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Car Problems? 9-5 Only If you're experiencing problems with your 9-5, post your question in here. CEL Code or GTFO! |
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#1 |
TSLMember
Join Date: Sep 2012
Location: Mainly Providence RI, and Exeter NH
Posts: 98
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Odd buzzing from the gear box.
So I finally replaced my driver side window regulator, and now that I can put my window down I noticed a discomforting sound. I was on the highway (window down) going through a construction zone so I was really close to those concrete barriers in the left lane. Around 35-65 mph from 1,600-3,000 rpms both accelerating and decelerating I heard a buzzing that sounded like it was coming from the gear box. Think of playing cards in the spokes of your bicycle. (It reminded me of my old '89 Volvo 240 to be honest, that sound a diesel truck transmission makes..) Also, each gear change sounded like a loud "clunk". Open road (with less sound to bounce around) I can't hear any of these things at all. But next to a wall or in a tunnel its very prevalent. I flushed the gear box about 8k ago.
Am I in for something sinister or is it all in my head? |
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#2 |
Live, eat, and sleep by TSL
Join Date: Sep 2008
Location: baltimore
Posts: 1,643
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Clutch chatter from loose clutch springs are normal sounds with an old clutch.
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#3 |
TSLMember
Join Date: Sep 2012
Location: Mainly Providence RI, and Exeter NH
Posts: 98
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Ok. So just keep rolling with it until the clutch starts slipping? The shifting is still smooth and it pulls really hard. I just hate odd noises...
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#4 |
Live, eat, and sleep by TSL
Join Date: Sep 2008
Location: baltimore
Posts: 1,643
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You could always give the tranny a fresh oil change. Servicing things never hurts.
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#5 | |
TSLMember
Join Date: Sep 2012
Location: Mainly Providence RI, and Exeter NH
Posts: 98
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Quote:
Could it be belt related? Coasting deceleration on the highway in 5th, 65-55mph, I put the car in N and the sound went away. Reengaged 5th and the sound came back. Berrrrzzzzzzzzz. Again, can only hear it when next to a wall/barrier/in tunnel. |
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#6 |
Elder
Join Date: Aug 2006
Posts: 2,962
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The diff in these cars is noisy for sure, jsut drive it unless you ahve all teh money in teh workd to make the noise go away
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#7 |
TSLMember
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You havent considered an exhaust leak? If you have a small leak it could make a sound similar to a buzz and would indeed be more noticable in a confined area and also go away when put in neutral/load taken off engine... Have someone plug up the tqilpipe quick while you listen for a leak.. Sounds can be tricky just because something sounds like its coming from somewhere doesnt mean it is...
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#8 | |
TSLMember
Join Date: Sep 2012
Location: Mainly Providence RI, and Exeter NH
Posts: 98
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I realize that describing sounds is a popular trend on forums, and that they're really hard to diagnose when doing so.. thank you all for the input. An exhaust leak might be a contributing factor to that buzz at higher rpms (my highway driving example..) but at low speeds, particularly in 2nd gear, there is a grinding/churning/crunching sound that isn't consistent with engine speed.
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#9 |
TSLMember
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This 99 engine/trans I just installed I too get a buzzing sound which definitely sounds like its from the gearbox..but shifts and drives perfectly after sitting on a VT mountain for 6 months without running. my 01 never made so much as a peep as far as I can remember but I am definitely getting that buzzing on this trans and now you got me all paranoid
![]() this 99 has 185k and given the condition I don't believe its ever had its fluid changed.. my 01 with 182k has had fluid changes and a new clutch recently I guess maybe either you get one that gets noisy or it doesn't? |
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#10 | |
SAABeginner
Join Date: Jan 2021
Posts: 1
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Quote:
That's a very strong "highway bollard" then. Best of luck to your car! |
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