1999 Toyota Corolla whistles through vents

Tiny
99TOYOTACOROLLA
  • MEMBER
  • 1999 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 19,000 MILES
A/C whitstles when on. The higher the fan turns up the louder the whistle. Noise is coming from inside car, not under hood.
Tuesday, March 16th, 2010 AT 1:47 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
You can try to take cowl off and look for leaves or debris caught in intake.

Could also be a blend door not fully closed, or the blower motor fan.

I would start with cowl.
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Wednesday, March 17th, 2010 AT 5:39 AM

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