be the exhaust kinda made it less noticeable. It did have a code about exhaust something bank 1?? I am thinking the cat might be bad or the o2 sensors. i have more sensors im gonna try but when i do the exhaust I know the light will be on anyway.
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I own a 2003 SC 430 w / 133K miles. It has been serviced regularly since purchased. While driving in rain , only the engine may suddenly growl and shake. No check engine light or other warning lights illuminate. When I pull over and restart the engine , it runs fine again. There are never any such problems when driving in dry weather conditions. What the issue might be?
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I purchased a 2011 Sonata about 6 weeks ago. I like almost everything about it, but the engine is very noisy. I'm not talking about a loud growl when you accelerate, but it's almost sounds like there are 2 frequencies sounding at once. It's higher pitched and at times sounds like pinging or clattering. It's very hard to explain. Unfortunately, sometimes it's worse than others and when I've taken it to the dealer, it's not at it's worst. The dealer I purchased it from told me that it was normal, even though I drove another 2011 on their lot that did not have the sound. Another dealer told me that it was a loud fuel pump because of the high pressure of the injectors and that Hyundai is aware and is working on a new "cover" that should muffle the sound. When I contacted Hyundai directly, they did not know of any new "cover" being developed . Assuming I've described it well enough to know... The only thing I know to do is wait for it to get consistently worse, and take it in again.
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I have a 2013 F150 (8 cyl), 4 wheel drive, 110K miles, original brakes. Last week with the cold front coming thru Houston my truck started to make a very low moan when ever I turned right at low speed. It does not happen every time I turn and there is a slight vibration I can feel in steering wheel. Tire pressure is good.
Per my Dec 2016 inspection I still have 20% left on my original brake pads. I've read this could be ABS related, steering column related, etc. I cannot locate any areas where the tire might be rubbing. What I am dealing with?
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I'll start with truck specifics. 2001 Ford Expedition, 5.4, automatic, 141,000. We just got the truck 4 months ago, second owners. Seemed reasonably maintained, other than Ball joints.
This afternoon, my wife and I were cruising along on this warm 90 degree summer day, out running some errands and having a good time ( we both had today off) about 70 miles from home. When we pulled into one of our spots, I noticed a few drips heading in the direction of under the truck. i simply thought the AC, which had been running full blast for an hour, was dripping, not a huge deal. didnt think twice, a few drops, no biggie. We ran a few other errands, then got back on the highway going 70 MPH. I heard a low moan at 70 that would come anbd go, I thought I may have had a tire howling on the road or possibly the start of the shifted belt. Noise was intermittent, but went away after a few minutes of driving. another mile or two down the road, I noticed the rear window seemed oily. Suddenly, things began to click, oil blow on the back window, funny noises, drips, something was leaking.
My eyes darted to the gauges, everything was holding up as i made it to the nearest exit another few miles away. As I hit the exit, i noticed the overdrive on off indicator flashing at me on the shifter stalk. I roll to the stoplight at the end of the ramp, suddenly, the tranny slips. There was no slipping on the highway. the truck did get a grip and get me from the light a few hundred feet ( there was a line of traffic behind me) to a parking lot where I could stop and inspect. as i shut it off and peeked under, fluid was pouring out of the bellhousing of the transmission. i called pops, he brought down the truck and trailer and we winched it on, dragged it home.
So, now the truck in in my garage, on the lift (yes, im spoiled) and I'm surveying the damage. oil leaks seem to be directed only from the bellhousing area, other places only have blow by residue on them. Fluid is a little dark, but not burnt smelling, and within tolerance. I see darker fluid at work when I do transmission flushes all the time.
So, now the questions. First off, I would be guessing that the front pump seal decided to go out, does that sound correct to you gentlemen? I'm going to start digging in on removing the transmission tomorrow, and hopefully get it out by the weekend. Also, from the fluid condition, do you think I got lucky, or do you think I did damage to the transmission?
As for knowledge and resources, I'm a mechanic, I do mostly brake, suspension, exhaust, and maintenance work (oil changes, tranny flushes, other stuff like that) so I do have a decent knowledge base, and while I have swapped transmissions before, I dont have a huge knowledge of tier inner workings. I do have access to a scan tool, and other diagnostic instruments, but as i stated before, not a full working knowledge.
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Lately, when slowing down to a stop, or very slow speeds, the intake ducts make a very loud moan. It sounds like a muted horn really. Sometimes, I can put it in park, and it'll be making the noise. Open the hood, and it feels like it is coming from the plastic intake tube. When it does this, the motor likely stalls out, and needs to be restarted.
Another issue, we cruise with it at roughly 100 kph. It works good, that 4.0 has gobs of power, but when cruising, sometimes it will very randomly work bad, just have a misfire hissy fit! It doesn't affect the cruising, but it just works funny.
Its a 1997 Ford Aerostar with the 4.0 OHV, and the E- 4wd with the Dana TC28 transfer case.
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OK so I had two bad coils replaced today [URL] ....
Picked up the truck from the shop and it ran PERFECT. Driving home it started pouring rain. Got off the highway and stopped at the light and I hear a loud howl . When I give it gas, the howl goes away.
When I come to a complete stop and idle it howls again. I get home and park it and it still howls even in park. Rev it up just the slightest bit and the howl goes away... Really hope its just the water from the road that isn't playing nice and it will clear up on its own...
2000 Ex Limited 5.4 gasser 177K miles....
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I have 140,000 miles on my 2005 F-150 and for the past year I have noticed a somewhat high-pitch whistle or howling sound coming from either the front or underneath. The pitch and volume continuously varies as though it is just tire howl, but I just changed all four tires and no results. It gets much louder at about 65 mph and 78 mph, but I don't hardly hear it at any other speed. My brother says it's just a wind whistle, but I strongly disagree as it doesn't change when i drive against or with a strong wind. I rely on this pickup for work and can't afford to be without it for more than a day or two, so, for peace of mind at least, I would like to know what is making the sound.
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My 2005 Corolla LE makes a low moaning/groaning sound when I release the accelerator between 40-50 mph. This does not happen below or above the said speed range. I can hear it only when it is sufficiently quiet like in quiet mornings or on roads with low road noise. What could it be ? Do I need to fix it and how ?
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I've got sort of a howl going on, was thinking rear end, but when i jacked up the wheels and spun the driveshaft the noise seemed to come from the transfer case area. I haven't had a chance to check the fluid yet, could it be a bearing in the t-case? Its only when i'm on the gas if i let off its gone. 2001 f150 super crew 4x4
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The used 2004 F-350 I bought has developed a driver's side front end howl between 45 and 60 mph over the last 1000 miles. I tried all the standard stuff, rebalanced tires, rotated tires, put on a set of tires from a friend's F-350, replaced wheel bearings, replaced ball joints and nothing has worked.
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I recently had an oil change and 30,000 mile service at a Honda dealer. Car was running perfectly when I took it in, but now infrequently 'moans'. The low moan usually happens after I have driven the car for awhile, at a stop sign and I slowly accelerate to take off. In SF, there are lots of stop signs! As soon as I accelerate to full speed, the noise stops.
Can happen as often as five times in ten mins or not at all if I am only driving on the flat. Have had it back to the dealership numerous times since, test driven it three times with them and only heard the noise once (with a technician). They cannot find a reason for it and seem to have given up.
The car is a 2009, has 16477 miles on it and is under a Honda Care warranty. I purchased the car in 2012 as a preowned certified Honda and have had no problems with it and as I only drive about 3000 miles a year have had no previous services or maintenance issues.
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I have a 2002 Explorer. Front right howls. Local shop put new tires on, said wheel bearings are good, it Starts to howl at about 10 mph & keeps howling up to hi-way speed. While driving 55 cornering makes steering wheel vibrate a little, then straight it just howls. I have put on over 15,000 miles while this noise is happening. now seems to be getting worse...
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So im sure this has been talked about for a long time now but I m going to bring it up again. So I was in the local service shop for a new pinion seal. while there I also had them change my oil for me I was at 2800 miles so what the heck I thought go ahead and change it they used 5w-30 instead of the 5w-20 my question is will this hurt the engine or would this grade oil do better in my truck it seems to run smoother and not as noisy.
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