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10-28-2018, 07:45 PM | #1 |
Scooby Newbie
Member#: 489876
Join Date: Aug 2018
Chapter/Region:
MWSOC
Vehicle:2002 wrx wagon wr blue |
Let's play 'name that driveline noise'
'02 wrx wagon that sat for 8 years, 102k great shape one owner 65yo old dude Whine noise is most audible in 5th gear, barely there in 4th, also audible in lower gears under heavy load, as you can see moving the gearshift seems to change the noise ........ hmmmmm ..... Rear end bearings ?? Dealer said trans & clutch are ok, I've driven for 1000 miles so far and it feels fine .. Have done extensive searches & reading, don't know how much to rely on just blindly throwing $$ at it and guessing Any takers ??
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10-28-2018, 07:57 PM | #2 |
Scooby Newbie
Member#: 458058
Join Date: Nov 2016
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Assume oil level is good?
Maybe change the oil. |
10-28-2018, 08:02 PM | #3 |
Scooby Newbie
Member#: 489876
Join Date: Aug 2018
Chapter/Region:
MWSOC
Vehicle:2002 wrx wagon wr blue |
Thanks for reply .. Rear diff oil has about 10 miles, engine oil has about 50. Tried to do the obvious first, to no avail .. Would the oil cause it to (almost) go away in 4th gear?
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10-28-2018, 10:46 PM | #4 |
Scooby Newbie
Member#: 458058
Join Date: Nov 2016
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I meant the transmission oil, sorry
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10-28-2018, 11:32 PM | #5 |
Scooby Specialist
Member#: 375462
Join Date: Dec 2013
Chapter/Region:
NWIC
Location: Portland, OR
Vehicle:2006 Impreza WRX STI WR Blue |
Sounds like this are tough given the audio quality degrades over video...
The fact that the noise changes with the shifter being moved doesn't mean much as that actually changes the sound of a healthy transmission, too. If I had to blindly guess - center propshaft bearing. All the internal transmission and diff. parts should be more or less resistant to corrosion given the sealed case. A better way to check is see if the noise happens in gear, free revving in neutral, or free revving with the clutch disengaged (both in gear and in neutral). You can use the results of this to isolate the noise to a specific portion of the driveline. Beyond this, you can compare the rotational noise with the RPM using audio software to isolate exact gear pairs that have a problem. This gets pretty advanced, but start with the first part and see where you're at. |
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