Subaru - Outback :: Clunking Sound Only When Accelerating - What Could It Be
Feb 19, 2016
My 1999 Subaru Impreza Outback Sport recently got new tires. After, I really started to notice clunking noises when accelerating, but they would stop when the brakes were pressed. It is sometimes loud, other times it may be harder to hear. My dad says the car has been doing it for a while now. When I first got the car in 2011, I remember the car would creak repeatedly when slowing down, but it had to be the right circumstances for the vehicle to be noisy when coming to a stop. Now it does the clunking noise (gets faster as the car goes faster) only when accelerating, does not creak or make noise when turning.
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I have a 2010 Subaru Outback that is making a sound that sounds like glass bottles clinking. It occurs when accelerating around 20mph and/or around 40 mph. Can really hear it when there is a load like going up a hill at these slow spends. Dealership did a lot of flushing and lubricating and new filters etc, but that wasn't it. Also replaced my heat shield (yikes$) but that wasn't it. Then they had me run a tank of 93 octane and they didn't fix, so put in a bottle of engine cleaner and it didn't work either.
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2002 Subaru Outback 4cyl auto trans 166.8K miles
Hearing a "clunk" lately when switching into reverse in the AM after starting the car. The transmission seems to drive completely normal otherwise. So I checked the trans fluid and it's fine. Then I started looking at mounts. Upper engine mount has about 1mm of play, lower mounts don't budge. Then I went to the transaxle mount and found that there seemed to be almost 2cm of space (can easily fit my fingers in there) between the stopper and the transaxle crossmember (picture attached). When I have someone put the car in reverse while I am underneath (obviously we have the brake / parking brake engaged so I don't get run over) I see this stopper move upward and can see the entire drive shaft move upwards also. Not just a few mm, but on the order of centimeters. I could not get the clunk to occur to see if I can hear where it comes from.
Is this space and movement in the stopper and drivetrain normal?
If it's not normal, could this cause the clunk to happen?
It it's not normal, should I have it repaired on this vehicle? Is it hurting anything / worth it long term?
If it's normal, any other advice on sorting out the clunk? It does it about 75% of the time I shift into reverse, but seems less likely when the car is warm.
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Took my 06 Outback (106K miles) in to have the right front inner & outer CV boots/axle assembly replaced (one of the boots had torn open and was slinging grease everywhere, so no surprise there). When I was driving home after picking the car up, I noticed what felt like a wobble or shudder that seemed to come from the center or right side of the car (I couldn't tell which). It would only happen while accelerating, kicking in at about 20mph and then seeming to go away at about 30mph. It didn't happen at all while coasting, braking, or decelerating. The more of a load there was on the engine, the worse the wobble/shudder was, and if I accelerated very very slowly it wouldn't happen at all or would be just barely perceptable. I didn't feel it in the steering wheel; it was more like something felt through the seat and the car itself, if that makes sense.
So I took the car back to the shop the next day, and although the owner of the shop said he drove the car and didn't notice anything, he decided to go ahead and do the job over under warranty just in case they had installed a bad axle or had otherwise "botched" (my word, not his) the job. He also rotated and rebalanced the tires on the off chance that's where the issue was. Within about 15-20 minutes of picking up the car the 2nd time, I started noticing the wobble/shudder again, always under the same conditions as I've already noted--only while accelerating, always kicking in at about 20mph and going away at about 30mph, and always worse the more of a load there was on the engine/the faster the acceleration. The only additional info I've been able to glean is that it doesn't ever seem to happen when I drive the car first thing in the morning, but starts to happen as the car warms up.
At a complete loss, I crawled under the car and starting looking and poking around for something that might be loose or knocking around. I was particularly interested in determining if there was any play in the U-joints or some kind of damage to the drive shaft. I didn't notice anything except for this--at different points on the drive shaft there are what I assume are balancing weights welded to the shaft. Well, I found a bare spot toward the rear end of the shaft that seems as if a weight used to be there (although I can't say with 100% certainty). The drive shaft is painted entirely black, as are the weights, except for this one shiny, bare-metal, square-shaped spot. "AHA" I thought to myself...balancing weight broke off (although how that would happen beats the heck out of me since it's fairly well-shielded from road debris...maybe it was just a cr@ppy weld), now the shaft is out of balance, hence the wobble/shudder. However, the more I thought about it, the more I wondered...if the shaft was out of balance, why would it only wobble while accelerating? I understand why it might only do it at certain speeds, but if a shaft is out of balance, shouldn't it wobble/shudder at those particular speeds regardless of whether I'm accelerating, decelerating, or coasting? And why would it not seem to happen until after the car had been driven for 15 minutes or so and had warmed up? Again, it seems like an out-of-balance drive shaft is going to be apparent regardless of the operating temperature of the car.
So, could I be on the right track? And if so, is the fix as simple as welding a new weight on there? Can this be done with the shaft still on the car? I think Subaru considers the shaft a non-serviceable part, but I don't want to trash and replace an otherwise perfectly good shaft for what seems like a pretty easy fix (albeit one that is probably beyond my own abilities).
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My outback has 57k miles on it and already needs the front struts and rack replaced (diagnosed today at the Subaru dealership). The car has been making a whining noise in the engine and has been clunking when making turns for the past week. I have also noticed it hasn't been taking bumps as smoothly. They told me that both ends of the rack are leaking and both front struts are leaking. My husband did admit to hitting the curb on the driver side front tire pretty hard while making a u-turn about a month ago, but all other driving is pretty standard. Yes, we drive on dirt roads in the mountains a few times a year for hiking, but don't drive in a manner that I consider wrong. Did the u-turn incident cause this? (hard to believe that would affect both sides of the rack and struts).
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The car had no accelerating power and it was well overdue for new spark plugs and wires. I just replaced them and it's doing much better, however, the engine seems to be shaking a bit when I start it/idling, which is making the entire car shake some too ( the seats, car shifter, etc ) . It's been awhile since I've also replaced the air filter too, which I obviously should have checked but haven't yet. When I replaced the spark plugs, I noticed there was a minor amount of engine oil on the spark plug wires, where they connect to the spark plugs; more notably the front 2(of 4), left and right. I also just changed the oil and there was no oil loss really, other than any minor amounts that get burned off through the miles.
The exhaust manifolds ( y-split ) are okay, but one of the nuts seems to loosen over time, causing a minor air leak there and makes it a tad noisy. Near the back half of the exhaust system, there some water dripping at one of the connections, and at the tail pipe the exhaust smoke is chugging and isn't consistent sounding.
What is still causing this engine shaking and the chugging noises from the exhaust system. The 'Check Engine' light is on, due to other repairs I know I need to make, such as an 02 sensor and fuel level sensor; however, lately it has started blinking too.
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I brought my Outback to one mechanic due to overheating and a strange skipping feeling when accelerating. First mechanic said head gaskets needed to be replaced, I wasn't surprised since I have about 142k miles on it and it has been leaking oil, quoted between $1800 and $2000. I took it to another shop, recommended by a friend, and they agreed the gaskets needed to be replaced and there was also a misfire due to the spark plugs. This shop quoted me at $2200-2600 for the head gaskets, spark plugs, all wires and timing belt, all other engine gaskets, thermostat, engine oil and coolant. I still owe a good bit on this car (parents bought on the fly from a less than stellar used lot and now it is my problem), and my thinking is I do not want to bring on more debt by attempting to trade this one in and go for a new car. My question is, do I go with the second mechanic that wants to basically rebuild to top of my engine, or would I be ok limiting the repairs to the head gaskets and spark plugs?
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This is a question about a Subaru Outback, but probably pertains to many other cars as well. I have a 2006 Subaru Outback with 112K miles. I bought new tires for it in May 2012, and in September 2013 I started to notice a low humming/buzzing sound while driving. I looked online and came up with 2 options - either the wheel bearings or the tires. Because the sound changed pitch depending on the road surface, I thought it must be the tires. I took it in for an oil change and had the mechanics check the bearings. They said the bearings were fine, but the tires were cupping and feathering badly because I hadn't rotated them, and that was the source of the noise.
I had them rotate the tires and do an alignment and went on my way. The sound slowly got worse - it peaks at ~65 MPH and then changes pitch above 70 MPH and is not so bothersome - and I started to lose gas mileage ( 4-5 MPG). On Dec. 30, 2013 I took it in for the next oil change and bought brand new tires - Bridgestone Turanza Serenity designed for quietness - and had them do an alignment, and drove away only to find that the noise is still there and I still have lousy gas mileage.
My next thoughts were the transmission or the catalytic converter, but since the noise doesn't change when I take my foot off the gas or put it in neutral I don't think it is either one of those. The alignment showed that the Caster on both front tires is off, but since both tires are off by roughly equal amounts I was told that this is not something to worry about. I do occasionally notice some vibration while driving or while idling, but it is intermittent and I don't think it has anything to do with the noise.
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I have a 1998 Subaru Legacy Outback that has been having a sporadic starting problem for almost two years. Occasionally and mostly when it's cold, but not always, the car will sound like it's going to start for a second and then go dead. I will have to turn the key over and over, sometimes many times until it "catches". And so far it's always started, eventually. I have a new alternator and battery, the belts are newer, a rebuilt engine with about 50,000 miles and have had the starter and relay system checked, which was okay. My mechanic, who's been working on Subarus for years, is stumped. He says to wait until it happens again and have it towed in so he can look at the car while it's acting up.
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I have a 2004 outback with just over 100k miles on it. It has been making a loud vibrating sound lately. It makes the sound when idling and even louder when I step on the gas, but at highway speeds the sound disappears. I do not actually FEEL a vibration, it just sounds as though something is vibrating/rattling. We had a mechanic check it out and they thought it was an exhaust issue. Apparently not, because the sound is still there.
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My 2004 Outback Wagon started making a loud whining sound the other day - but only in reverse. I've been told that it's the brakes.
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I just took my 2002 Subaru into the dealer to have them fix a fuel line leak that I was hoping was on recall (it wasn't). I don't take my car to them regularly but they had to be the ones to diagnose it in case it was a recalled part. They called today and said that the fuel line was leaking onto my engine, that there was no recall, and that because they heard a ticking sound coming from my engine they were predicting my cam bearing was giving out and it would be $3000 to fix it. I asked how they diagnosed it and they said they have a guy there who knows the sound well and can hear it and predict it accurately, but they didn't actually take the engine apart or anything to check.
I'm feeling a bit confused. I will have my mechanic look at it and ask him what he thinks but he did my brakes not too long ago and did not mention any concern about the clicking. I change my oil like a responsible car owner and take care of it, but it does have 200,000 miles on it. I need to drive a long distance in a couple of weeks and am wondering if my engine is about to give out....
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2006 Subaru Outback. It has around 121000. I bought it at 113,000 last October since my previous 1998 Subaru made it to 240,000. So far I've taken it in for all new wiring and a tune up. And I was assured by the car salesman that the timing belt had been changed prior to my purchase. Anyway, since August I've had a rattly/whirring sound that I am experiencing over 15 mph. It seems to be coming from the back of my vehicle. It sounded like I had a hole in the muffler because it was reminiscent of when I lost my muffler on the highway with my 1998 subaru a few years ago, but this sound is definitely not as loud. The sound does increase in volume at high speeds on the highway but has so far not been as loud as my previous experience. (and the muffler is still there when i look under the car)
When I took my car in to get the oil changed a couple months ago, I asked the mechanic to check and see if he saw anything while under there. They told me it was my heat shield.
Recently the noise started being a little bit louder on the highway so I thought maybe it was my tires since they were very due to be replaced. I bought new tires within the last few weeks and there has been no change with the whirring sound on the highway. Yesterday, I noticed a light thunking sound that started happening between the speeds 10-40mph. It seems to be in the front of my car and occurring with the rotation of my wheels. There are no sounds when Idle.
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When I start my Subaru 2001 Outback, it makes an awful sound. Not as much as a screech, but more like a loud grinding, and then it wanes and goes away after about a minute. Then when the car is warm, the sound is all about gone. It's been going on for a few weeks now and wasn't there before.
Listen to the audio file below.
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2007 Subaru Outback, 110 K mile sI drive 200 miles each way, once a week to DC on Sunday and back home to the mountains of Western MD on Friday. All problems happen on that long drive, not on local trips. Only happens when I'm driving in the mountains.
Symptoms: Sometimes overheats (needle gets close to red area, but not quite into it). I pull off and stop the engine for 5 minutes, start the engine, and needle goes to normal area. This happens only after driving about 2 hours. Continue the trip without problem. Never had to stop more than once.
A/C sometimes doesn't cool. Harder to tell now that it's cooler outside, but it put out only warm air one day two weeks ago. The next morning, it worked fine. Heat does not work very well. Set at max (85), the air coming out is barely warm. Also, the passenger side is colder than the driver (dual controls, both set at 85).
May not be related, but I can hear a sound like water gurgling when the engine is running. It's very soft and seems to be inside the dashboard behind the steering wheel. There are no apparent leaks anywhere. Seems to only do it when I am pressing on the accelerator.
My mechanic checked the A/C gas, flushed and filled the cooling system, looked at the temp sensor inside the car, and doesn't know what to try next. Could this be a computer problem, or is it mechanical?
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I have a 2005 Subaru Outback. I will be driving and lose all power to the car and it dies. I will try to restart the car and all the battery power will be on (lights, radio, power windows, etc.) however there is no sound when trying to crank the key. If I wait a little while or push the car, it will start back up with the check engine light on and cruise light blinking. I can drive it a block or so with decreased acceleration and it will die again. Brought it to my local shop and they could not recreate the issue (sat overnight). They cleaned the battery terminals and cleaned the throttle body. I drove it for about 3 weeks with no issues and the same exact thing happened again.
The shop told me the codes they got from the check engine were all communication codes (??). The only thing know about the two days the car broke down 3 weeks apart is I filled up the tank with gas on those days (but that doesnt seem like it would matter).
After sitting for an hour waiting for the tow truck. The car started up and he was able to drive it off the truck with no issue. I am totally lost here.
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While driving my daughter home from daycare yesterday I went over a speed bump in the park and immediately noticed a dragging feeling / sound.
After some inspection, I determined that either my spring broke or the spring broke free from its mount on the strut and was now rubbing the back of my tire.
Anyway, I've heard of the springs breaking on these cars, and I need new struts anyway, and it's older to begin with, so I set about ordering a complete strut / spring replacement for the front.
On 1aauto I found this set, part number 1ASSP00874. They seem dodgy about whether this part is intended for the Outback as well as the Legacy. I can find sites that sell parts that claim to fit one or the other or both. In this case they seem to claim both.
I know the Outback trim was slightly raised from the regular Legacy, but I can't find any other parts.
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So i have been noticing a lugging/clunking sound when accelerating from turning.
I say it sounds like that because its almost like when a noob driving is trying to shift and stalls for not giving enough gas. but this is comming from the back and for the longest i thought it was due to the ESP kicking in but i been driving quite calm lately due to blow shocks.
I wish I could get a sound clip but its only when driving. Is that normal? Prolly not but hear something when it engages? I am on a OEM haldex controller atm.
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Two different Subaru dealership repair shops told me that i have loose rear wheel bearings on my 2003 Outback. My car does sound like a VERY loud airplane all the time now, but the noise is the only symptom i have noticed. My shop has told me that they will fix it for a discounted price, but they are not pushing me to get it fixed, and have told me that it shouldn't cause any actual problems besides the loud noise being very annoying. All internet research to the contrary, though. I have to drive about 1000 miles round trip next month -- is it just going to be a noisy trip, or is something horrible going to happen if i don't get the bearings taken care of?
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When accelerating from a stop, I get a clunking sound from the front end. I took some pics of the sway bar and I think it maybe loose. There is a gap between the bolt between the bar. Is this normal, or can I tighten it with the X on the ground or does it have to be up on a lift to properly tighten?
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2011 Subaru Outback; in January of 2015 the airbag warning icon shows on the dashboard and a loud alarm sound is played. If I turn the car off and on and I make it go away. Not easy when driving 75 mph on mountain highways. Dealer where I purchased the car has been useless; three visits there and a dozen unreturned phone calls.
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