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View Full Version : Strange Noise in 2000 Legacy GT



deap9
08-01-2005, 09:43 AM
My car is making a strange noise when the automatic transmission changes gears. The noise tends to happen more often when the car is cold (morning) or when I have not driven it for a certain amount of hours. I am afraid it is the transmission. Has anyone had an issue like this before?

HFSDevil
08-01-2005, 12:15 PM
Possibly, is it possible for you to record the sound, and if not can you describe it better??

Mileage???

deap9
08-01-2005, 01:22 PM
i will record it for you later today, but for now i'll try to describe it. it sounds like a growling/grinding/slipping noise. Mileage is 54000

sheepdog
08-01-2005, 02:10 PM
torque converter? although that should not be going out at that mileage hmmm :?

Have you been changing the ATF semi-regularly?

deap9
08-01-2005, 03:51 PM
How often does ATF need to be changed? I just got the car 2 months ago and I am assuming the previous owner performed the proper maintenance

sheepdog
08-01-2005, 03:59 PM
if theyve been doing the regular maininance you should be in the clear on that. To tell the truth I dont remember how often ATF should be changed, seeing as ive never had an automatic car, I would just change it when I was told to when I worked at the service center haha.

HFSDevil
08-01-2005, 05:52 PM
Every 30,000 miles it should be flushed out.

It could be yours synchros also....

We will get a better idea after you record it :)

deap9
08-01-2005, 11:28 PM
I have recorded the noise. After much heated debate, my pal and I have discoverved the noise is more of a rattle than a slipping/grinding noise. The noise is not coming from the transmission (I dont think). This recording is of my Legacy GT in neutral. I am revving the engine until 4500RPM and then slowly lowering to 3500RPM. The rattle is generated somewhere in the RPM range of 3500-4000.

Here is my recording: http://home.twcny.rr.com/deap9/rattle.wav

You can first here the noise at 13 seconds into the 40 second clip and then repeated multiple times by slowly decreasing and increasing the RPM.

Wiscon_Mark
08-01-2005, 11:52 PM
The only sounds (besides you revving and hitting the microphone) that I could hear sounded like a heatshield rattling, which I hear all the time on my 95 with a 5MT....I dunno man. It's coming at odd times for it to be a heatshield, I'd have it checked out by a mechanic if noone else can figure it out :?

HFSDevil
08-02-2005, 02:09 AM
Something with the exhaust. I would bet money on it. Jack your car up, put it on stands and do it. Have your friend rev the car while u are on your belly and try to pinpoint where it is. Once you figure the general area it is at, turn off you car and use your hand (with a glove on preferably) and shake it and see if u can re-create it.

If it is the heatshielding, just take it off no big deal.

deap9
08-04-2005, 07:02 PM
I took the car to the shop. Turns out the heat shield was the issue. Everything is fine now. :P

Wiscon_Mark
08-04-2005, 07:14 PM
I was right!!!! yay :D

Yay for you too, thank god it wasn't the tranmission :) Where was the heatshield? Exhaust? I know there's one loose in my exhaust system, but then again, my exhaust needs ripping out and replacing, so I'm not concerned about it...

Glad the problem is solved :D

phi11
08-04-2005, 11:16 PM
Heatsheilds and rust.
I just removed it!

Disturbed_beast
08-05-2005, 03:28 AM
Heatshield who needs that, i should don't have one throw that out when i did the engine swap,went pretty far to throw it like a frezibie

badbasser98
08-05-2005, 03:38 PM
Mine rattles around the 1800 - 2200 RPM. What heat shield is it exactly? I want to fix it. Gets annoying after awhile...

-BB98