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Hissing noise along with rough idle

Tiny
AMBER DUKE WHELDEN
  • MEMBER
  • 2003 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 224,645 MILES
For the past five months or so it has had a really bad idle. It idles at almost 0 rpm's. Along with the low idle it has a really bad sputter, and has trouble when taking off from a stop (I am thinking a misfire). I have been driving it like that for nearly five months, as no one can pin point the problem, and I have replaced many things already. Nothings seemed to change it. Just today it started making a hissing nose under the engine, sounds almost like air being brought in. Any idea what this could be, and if they are related?
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Tuesday, August 16th, 2016 AT 12:55 PM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
The noise sounds like a vacuum leak which can effect the engine running cause a miss etc. Has anyone ever done a smoke test looking for a vacuum leak?
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Tuesday, August 16th, 2016 AT 4:51 PM
Tiny
AMBER DUKE WHELDEN
  • MEMBER
  • 6 POSTS
The transmission just totally went, after barely making it home. Not sure if it was related to the noises, but now it is a much worse problem.
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Tuesday, August 16th, 2016 AT 6:03 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
That is terrible did it just stop moving?
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Tuesday, August 16th, 2016 AT 8:17 PM

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