2003 subaru legacy, noise on acceleration that goes away over 30 mph

Asked by Apr 06, 2016 at 10:12 AM about the 2003 Subaru Legacy 2.5 GT

Question type: Maintenance & Repair

2003 legacy makes a ticking or rattling noise on acceleration; goes away over
30-40 mph, think it is gas-related but not sure which part

5 Answers


Hmm.. so it ONLY happens when taking off? Doesn't happen when stopped and at an idle? If so, I might check into CV axle. It might still be present at 30-40+ but you just can't hear it. Ticking would be "consistent" and rattling makes me think of exhaust heat shield (changes with harmonics / throttle response / etc and not so consistent - would likely be present at idle).


I'm going with Walth re heat shields first, as you said "ticking or rattling" rather than "chattering"...from CVs. Could also be piston slap, but that usually goes away when fully warm...but so do many heat shield rattles. Next oil change just bang under there with a rubber hammer to find the loose shield and clamp/bend/bind/remove it. If piston slap ignore. If CV boot replace axle fairly soon (if chatter continues when going STRAIGHT then risk of separation increases).


Hey Ern, any issues with reman subie axles? I know the festiva's have the wrong clip design and once they're IN.. they do NOT like to be removed. Borderline breaking the trans to remove the axle.


Maybe a few percent wobble at speed, but they're cheap and pretty easy to re-swap. Remarkable that you can get a PAIR of lovely half- shafts for the cost of a battery...used to be the other way around, eh?


LOL well.. I'm turning 30 later this year so... not really ;P But yeah, 40 bucks a pop on RA. Not bad at all.

Your Answer


Looking for a Used Legacy in your area?

CarGurus has 15,810 nationwide Legacy listings starting at $1,700.


Subaru Legacy Experts

  • #1
  • #2
    Nick Eidemiller
  • #3
View All

Related Models For Sale

Used Subaru Impreza
196 Great Deals out of 21,069 listings starting at $1,995
Used Subaru Outback
426 Great Deals out of 35,644 listings starting at $199
Used Subaru Forester
396 Great Deals out of 36,120 listings starting at $750
Used Honda Accord
1,033 Great Deals out of 59,785 listings starting at $1,099
Used Subaru Impreza WRX
48 Great Deals out of 1,305 listings starting at $3,999
Used Toyota Camry
955 Great Deals out of 82,112 listings starting at $999
Used Honda Civic
783 Great Deals out of 70,339 listings starting at $1,499
Used Subaru Impreza WRX STI
30 Great Deals out of 707 listings starting at $8,995
Used BMW 3 Series
1,080 Great Deals out of 33,741 listings starting at $1,000
Used Audi A4
296 Great Deals out of 12,012 listings starting at $199
Used Nissan Altima
1,012 Great Deals out of 78,490 listings starting at $1,627
Used Toyota RAV4
721 Great Deals out of 46,747 listings starting at $1,195

Used Cars For Sale

2018 Subaru Legacy For Sale
8,409 listings starting at $19,405
2017 Subaru Legacy For Sale
32 Great Deals out of 1,963 listings starting at $17,876
2016 Subaru Legacy For Sale
27 Great Deals out of 680 listings starting at $12,495
2015 Subaru Legacy For Sale
66 Great Deals out of 1,531 listings starting at $10,977
2014 Subaru Legacy For Sale
27 Great Deals out of 661 listings starting at $7,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.