Lynne Posted November 26, 2015 Share Posted November 26, 2015 My 2002 impreza has approximately 75,000 miles. Today it started to make a noise when accelerating. I don't know how to describe this noise--it's not a knocking,ticking or rumbling noise, and I'm not sure what a whirring noise is--to me it sounded like a suction of a vacuum cleaner. When I pressed on the gas pedal the noise got louder--but here's the thing it would stop and come back, so it wasn't continually making the noise. In addition I thought I heard a very quiet noise when not accelerating, but not sure--couldn't pinpoint that in traffic. I'm bringing it in for repair on Friday but was wondering if anyone could suggest what might be the problem. I would like to be somewhat knowledgeable about this situation when I speak to the mechanic. Link to comment Share on other sites More sharing options...
Fairtax4me Posted November 26, 2015 Share Posted November 26, 2015 Is it a high pitch or low pitch noise? Any recent work done? 1 Link to comment Share on other sites More sharing options...
nipper Posted November 26, 2015 Share Posted November 26, 2015 Got a parking garage or an alley nearby? Drive with the windows down it may magnify it Link to comment Share on other sites More sharing options...
Lynne Posted November 26, 2015 Author Share Posted November 26, 2015 The noise is low pitch. The most recent work was about 2months ago. It was the regular maintenance work. No parking garage or alley nearby--was thinking about that. Link to comment Share on other sites More sharing options...
nipper Posted November 26, 2015 Share Posted November 26, 2015 a growel? Link to comment Share on other sites More sharing options...
forester2002s Posted November 26, 2015 Share Posted November 26, 2015 Exhaust heat-shields rattling? Link to comment Share on other sites More sharing options...
Lynne Posted November 27, 2015 Author Share Posted November 27, 2015 I listened very carefully this am as there was no traffic in the street. The noise I hear from the outside by the engine sounds like a hissing noise. Sounds different on the inside. Of course it stopped when I got to the Subaru service. They're letting it sit for a while and will do another road test Link to comment Share on other sites More sharing options...
idosubaru Posted November 27, 2015 Share Posted November 27, 2015 heat shields. common, particularly in rust prone areas, happens all the time. the dealer might be a bad place to have that repaired - it could be extravagant in cost for something many people repair for $2 and 8 minutes. a mechanical/movement related noise under load is almost always a CV axle (recent new axle installed would be suspect) or front differential. check the differential fluid level and quality and look for metal shavings. but i doubt you'll need to get past heatshields. Link to comment Share on other sites More sharing options...
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