[jabber]

I have a 2005 Legacy Outback. After replacing both cv joints (left & right) twice to fix a “clunking while acceleration” problem, the problem still persists. Subaru’s suggestion is to just start replacing parts to see what works. I’ve also had an independent mechanic say the same thing. Not a practical option, I must say. Now what?


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[relative4]

I have a 2005 Legacy Outback. After replacing both cv joints (left & right) twice to fix a “clunking while acceleration” problem, the problem still persists. Subaru’s suggestion is to just start replacing parts to see what works. I’ve also had an independent mechanic say the same thing. Not a practical option, I must say. Now what?


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Steelman Chassis Ears

 

[1 Lucky Texan]

check the rear bushing on the lower control arms.

check trans and engine mounts.

describe sound and when it happens better. is it 1-2-3 clinks, repetitive in time with wheels rotation....? happen in reverse? touching brakes help?

 

[jabber]

check the rear bushing on the lower control arms.

check trans and engine mounts.

describe sound and when it happens better. is it 1-2-3 clinks, repetitive in time with wheels rotation....? happen in reverse? touching brakes help?

It is coming from the front end. No pattern to wheel rotation or while in park. I’ll try reverse. Thanks


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[jabber]

Accelerating up a hill and/or while turning mostly right. Nothing while braking. Also, a transmission guy looked at it.


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[1 Lucky Texan]

swapping axles L-to-R and seeing if the noise happens on left turns would **** or exonerate axles.

 

[subiesailor]

Do you drive over snow berms in / out of the driveway?
I bent two hangars on the exhaust once going through a snow berm at the driveway. I had a loud thunk in the floor between my seat and my feet. Exhaust bumping the floor pan. Spring weather I finally got under there and bent the hangars and got rid of the thunking.

 

[jasonojordan]

Have you checked your driveshaft at all?

 

[1 Lucky Texan]

did this come on slowly, or was work done to the car before it began? new tires? new axle? a wreck?

 

[jabber]

Do you drive over snow berms in / out of the driveway?

I bent two hangars on the exhaust once going through a snow berm at the driveway. I had a loud thunk in the floor between my seat and my feet. Exhaust bumping the floor pan. Spring weather I finally got under there and bent the hangars and got rid of the thunking.

No snow. I’m in San Diego and 81 degrees out!


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[traildogck]

Have you checked your transmission mount?

 

[matt88-8]

The upper engine mount (Rod that stretched to firewall) has caused a strange clunk on my car before. It looked tight, but when I checked with a wrench the top bolt was loose. I originally thought it was a bad c.f. shaft as well.

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[jabber]

check the rear bushing on the lower control arms.

check trans and engine mounts.

describe sound and when it happens better. is it 1-2-3 clinks, repetitive in time with wheels rotation....? happen in reverse? touching brakes help?

It doesn’t happen in reverse. It’s worse when accelerating on a right turn, but happens often on left turns. It sounds equally bad on left and right side from outside the car. When I take my foot off the gas it stops. After the car is driven a bit the clunking gets worse upon any acceleration except down hill.


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[sternman318]

You still haven't really described the problem accurately. Could you take a video or recording? No idea if it's continuous clunking or intermittent or only on shifts or what.

 

[PowderTrain]

You still haven't really described the problem accurately. Could you take a video or recording? No idea if it's continuous clunking or intermittent or only on shifts or what.

I believe I have a similar issue with a 2007 outback 5MT. What started as a slight groan while accelerating on right turns, gradually progressed (over 30k miles) into clicking which turned into clunking. The clunking is now constant, sometimes even felt in the steering wheel. The front passenger wheel has pretty severe positive camber, understeering in lefts, right turns can shake the steering wheel. “ER 55” on dashboard along with ABS, CEL.
Putting the car on a lift tonight, will report any solutions. Any suggestions are welcome!